We are often met with skepticism when informing prospective customers that Lancaster Products’ high shear “mixers” can actually pelletize materials more efficiently than the “pelletizers” they either currently use or are considering for use in their materials processing applications. It’s always interesting to see the expressions on people’s faces not only when we demonstrate the pelletizing capabilities of our mixers, but also the improved yields and reduced processing times of our mixers vs. standard pelletizers. In fact, because our mixers are so commonly used to pelletize, some customers refer to Lancaster Mixers as “Pellixers”. So, what are the difference between mixers and pelletizers and how can a Lancaster Mixer actually work better than a pelletizer?

It’s important to point out that, true to their name, our high shear mixers can and are used very successfully in mixing-only applications. In fact, for applications where strict homogeneous mixtures are specified, there is no better solution on the market than a high shear mixer from Lancaster Products. Extrusion-type pelletizers, on the other hand cannot be used to mix products. Disc or pan-type mixers transform raw materials into pellets by imparting a snowball effect where pellets are ‘layered’ rather than ‘mixed’ together. This action does not necessarily satisfy strict specifications for homogeneity.

Our high shear mixers are ideal in processes that require both mixing and pelletizing because both actions are satisfied in one process inside one machine. When using extrusion or pan type pelletizers, ancillary equipment such as mixers and conveyors must also be purchased to accommodate the mixing and transportation of materials into the pelletizer. This not only adds cost to the equipment purchase price, but often increases the footprint and requires more man-hours to maintain, service, and operate the equipment.

Two of the primary requirements in almost all pelletizing processes are to generate pellets that are homogeneous in both size and material composition. The counter-current mixing action of our high shear mixers imparts direct energy into the mixing process, where an equilibrium of force is maintained across every particle in the mixture being agitated.

Lastly, our high shear mixers use independently driven tooling, which allows for changing of speeds of each component and interchangeable tooling. This affords customers greater versatility in satisfying capabilities such as types of materials processed, yield types (mixtures, pellets, conglomerates, etc), and overall control of the process. For companies that process a diversity of materials, the cost of purchasing one high shear mixing machine to handle multiple materials and processes is more easily justified.

Contact us today to discuss how our high shear mixers can better solve your pelletizing needs.

717-273-2111

Lancaster Products
920 Mechanic Street
Lebanon, PA 17046

Local: 717.273.2111
Toll Free: 800.447.7351

Email: [javascript protected email address]

Office Hours:
Mon - Fri: 8:00 am - 5:00 pm

Maintenance Bulletin: Rotor Wear and Replacement in Industrial Mixers

The high-speed rotor is the primary mixing and pelletizing tool in industrial high shear mixers and in many ways, it is the most utilized part of the machine. But rotor wear is also a good leading indicator of your machine’s overall operating condition as it is a direct result of material processing. Chances are, if the rotor is worn, there is other preventative maintenance to be done.

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What Preventative Maintenance Will Prolong the Life of My Mixing Equipment?

Industrial mixers are built to run and withstand a great deal of abuse, however, regular preventive maintenance efforts can help keep your mixer running like new. The two most critical components that can affect the life of your mixer are lubrication and inspection of working tools. Below is an overview of the in-depth information provided in our full maintenance schedule available for download below.

 

Lubrication: Proper lubrication can encompass multiple areas on your mixer, not just the shaft seals of the mixing tool. Lubrication of all seals as well as drive gears, discharge valves and other locations where bearings are utilized is the best way to extend the life of your mixer. Automated lubrication systems on larger production mixers help maintain proper lubrication intervals, but regular visual inspection should be scheduled to assure the system is working properly.

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