The Role of Mixing Equipment in Drug Development and Manufacturing

The need for safer and higher-quality drug production is prompting changes in the pharmaceutical industry. Innovative mixing technologies are emerging as a solution for transforming traditional workflows. These systems enhance product consistency, improve efficiency, reduce waste, and offer superior process control, making them essential tools for meeting modern drug development and manufacturing needs.

The Importance of Mixing in the Pharmaceutical Industry

Mixing is foundational to drug development and manufacturing, affecting every aspect from product uniformity to process efficiency and quality. Pharmaceutical products require homogeneity, reproducibility, and quality to ensure therapeutic efficacy and patient safety. Advanced mixing equipment is critical for meeting these requirements. While traditional mixing methods have limitations with process control, scaling operations, and dead zones, advanced mixing technologies overcome these challenges to ensure more effective medicines.

Mixing is fundamental in various pharmaceutical processes:

• Formulation development: Mixing ensures each dosage unit contains the correct amount of ingredients to prevent under- or overdosing. During formulation development, mixing directly affects product consistency and uniformity.
• Active pharmaceutical ingredient (API) synthesis: Advanced mixing enhances reaction rates, minimizes by-product formation, and improves yields. Mixing also promotes effective contact between reactants, controls temperature, and disperses heat to facilitate chemical reactions to produce APIs.
• Granulation: Tablet production requires even distribution and uniform granule size and composition. Mixing improves tablet compressibility and reduces segregation.
• Dissolution: Mixing increases dissolution rates by reducing concentration gradients. The process ensures complete dissolution, accurate dosing, and reliable results.
• Cell culture: Mixing processes maintain uniform nutrient and oxygen distribution to promote cell growth for biologics production. This process maximizes cell viability, productivity, and product quality.

Selecting the Right Mixing Equipment for Pharmaceutical Production

Specialized equipment plays a pivotal role in meeting drug formulation requirements. Key mixing equipment technologies include:

Continuous Processor (CP)

Continuous mixing processors meter raw materials as they enter the mixing chamber and create a consistent mixture by subjecting the materials to the appropriate amount of shear intensity. Continuous processing transforms pharmaceutical manufacturing by enabling faster, more efficient, and more controlled production. Materials move through each operation without interruption, and sensors and analytics enable real-time quality assurance and process adjustments.

CPs automate material handling, reducing the risk of contamination. Real-time quality control features allow teams to detect and correct deviations immediately. CPs also offer flexibility by enabling rapid changeover between formulations and better scalability.

This mixing equipment is particularly useful for applications requiring continuity, including:

• Blending, granulation, drying, and tableting for capsules and tablets
• Film coating of pellets or tablets
• Aseptic processing for injectables
• Flow reactors for chemical synthesis, crystallization, and purification

Self-Contained Processor (SCP)

SCPs optimize volatile production processing and transform materials into dry powder. These processors streamline heat transfer and produce accurate output by leveraging a barrel jacket and hollow counter-rotating shafts. SCPs are closed-system units that may perform multiple processing steps, such as mixing, granulation, and drying, within a single piece of equipment. The closed, integrated system reduces risk of contamination, improves operator safety, simplifies process validations, and enhances process control.

Raw materials are automatically fed into the processor, and the system performs sequential or simultaneous processing operations. SCPs leverage sensors and analytical technology, allowing operators to monitor critical parameters such as particle size, temperature, and moisture. Finished products move directly into downstream equipment or containers with minimal to no environmental exposure.

These integrated systems are ideal for high-potency drugs and clinical manufacturing. Specific applications include:

• High-potency API processing
• Clinical production needing rapid changeovers
• Small-scale production for personalized medicines
• Sterile production requiring minimal contamination risks
• Oral solid dosage manufacturing for tablets and capsules

Continuous Hybrid Reactor (CHR)

CHRs facilitate safe, efficient, and repeatable chemical reactions. These systems leverage heat and vacuum while agitating materials continuously and exposing more surface areas to assist with polymerization, reactions, and the removal of off-gases, moisture, monomers, or volatiles. CHRs excel at mixing, heat transfer, and waste reduction.

CHRs work by combining the features of a continuous mixer and a reactor. A deep vacuum facilitates chemical reactions, degassing, evaporation, drying, and other processes to create pastes, powders, and slurries in a single step. Processing begins as primary reactants move through the feed and injection ports. The appropriate chemical reaction begins inside the barrel, and the vacuum removes volatiles. These capabilities enhance reaction rates and yields, improve process control, and reduce waste and energy consumption.

These systems are ideal for complex syntheses, agile manufacturing environments, and process intensification. Specific applications include:

• Crystallization
• Polymerization
• Process intensification
• Reactions benefiting from continuous flow
• API synthesis

The Benefits of Advanced Mixing Technologies in Pharma

These advanced mixing technologies offer significant advances in efficiency, safety, flexibility, control, and quality. Adopting CP, SCP, or CHR systems can enable faster, safer, and more reliable drug development and manufacturing. These solutions offer benefits like:

• Improved efficiency and productivity: These systems support high throughputs and rapid changeovers while requiring less downtime and leveraging integrated operations.
• Enhanced product quality and consistency: Advanced mixing technologies improve product quality and consistency by ensuring precise control, reducing contamination, and offering real-time monitoring.
• Reduced costs and waste: SCPs, CPs, and CHRs minimize manual cleaning efforts, produce less material loss and optimize reactions.
• Increased safety and containment: Closed systems and integrated systems increase operator safety and reduce contamination risks.
• Greater flexibility and scalability: These solutions are adaptable for various products and support operation scaling.
• Better process control and monitoring: Advanced technologies enable real-time monitoring, automated capabilities, accurate analytics, and integrated sensors to enhance process control and monitoring.

Challenges and Considerations for Technology Implementation

Although advanced mixing technologies offer immense benefits, process development laboratories often face challenges when implementing these solutions. Implementing the best mixing equipment for pharmaceutical manufacturing requires careful consideration and process changes that can make the transition challenging. Key challenges and considerations include:

• Initial investment costs: Advanced solutions often require significant upfront capital, existing system integration, and facility modifications. These costs can be a significant barrier for smaller companies or teams with tight budget constraints. Conducting a thorough cost-benefit analysis can help teams overcome this barrier by allowing leaders to analyze long-term saving potential from reduced waste and improved efficiency.
• Process development and optimization: Teams must also consider process optimization to ensure compatibility with specific production goals and formulations. Organizations may need to conduct extensive experimentation or validation work to support process development. Partnering with experienced equipment suppliers can combat this challenge by ensuring teams have reliable support and guidance for selecting, customizing, and integrating advanced solutions.
• Regulatory compliance: Mixing systems must meet regulatory requirements for pharmaceutical manufacturing, but navigating these regulations can be complex and time-consuming. Companies should implement robust process validation procedures, maintain detailed records of process changes, and leverage digital tools for data management to ensure compliance alignment.
• Training and expertise: Adopting new technologies requires specialized knowledge for maintenance, operation, and troubleshooting. A lack of experience can hinder successful implementation and ongoing performance. Organizations should invest in comprehensive training programs and ongoing education to ensure knowledge transfer.

Improve Mixing Efficiency in Drug Development

Readco Kurimoto is a process development and improvement company that leverages extensive experience and process development testing to transform manufacturing methods. If you require reliable systems for pharmaceutical operations, trust our team to deliver comprehensive solutions. Connect with our team to learn more about our advanced mixing solutions.

Continuous Processing for Personalized Medicine: Enabling On-Demand Drug Manufacturing

Personalized medicine could revolutionize health care. Therapies designed to treat patients based on their genetic conditions, disease subtypes, and biomarkers could boost success rates and improve overall value for patients. Unfortunately, traditional batch manufacturing methods lack opportunities to meet demands and support efficient personalized medicine production.

Thankfully, another solution is on the horizon — continuous manufacturing. Personalized medicine could make health care more precise, patient-centered, and proactive. With the help of continuous processing, health care teams can ensure the right person receives necessary treatments at the correct time. This strategy could transform the health care industry by solving traditional batch manufacturing challenges and enabling on-demand drug manufacturing.

Understanding Pharmaceutical Continuous Manufacturing

While batch processing has a definitive start and end, continuous processing runs nonstop. Raw materials enter mixers at one end of the process, and final products emerge at the other. Manufacturers needing high-volume production or requiring immense quality control and consistency use this method to increase efficiency and improve product safety.

Batch manufacturing produces identical goods simultaneously in batches. As products move throughout the production process, each batch must complete one stage before the next batch can begin. Raw materials only move from stage to stage after all materials in the batch have completed the current stage.

For example, consider a pharmaceutical company needing 100,000 tablets of a pain relief medication. One stage of batch processing could consist of weighing and mixing ingredients, while another stage could involve compressing granules into a tablet press. The final stage would consist of packaging. The company would need to complete several batches to reach the 100,000 tablet goal.

In continuous manufacturing, production occurs without interruption. Using the same example, a pharmaceutical company could rely on continuous processing to feed raw materials at a controlled rate into a mixer. Materials would move through processes like granulation, drying, compression, and packaging seamlessly, producing finished products without stops between stages.

Many businesses opt for continuous processing to increase efficiency and productivity. Continuous manufacturing can enhance process control and improve product quality while reducing operational costs and creating a smaller footprint. To deliver these benefits, continuous processing relies on several key principles:

• Continuous flow of materials: Rather than processing a fixed amount of raw materials, products move through each stage in an uninterrupted stream. This steady flow reduces downtime between steps and enables faster production.
• Real-time monitoring and control: Sensors and analytical tools monitor the production process in real time. Instruments measure critical attributes such as content uniformity, weight, and moisture levels to identify deviations or quality issues immediately.
• Automated processes: Continuous manufacturing minimizes human responsibility in the production process. Advanced automation and software systems control the entire manufacturing process, ensuring consistency, reducing human error, and ensuring rapid response to process changes.

The Role of Continuous Manufacturing in Personalized Medicine

Continuous manufacturing makes it possible to quickly, safely, and efficiently produce personalized medicines. This production method allows you to quickly adjust systems to produce various drug formulations, dosages, and combinations. This means manufacturers can reprogram systems on the fly.  Sometime minor changes can be realized without needing to halt the entire process or simplify cleaning procedures between batches. Additionally, this method allows manufacturers to produce medicines as needed rather than in large, fixed batches.

For example, teams could tailor chemotherapy capsules and tablets, customizing drug type and dosage to a patient’s genetic profile. Antidepressants could be adjusted to optimize efficacy and minimize side effects based on a patient’s needs. For patients needing nonstandard strengths or special formulations, such as children or elderly patients, continuous manufacturing can simplify the production process to ensure precise doses. This method could even aid in treating rare diseases by allowing teams to produce small quantities of small-molecule drugs and enzyme therapies while reducing waste.

This process could also create new opportunities for point-of-care manufacturing and decentralized drug production. With the right equipment and systems, teams could complete personalized medicine manufacturing directly at the location where patients receive care, including clinics, hospitals, or pharmacies. In emergencies, point-of-care manufacturing could enable faster responses to outbreaks or critical needs.

Key Technologies Driving Continuous Processing for Personalized Medicine

Continuous processing enables teams to create recipes that are not possible using batch processing methods. This method relies on advanced technologies to simplify scaling, improve process control, and improve utilization. The tech behind the transformation includes:

• Microreactors: Microreactors are highly controlled reaction vessels that enable precise control over chemical reactions. These instruments make it safe to synthesize potent or complex drugs while ensuring product quality and improving reproducibility.
• 3D printing: These machines allow teams to create customized drug formulations and delivery devices. 3D printers can leverage materials like liquids, gels, and powders to create tablets and pills with customized dosages and profiles.
• Process Analytical Technology (PAT): This suite of real-time monitoring tools consists of sensors, software, and analyzers that track quality attributes. PAT can ensure every dose meets stringent quality standards, even as formulations change.
• Automation and advanced control systems: Integrated hardware and software optimize the manufacturing processes while minimizing the need for human intervention. These technologies ensure consistent product quality and efficient operation by adjusting ingredient feeds, enabling remote monitoring, and coordinating technologies for seamless production.

Benefits of Continuous Manufacturing for Medicine

Continuous manufacturing offers a range of benefits, especially compared to traditional batch processing. Benefits of this method include:

• Improved drug quality and consistency: Real-time monitoring and control systems ensure every medication meets strict quality standards while meeting patient needs. This method reduces variability between batches, minimizing the risk of recalls or defects.
• Reduced manufacturing costs: Continuous processes use energy and materials more efficiently than traditional methods, empowering teams to reduce waste, minimize downtime, and lower utility usage. This method requires less human labor, less inventory, and lower raw material quantities, which can translate to significant cost savings and optimization.
• Faster time to market for new therapies: With real-time quality assurance and rapid scale-up, manufacturing teams can shorten the time to market for new therapies. On-demand manufacturing can also allow teams to respond faster to emerging health threats and, potentially, shorten clinical timelines.
• Enhanced process control and traceability: Advanced technologies and monitoring systems enhance process control and traceability. Manufacturers can immediately detect and correct process deviations, ensure consistent product quality, and maintain detailed records for every produced unit. If an issue arises, this information and technology will make it easier to identify the root cause.
• More sustainable manufacturing: Continuous processing allows manufacturers to create a smaller footprint by reducing waste and enhancing energy efficiency. On-demand production eliminates overproduction challenges and product waste. Additionally, immediate process deviation detection allows manufacturers to further minimize wasted materials.

Challenges of Implementing Continuous Pharmaceutical Manufacturing

Like many new processes and technologies, continuous manufacturing offers exciting opportunities but also presents unique challenges, including:

• Regulatory hurdles and the need for clear guidelines: Many current regulatory frameworks center around traditional batch processing, which means the new concepts of continuous manufacturing may not fit into existing regulations. Uncertainty about regulatory expectations could slow process adoption.
• Technology adoption and integration: This method requires new equipment and technologies. Integrating these technologies with existing IT systems and infrastructure could pose complex and costly challenges. Teams may experience disruptions during transition or lack the resources for the high upfront investment.
• Process development and optimization: Developing robust processes for complex pharmaceuticals is technically demanding. Each drug may require unique parameters, validation approaches, or control strategies. This challenge could result in longer development timelines or demand extensive process modeling.
• Workforce training and education: Although advanced technologies and systems power continuous processing, a skilled workforce is still necessary. Many pharmaceutical professionals may lack the technical skills to understand the data analytics and process controls that drive this production method. Large skills gaps could slow process implementation or increase the risk of errors.

Implementing continuous processing requires overcoming regulatory uncertainty, investing in technology, developing robust processes, and upskilling the workforce. The next few years could see regulation innovation, technology partnerships, workforce development initiatives, and data-driven collaboration to overcome these challenges and unlock the full potential of continuous manufacturing in modern medicine.

The Benefits of Continuous Mixers for Sanitary and Aseptic Processing in the Food Industry

Maintaining the highest standard of safety and hygiene is essential in modern food production, and traditional mixing systems no longer meet these requirements. Traditional systems present significant risks of contamination and exposure to environmental elements, which impact food quality, shelf life, and safety. To overcome these challenges, food production teams are embracing continuous mixers.

Continuous mixers with their inherently closed design are essential in any food application where hygiene, safety, increased volume, and product consistency are high priorities. These mixers are suitable for applications across the industry, from protein shakes to peanut butter. Here, you can learn more about this equipment and its role in revolutionizing the industry.

The Critical Role of Hygiene in Food Production

Food manufacturers have an ethical and legal responsibility to maintain high-quality hygiene standards and control measures. Hygienic food processing is critical for preventing foodborne illnesses and ensuring the safety of every consumer. Without proper hygienic measures, food can face contamination, which can result in:

• Illness: Foodborne illnesses can result from parasites, viruses, or bacteria. Some contamination can cause symptoms like fever or vomiting, but severe cases can result in hospitalization or death.
• Allergic reactions: Cross-contamination with allergens like nuts, dairy, or gluten can trigger allergic reactions in sensitive consumers. Allergic reactions can trigger physical discomfort or life-threatening reactions.
• Physical injuries: Foreign objects like metal, plastic, glass, or hair can end up in food. These objects can lead to choking or other forms of physical injury.
• Economic losses: Companies must recall contaminated food products or otherwise work to remedy the situation. In many cases, these actions lead to financial losses for producers and retailers and lowered consumer trust, which can impact future sales.
• Legal consequences: Food contamination can result in fines, lawsuits, and criminal charges, depending on the severity and circumstances. These legal consequences can impact any individual or company responsible for the contamination.

With severe consequences on the line, stringent process controls are needed. One method for maintaining aseptic and sanitary processing conditions is the use of continuous mixers. Continuous mixers create a sealed and controlled environment for food products, minimizing contamination risks and ensuring high safety and hygiene standards.

Understanding Sanitary and Aseptic Processing

Sanitary and aseptic processing are two methods for keeping food and food-related products clean and safe. Both of these processes are crucial for ensuring product quality, preservation, and shelf life.

The Challenges of Traditional Mixing Systems in Sanitary Environments

Unfortunately, traditional mixing systems make it difficult to maintain the high cleanliness and control standards of modern food manufacturing. These systems come with hidden risks that can compromise food safety and quality.

Potential hygiene challenges associated with traditional mixing systems include:

• Difficult-to-clean areas and crevices: Traditional mixing systems often have complex shapes, joints, and dead spots that can be hard to access during cleaning processes. Food residues, like liquids and powders, can become trapped in these crevices and provide the nutrients for molds and bacteria to grow. Incomplete cleaning can allow these microorganisms to multiply between production runs.
• Potential for microbial growth: Moist environments are prime locations for microorganisms to thrive. With inadequate cleaning measures, equipment can become a breeding ground for pathogens. This microbial growth can lead to food spoilage, impact flavors, or result in foodborne illnesses. Additionally, some microbes can form protective layers, making them even harder to remove in the future.
• Risk of cross-contamination: Traditional systems tend to require manual ingredient additions and product removals. Food environments that use the same equipment for different products can face challenges regarding contamination. Even trace amounts of allergens can trigger severe consumer reactions, posing serious health and legal risks.
• Exposure to the environment: Open or partially open mixing systems can allow air, dust, insects, and other contaminants to enter the mixing process. Operators near an open system could also introduce hair or skin cells that impact food quality. These airborne particles and foreign objects can lead to spoilage or consumer illness.

Continuous Mixers: Safe Food Processing Equipment

A modern solution has arisen to revolutionize food processing. Continuous mixers are purpose-built for food safety. This equipment leverages the following features to minimize contamination risks and enhance hygiene:

• Closed and sealed designs: The entire mixing process occurs within a closed and sealed vessel. This design prevents contaminants from entering the mixing process, greatly reducing the risk of all types of contamination.
• Smooth, crevice-free surfaces: These modern mixers feature smooth, often rounded surfaces that require minimal joints or welds. This crevice-free engineering eliminates challenges associated with cleaning hard-to-reach areas and reduces the risk of microbial growth in crevices.
• Use of food-grade materials: ⁠⁠⁠⁠⁠⁠⁠Food-grade materials are nonreactive, corrosion-resistant, and easy to sanitize. Every part of the continuous mixer that comes in contact with food utilizes materials approved for food use, such as stainless steel. The stainless steel can be polished to eliminate rough surfaces promoting bacterial growth.  Leveraging these materials eliminates risks associated with rusting, chemical leaching, and physical contamination that impact food quality.
• Clean-in-Place and Sterilize-in-Place capabilities: Continuous mixers leverage automatic cleaning and sterilizing systems that ensure thorough cleaning and sterilization between batches. These systems maintain hygienic practices while minimizing downtime and reducing human labor.

Clean-in-Place (CIP) and Sterilize-in-Place (SIP) Systems

CIP and SIP systems play a critical role in continuous mixers. These systems automate and simplify cleaning and sterilization processes to reduce downtime, ensure reliable cleaning, minimize manual labor, and improve cleaning validation.

Key Benefits of Closed Mixing Systems in the Food Industry

More and more food manufacturers are choosing continuous mixers to overcome the challenges of traditional mixing systems. These systems deliver immense benefits like:

• Improved food safety.
• Reduced contamination risks.
• Enhanced hygiene and sanitation.
• More effective and efficient cleaning.
• Lowered operating costs due to reduced cleaning time and water usage.
• Increased productivity and throughput.
• Boosted consistency in product quality and conformity.
• Operator safety
• Reduced floor space
• Lot tracing capabilities
• USDA / 3A / FDA compliant

Applications of Continuous Mixers in Various Food Sectors

From dairy to sauces, continuous mixers aid in versatile applications across the food industry. Some common examples include:

• Dairy processing: Dairy processing teams can use continuous mixers to mix milk, cream, cheese curds, yogurt, and flavored dairy drinks.
• Beverage production: Teams producing juices, energy drinks, alcohol, plant-based beverages, and soft drinks can use mixers to dissolve sugars and blend vitamins into beverages.
• Sauce and dressing manufacturing: Continuous mixers can emulsify oil and water phases, disperse spices, and ensure uniform consistency when producing mayonnaise, ketchup, barbecue sauces, and salad dressings.
• Ready-to-eat meals: Stews, gravies, soups, and meal components can benefit from even seasoning and particulate distribution from continuous mixers.
• Infant formula production: Mixing vitamins, minerals, and milk powders in a continuous environment can help infant formula producers meet strict safety standards.
• Pharmaceutical food and nutritional supplements: Pharmaceutical and nutritional teams can use these mixers to ensure homogeneity and prevent cross-contamination in sensitive products like protein shakes and medical products.
• High-viscosity mixing applications: Continuous mixers can leverage high-viscosity mixing techniques necessary to handle sticky or thick products like doughs, peanut butter, chocolate spreads, and pastes.

Ensure Product Quality and Safety With Readco Kurimoto

At Readco Kurimoto, we help industry leaders replace traditional manufacturing methods with innovative solutions. Our experience with food and confectionery mixing technology has empowered us to craft solutions that streamline mixing, evaporating, reacting, and crystallizing processes. Our Continuous Processor is the solution you need to meet the most stringent requirements. Tell us more about your needs to discover how we can benefit your business.

How Continuous Processing Can Improve Pet Food Manufacturing

The pet food industry is strong, and consumer spending on pets continues to rise. A strong market leads to greater competition and market saturation — to remain successful, pet food manufacturers need to keep up with demand while overcoming hurdles like supply chain disruptions, labor challenges, and recalls.

One way they can do that is by investing in continuous processing equipment. Continuous processing in manufacturing means materials flow continuously through the production process from raw materials to finished product. This differs from batch manufacturing processes in many ways, most notably in its ability to facilitate nonstop production.

In pet food manufacturing, continuous processing is an effective way to scale up production and decrease labor cost, without compromising on quality. Learn more about how to improve pet food manufacturing efficiency with continuous processing.

The Challenges of Traditional Pet Food Manufacturing

The traditional batch processing method for pet food manufacturing involves gathering the ingredients needed for a single batch, mixing, preparing, and cooking them, and then further processing and packaging. Once one batch is complete, the process starts again for another batch. This process is effective for small-scale operations or ones that require switching between multiple different recipes, but it may not work well for high-demand environments.

A few limitations and challenges associated with traditional batch processing include:

• Inconsistent product quality: Traditional pet food manufacturing transitions from one batch to another, meaning there’s more room for error. Stopping and starting production can cause slight variations in ingredients, mixing, cooking and processing that lead to inconsistent product quality. In cases like prescription pet food diets, precise control over ingredients is essential.
• High labor costs: Batch processing is not automated, requiring more costly manual labor. Staff need to supervise the incorporation and mixing of ingredients, monitor the cooking process, and then transition back to the first step for the next batch.
• Long production cycles: Because each batch is handled separately, batch processing often results in longer production cycles. When each batch takes longer to produce, it can impact efficiency and decrease output.
• Difficulties in scaling up production: While batch processing is effective for smaller operations, it makes increasing production difficult for large-scale manufacturing.
• Potential for contamination: Batch processing requires the transfer of materials from one process to another, increasing the safety risks. Meanwhile, continuous processing happens in an enclosed system, reducing the chances of contamination.

How Does Continuous Processing Improve Pet Food Manufacturing?

With the pet food industry booming, manufacturers need to add product lines, diversify offerings, and increase operations to satisfy demand. Continuous processing technology is essential to stay competitive and meet these increasing demands.

The benefits of continuous processing in pet food manufacturing include:

Improves Product Quality and Consistency

Continuous processing improves pet food manufacturing by ensuring consistent mixing, heating, and cooling, leading to uniform product quality. Precise control over process parameters, such as temperature, shear, and moisture content, is the only way to produce a consistent product at a large scale.

Even small variations in ingredients or cooking can impact the final product. For example, binders — like starches, flour, and proteins — play an important role in pet food quality by controlling shrinkage, moisture, and fat loss during processing. Incorrectly measuring the binding agents in one batch can result in a product that falls apart during packaging.

When pets and pet parents notice decreased product quality, it also leads to higher requests for returns and decreased customer satisfaction. Consistency is key to keeping customer loyalty and maintaining a positive brand reputation.

Increases Efficiency and Throughput

Batch-to-batch transfers require higher cycle times and reduce throughput. Meanwhile, continuous processing creates a more streamlined and efficient production process. Raw ingredients are continuously fed into the production line, which means a continuous output of finished products.

With automated process control and monitoring, any defects can be caught early. Rather than affecting an entire batch and halting production, staff can quickly address the problem while production continues.

Reduces Labor Costs

Increasing production while reducing costs is vital for continued success in any competitive market. For the pet food industry, continuous processing reduces the need for manual labor, allowing facilities to retain fewer staff and leading to significant cost savings. Employees can instead focus on more essential duties while the equipment operates independently. Continuous processing enhances safety for employees by eliminating lifting of heavy bags of materials. The closed design of a Continuous Processor keeps employees safe from moving machine parts and reduces slippery product spills on the manufacturing floor.

Enhances Food Safety

Continuous processing minimizes the risk of contamination by reducing the number of open transfers and handling steps. Using a closed-loop system, the raw ingredients are fed into the system at the first step and require minimal to no handling afterward. This process makes it easier to follow pet food safety regulations and demonstrate compliance during inspections.

Continuous processing machinery can implement automated cleaning and sanitation procedures, decreasing the risk of contamination. This process also allows for a higher degree of monitoring, as staff can quickly identify potential risks before they become problems.

Improves Resource Utilization and Sustainability

Continuous processing reduces waste and improves the utilization of raw materials, water, and energy. With more streamlined processes and higher efficiency, it cuts down on energy and resource consumption. Compared to batch processing, continuous manufacturing has a lower environmental footprint and leads to less waste.

Continuous Processing Technologies for Pet Food Manufacturing

Continuous processing can work for various pet food products, including:

• Dry kibble.
• Canned wet food.
• Pouched wet food.
• Freeze-dried foods.
• Treats like biscuits, chews, and jerky.
• Certain pharmaceuticals and nutraceuticals.
• Adding blueberries, peas, or protein chunks into the above items to improve visual appearance

Equipment and machinery that pet food manufacturers use include:

• Continuous mixers: Continuous pet food mixers ensure consistent and homogeneous mixing of ingredients, with high speed and excellent consistency. These systems also offer critical sanitary processing advantages, ensuring food safety compliance.
• Continuous extruders: Single-screw and twin-screw generate high pressure which cook, shape, and texturize pet food products. Twin screw continuous mixers excel at dispersion and often improve total throughput when used to feed an extruder.
• Continuous dryers: Dryers used in pet food manufacturing include twin screw continuous reactors, fluid bed dryers and belt dryers. They remove moisture from pet food products to improve shelf life.
• Continuous coating systems: These systems apply coatings to pet food products to enhance flavor, appearance, and nutritional value.

Ready to Transform Your Pet Food Manufacturing?

Readco Kurimoto produces the best continuous pet food manufacturing equipment, enabling you to scale operations and maintain the high quality your customers expect. Our machines comply with stringent standards set by the Food and Drug Administration (FDA), the American Society of Mechanical Engineers (ASME), and the Association of American Feed Control Officials (AAFCO).

Readco Kurimoto’s continuous processor equipment is designed to withstand tough operating conditions while ensuring homogenized mixtures. Our process development laboratory is committed to ensuring your equipment operates as intended, performing extensive testing to verify it can operate at scale and integrate seamlessly into your operations. We also improve product tracing with advanced controls for input monitoring.

Tell us about your requirements, and we’ll find a solution that suits your operations.

What Are Continuous Hybrid Reactors, and How Do They Work?

There are many approaches to manufacturing, ranging from repetitive to discrete processing. One of the most common methods is continuous processing, where production continues without stopping and creates the same products repeatedly. This option has many advantages, including greater control and efficiency. Depending on the application, manufacturers can use different continuous reactors to facilitate the process.

While various industries can benefit from continuous processing alone, incorporating other methods can be beneficial. A continuous hybrid reactor (CHR) offers the best of both options in one machine. Learn more about continuous processing versus batch processing, what CHRs are, and how different industries can apply them in our guide.

Understanding Continuous Processing

In continuous processing, production is ongoing and begins with raw materials. Once the materials are fed into the system, they go through the manufacturing process without breaks, emerging at the end as final products. This approach differs from batch processing, where the production run is broken down into stages using a containerized batch mixer. Every stage must be completed before the batch can move on to the next.

The main advantage of continuous manufacturing is that it supports high-volume production. This process relies on a continuous processor system, which comprises highly automated equipment that creates greater consistency and efficiency.

For example, in the food industry, continuous processing improves quality control, food safety, and flexibility — the process is constantly being monitored to identify issues and ensure accuracy.

One type of continuous processor is a continuous reactor. This equipment is specifically designed for carrying out chemical reactions in a continuous flow, facilitating chemical transformation. Some examples of  reactors include:

• Continuous stirred-tank reactor (CSTR): CSTRs are often used for liquid-phase reactions. A CSTR mixes the reactor’s contents perfectly, resulting in a uniform composition throughout the vessel. As reactants are continuously fed into the reactor, products are withdrawn, and the effluent stream is removed.
• Microreactor: Often used for fast reactions, high-throughput screening, and reactions involving hazardous materials, microreactors have very small channel dimensions. This small size creates a high surface area-to-volume ratio. As a result, the continuous processor has effective heat transfer and precise control over reaction conditions.
• Plug flow reactor (PFR): These reactors generally offer higher conversion rates than CSTRs for the same reactor volume. In a PFR, the fluid flows through a cylindrical tube or channel in a “plug” or “slug” flow pattern, with minimal axial mixing. The fluid’s composition changes as it flows.

Today’s continuous reactor systems feature static mixers, dynamic mixers, ultrasonic mixing, and similar components to improve mixing efficiency and mass transfer. For example, in biodiesel production, novel reactors are being designed to enhance mixing rates with a multifunctional process intensifier. These continuous reactor innovations are helping companies benefit even more from continuous processing.

What Is a Continuous Hybrid Reactor?

A CHR combines the features of both a batch reactor and a continuous reactor. It uses a deep vacuum to facilitate chemical reactions, giving a high level of control over residence time, heat transfer rate, and other reaction conditions. Depending on the use case, a CHR can facilitate a chemical reaction, evaporation, devolitolization, degassing, drying, and other processes to create powder, flake, paste, or slurry in a single step.

This type of self-contained processor has twin, co-rotating, hollow paddle shafts set in a closed, jacketed barrel. It generally has the following interior and exterior components:

• Interior: Primary vacuum ports, secondary vacuum ports, an area under vacuum, a process area, and a product discharge area
• Exterior: Vacuum ports, a material feed inlet, multiple liquid injection locations, vacuum/vapor removal, cored shafts, a jacket heating and cooling medium, and a product discharge area

As processing begins, the primary reactants are continuously inserted through the feed and injection ports. Once they’re inside the barrel, the chemical reaction begins, and mixing and heat enhance the process.

Then, the vacuums remove byproducts, and the final product is discharged. The process happens continuously as the reaction takes place.

Continuous hybrid reactor benefits include enhanced control, improved yield, and greater flexibility compared to traditional batch reactors. This machinery excels at deep vacuum, heat transfer, mixing, reactions, and waste reduction.

Applications of Continuous Hybrid Reactors

Manufacturers in many industries use CHRs in their process development laboratories, and production lines. This device’s main applications include processing high-viscosity, temperature or oxygen sensitive materials, such as sealants.

See how an advanced continuous hybrid reactor can be applied in various industries:

Pharmaceuticals

When synthesizing active pharmaceutical ingredients and their intermediates, companies require controlled environments for product quality and consistency. CHRs excel at providing precise control over reaction conditions. As a result, variability is minimized between batches. Additionally, a CHR’s smaller reaction volume can improve safety, especially when dealing with highly reactive or unstable processes. Learn more about continuous processing solutions in the pharmaceutical and nutraceutical industries.

Chemicals

Those working with high-viscosity chemicals know they can be difficult to handle. A CHR makes that easier by processing “sticky” chemicals, even in a deep vacuum environment. Examples include polyester, acrylic resins, polyamide resins, and vinyl acetate resins. CHRs also provide high levels of consistency across batches and reduce the creation of unwanted by-products.

Food and Beverage

This industry requires high levels of quality control and flexibility. CHRs are ideal for fermentation, drying, and dehydration, providing control over reactions and temperature. Compared to batch processing, CHRs can provide food and beverage businesses with greater efficiency.

Other Industries

Many other industries can use CHRs to achieve better quality control and flexibility. For example, CHRs could be used in the wastewater treatment process by continuously cultivating microbial cultures to break down pollutants. CHRs can also produce consistent mixtures, which is ideal for creating engineered fuels and composites.

The Continuous Hybrid Reactor From Readco Kurimoto

Readco Kurimoto’s continuous hybrid reactor is built to deliver safe, efficient, and repeatable chemical reactions to suit your processing needs. Through high vacuum capability, high-temperature-rated construction, and other elements, our proprietary design can help you transform raw materials using the best aspects of both continuous and batch processing.

Based on your use case, you can make continuous hybrid reactor upgrades to suit your specifications. For example, the paddle can be sized and changed as needed to support various industrial applications, which makes scaling your operations easier. The CHR’s internal volume can also be built up to 978.6 cubic feet. Whether you are in need of drying or degassing capabilities, or something in between, our CHR is built for the task.

Learn more about our CHR and other processor and mixer products.

Why Choose Readco Kurimoto?

At Readco Kurimoto, we have decades of experience helping companies improve their products with advanced continuous mixing machines. With extensive knowledge in process development testing, we have partnered with numerous small and large companies across industries, such as food, chemical, specialty materials, and building.

If you are searching for high-quality, reliable continuous processing equipment, our team is here to assist. Contact us today to get started or discover more about the latest continuous hybrid reactor technology.

Continuous Processing of Solid-State Batteries

Identifying Challenges of Mixing Solid-State Battery Materials

Working with solid state battery blends, like liquid electrolyte applications, presents its own unique set of challenges.  When mixing a typical LIB slurry with liquid electrolyte, the electrolyte can be imparted into the active materials much easier than dry processing.  When using solid electrolyte, it takes a specialized process to disperse the powders and binders without leaving voids.  These voids can cause increased ionic tortuosity, which adversely affects the performance of the battery.  The pathways for the ions to pass between the electrodes are compromised by this occurrence.  Readco’s Continuous Processor is suited very well to provide excellent results in this environment. 

Machine Capabilities Needed for SSB Mixing

When looking at continuous processing for SSB electrode mixing we are working with two main methods of processing, which are binder fibrillation and extrusion.  These processes demand certain performance criteria from a continuous mixer.  Some of the crucial capabilities necessary are precise shear control over a broad range of intensity, excellent dispersion at low or high shear, temperature control during mixing, precise shaft speed control, short heat history with minimal necessary residence time, and the ability to do all of this without imparting residual metal into the material. 

Identifying SSB Mixing Methods

 Fibrillation of PTFE can be tricky but the ability to control the parameters makes this a bit less daunting.  There are many other binders being used or tested in the industry as well.  It comes down to the ability to manage the inputs to achieve the desired results.  Extrusion is an interesting method of producing SSB materials.  Extruders can perform many of the parameters for mixing SSB materials very well.  They are capable of heat control, high viscosity management and shear.  There are, however, some drawbacks to using an extruder for this process.  Inherently extruders use a long L/D to achieve complete dispersion.  They also generally use the materials they are mixing to keep the elements from contacting the barrel walls.  These factors can lead to longer than optimal residence times and exacerbated metal entrainment due to metal-to-metal contact. 

A Better Solution for SSB Mixing

Twin screw continuous mixers like our Readco Continuous Processor go about the job a bit differently and check the SSB processing demands boxes.  The Readco Continuous Processor (CP) has finite control over shear with a practically unlimited number of mixing element configurations. Gentle kneading to extremely high shear is attainable.  High viscosities are not a problem either with 2,000,000 Cp considered medium work.  Another attribute of the Readco CP is excellent dispersion at low shear.  An example of this is the ability to completely blend carbon nano tubes into other powders without damaging the tube’s structure.  The CP has an ASME certified jacketed barrel for heating and cooling.  Shaft speeds of 10 to 400 RPM are possible for the CP.  The CP trades time for intensity, thoroughly dispersing and mixing in a short L/D and residence time.  To top it all off, the CP shafts are supported on both ends so no metal-to-metal contact occurs and can be designed with coatings or alternative materials to eliminate metal entrainment while mixing.  So, you have all this capability along with excellent scalability.  After all, you are in business to be profitable and need maximum efficiency with uncompromised quality.  That is why we exist, to bring that type of value to your business. 

Proof of Concept  

Readco takes the risk out of going continuous by working side by side with the customer to develop your process in our laboratory located in York, PA.  Lab testing at Readco is a very collaborative process.  We create a pilot plant scenario with feeders, pumps, and one of our versatile laboratory prepped 2” or 5” Continuous Processors.  The customer leaves with proof of concept, and a detailed lab test report containing all the data needed to recreate the process in their plant.  Testing can also be conducted at the customer’s site utilizing one of our rental units, and support from the experienced Readco lab team.  

Contact Readco Kurimoto for your Battery Mixing Needs

Hopefully this information helped to bring into focus the capabilities of the Readco Continuous Processor, particularly in the SSB realm.  We look forward to the opportunity to help you with your battery processing needs.  Thank you for taking the time to read this! 

Corporate Social Responsibility

Being surrounded by acres of farmland in south central Pennsylvania has its benefits – beautiful scenery, historic parks, mild winters, and thoughtful neighbors to name a few. At the end of each summer, the farmer down the street from our manufacturing warehouse brings by several dozen ears of corn. Enough actually, for each member of Team Readco to take home a dozen or so. We’re talking good fresh local sweet corn, the kind you might buy from a roadside stand; instead of off a truck, unloaded from a plane, and harvested last week in some far away place. Unlike the much traveled corn, the carbon footprint of this local transaction is negligible.

A few months back, we had a sales pitch meeting with a [high profile] cosmetics company. The idea discussed was to utilize our evaporative processor to reclaim and reuse waste materials created from mascara production – specifically carbon black. Carbon black is a primary ingredient from which mascara is made and to which pigments are added. Without going too much into detail on how mascara is made – there is a liquid waste created from the process which contains residual carbon black that did not make it into the final product. Through a continual evaporative vacuum process, this carbon black can be separated from the liquid and added back into the product stream. Having recently enacted a ‘zero landfill’ initiative, this company was interested in ways to reclaim waste materials used in mascara production. Government regulators stipulate rules, methods, and quotas for industrial production, resource allocation, and by-product and waste disposal; however, what drives these types of initiatives? Consumer demand? Profit maximization? How about Corporate Social Responsibility?

Corporate Social Responsibility is defined as a corporate initiative to assess and take responsibility for company effects on the environment and impact on social welfare. The term generally applies to corporate efforts that go beyond what may be required by regulators or environmental protection groups. Also referred to as ‘Corporate Citizenship’, activities may involve incurring short-term costs that do not provide an immediate financial benefit to the company, but rather promote positive social and environmental change. So what does “positive social and environmental change” mean to the bottom line? Well, there are two aspects to consider in regard to Corporate Social Performance 1) initiatives that affect primary stakeholders which studies show positively affects market value, 2) social/environmental issue initiatives which may have the opposite effect. Reusing, recycling, and reclaiming can pay long-term dividends; whether in social/environmental impact or corporate value maximization. Smart business managers will seek to reconcile these two factors through careful measurement and analysis – attributing short-term losses to long-term investment.

Getting back to the farmers corn. We don’t buy this corn, nor is this some type of medieval food rent; instead we help feed the farmers pigs! Almost every week in our pilot plant, we mix, extrude, blend, and process multiple ingredients for clients looking to better their production process and gain a competitive advantage. While most of this processed material is taken back to be analyzed by our customers, much of it is left behind. The versatility of our processor is nearly limitless; however, much of what goes into (and then out of) our machines is food. These left over food items are then picked up by/delivered to our neighbor who feeds the edible mixture to his pigs and in return, we enjoy farm fresh sweet corn!

Investopedia. (2014). Corporate Social Responsibility. Retrieved July 2, 2014, from Investopedia: http://www.investopedia.com/terms/c/corp-social-responsibility.asp

Achieving a Healthy Bottom Line

It is no secret that as the world gets smaller; the people who inhabit it are getting larger. Our jobs and our lifestyles, no longer warrant the inexpensive high calorie diets so readily available to most of us. Developed industrial nations especially, are prone to sedentary lifestyles wherein most people spend their 9 to 5 behind a desk versus behind a plow. While exercise and a well-balanced is diet is still the best prescription for healthy living, often time’s fresh fruits and vegetables are often out of reach – physically for city dwellers living in food deserts, and/or financially for lower income families.

We are all as guilty as the next guy when it comes to eating right or exercising regularly. Family, work, friends all occupy our time. Fresh foods can cost more, may take longer to prepare, and have a shorter shelf life. We find ourselves between soccer games and commutes grabbing a quick bite or snack to tide us over until the next meal. However, instead of grabbing that bag of chips, what if we reached for something with more substance and nutritional value.

The food industry (often in conjunction with the federal government) has for decades looked for ways to incorporate vitamins and minerals into our diets. Iodine in salt, vitamin D in milk, fortified cereals, and fluoridated toothpastes are some examples of early offerings. Vitamin supplements and electrolyte replacing liquids have been around for decades. Vitamin enhanced water and protein rich smoothies are a few recent examples of ‘enhanced’ products from the consumer food industry as well as many entrants from the rapidly expending nutraceutical industry.

What is nutraceutical? Is that even a real word? Well yes, not only is it a real word – it’s a billion dollar industry! The term nutraceutical is a combination or ‘portmanteau’ of the words nutrition and pharmaceutical and is defined as a “… fortified food or dietary supplement that provides health benefits in addition to its basic nutritional value.”

A lot of work goes into sourcing ingredients, extracting nutritional components and processing raw material into a usable form – whether it’s a dry powder, a paste, or liquid slurry. Extraction can be done in a variety of ways including ‘old fashioned’ methods of drying; grinding; and pressing, to new techniques that may include ultra-sound and microwave assisted extraction; accelerated solvent extraction, and my favorite – supercritical fluid extraction. Continuous evaporation and drying machines – such as the Readco SCP – efficiently utilize heat and vacuum to separate liquids from solids so that one or both of the outputs can be utilized or recycled.

A common method in supplement and nutraceutical manufacturing after extraction is to mix ingredients together in what is known as a V Blender – essentially a “V” shaped mixing apparatus that contains an impeller and spins on a horizontal axis. V-blenders are common because they are relatively inexpensive. However, inefficiencies in the design as well as those inherent to batch mixing eventually get passed down along the supply chain – ultimately being paid for by the end user. Unlike a V blender, or batch mixer in general, a continuous processor allows for an almost infinite number of impeller or mixing arrangements based on the paddle and screw arrangement. Additionally, processors with VFD – variable frequency drive – motors are better able to control throughput. Also, many continuous processors are self-cleaning and can mix both wet and dry ingredients in the same mixing chamber.

Utilizing continuous extraction and processing in the nutraceutical industry can achieve tremendous economies of scale -which any executive can tell you – leads to a healthier bottom line. Something to think on the next time you reach for that vitamin and mineral packed health bar made with extracted ingredients from the latest tropical island wonder fruit and infused with the nectar of that unassuming desert cactus flower.

Supercritical Fluids (SCF) & Supercritical Fluid Extraction (SFE). University of Illinois, Chicago. http://tigger.uic.edu/~mansoori/SCF.and.SFE.by.TRL.at.UIC.pdf. Last viewed 11/3/14

Nutraceutical. http://www.merriam-webster.com/dictionary/nutraceutical. Last viewed 10/16/14

Chocolate Lover’s Edition

With Valentine’s Day upon us, we thought we’d share some thoughts on most everybody’s favorite confection – chocolate! While it’s true that many more confectionaries can and are made using continuous processors, we think chocolate deserves its very own forum. We will discuss a bit of the process science involved; some health facts, and finally a little history just for some fun.

Below in italics are some excerpts on chocolate from an article on chocolate conching as seen in Food Processing Magazine.

Process Science

The powder used to begin conching derives from a set process in which cocoa beans are roasted, crushed, blended and then ground. During grinding, the “nib” – or meat – of the bean liquefies into a paste known as cocoa liquor, which contains cocoa butter, a natural fat, and the dry matter of the bean. The cocoa liquor is then mixed with sugar (and milk for milk chocolate) and refined to a powder.

In simple terms, conching transforms chocolate mass from a powdery aggregate to a fluid. “Traditionally, it’s been associated with low-shear operations of long duration, though shear rates have increased over the years to shorten the process” (Ziegler  2003).

First, let’s define what low-shear operations are. Low-shear operations in regard to conching refer to the slow process wherein some sort of mixing and/or rolling device kneads a ground chocolate paste until the desired flavor, texture, and consistency is achieved. This process in a non-continuous machine takes anywhere from several hours to several days – depending on the desired quality. Continuous processing outputs can achieve the same results for high-quality chocolate in a matter of minutes.

Health Facts

Few confections are as shrouded in myth, mystery and misunderstanding as chocolate. It’s sinfully delicious, to be sure, but is chocolate really as guilty a pleasure as it’s purported to be? Apparently not, in recent years, science has done much to melt some of the myths surrounding chocolate and health.

Take the assumption that chocolate raises cholesterol. Although saturated fats typically increase cholesterol in our bodies, stearic acid, the main saturated fat in chocolate, does not raise blood cholesterol levels. In fact, studies suggest that chocolate not only doesn’t raise low-density lipoprotein levels (LDL or “bad cholesterol”), but actually increases high-density lipoprotein levels (HDL or “good cholesterol”).

To the added advantage of chocolate’s health benefits is the fact that the Continuous Processor is a closed system which utilizes USDA sanitary standards. Batch mixing on the other hand is an open system with multiple opportunities for foreign materials to enter into the process stream.

Chocolate History

Chocolate was originally enjoyed in liquid form by first the Aztecs and Mayans of the per-Columbian America’s, and then by the Spanish, English and French during the age of exploration. It wasn’t until mid-1800 that chocolate was made for eating, and another 25 years until milk was added to balance the bitterness of the bean. 

Another milestone in chocolate’s sweet history is that Readco processors have been continuously churning it out for over 40 years!

Gregerson, J. The low – or is it high? – shear of a process known as conching helps enhance the flavor and texture of chocolate. Or does it? Food Processing Magazine. (2003)

Daylight Saving

Does Continuous Processing have its roots in Daylight Savings?

Among many things, Ben Franklin is credited with the concept of Daylight Saving Time. It does appear rather Franklin like to want to ‘make the best use of daylight hours.’  Franklin witnessed firsthand the productivity and innovation inspired by the industrial revolution taking place in England in the early 18^th century. He understood the economic advantage that efficient productivity could bring to world markets and wished to emulate British ingenuity in his commonwealth of Pennsylvania.

“You may delay, but time will not” Ben Franklin

Continuous processing utilizes innovative technology capable of an infinite number of process set ups to produce virtually any mixture or compound in a fraction of the time compared with standard batch mixing.

As it turns out, the city of York, PA not only served as the provisional capital of the Second Continental Congress after the British army occupied Philadelphia, it has served as a major manufacturing center since the early 19^th century.  In 1825, the first iron steamboat in the United States is built in York. Six years later, the first coal locomotive in the United States is built in York. In the early part of the 20^th century, York becomes one of the nation’s top automobile manufacturers and is currently home to a major Harley-Davidson motorcycle plant.  

“Time is money” Ben Franklin

In manufacturing there aren’t any other ways to process material faster than continuous.  Even a smaller machine is capable of continuously processing 2,000 lbs. of material per hour.

In keeping with the rich manufacturing history of York, PA and in the spirit of increased productivity and efficiency, Readco developed the continuous processor in 1961 as an efficient alternative to batch mixing.  Many of which have been in operation for over forty years.

                                      “Energy and persistence conquer all things” Ben Franklin

What is more persistent than continuous operation? Continuous Processing means energy and persistence in and consistency and reliability out.