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

Proof of Concept Testing in Lancaster K1 Lab Mixers

Lancaster Products is dedicated to optimizing our customers’ mixing processes and recipes. This 3 part video series will focus on our on-site lab and testing capabilities. In this first video, we demonstrate proof of concept testing with a chicken litter material for a fertilizer product.

We use our K1 lab mixer during these initial tests. We load the K1 mixer with the test material and then program the steps and feeds. After the mixer begins, we add a liquid binder to it to allow the material to agglomerate into granules or larger pellets.

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Rotary Table Feeders Turn Batch Processing to Continuous Batch Processing

Rotary table feeders act as a critical piece of equipment in Lancaster Mixers continuous batch processing lines. They provide a mechanical conduit to continuously meter and feed materials from each batch of material processed to the next process in line. The cone and cylinder over the table is used as a surge hopper to temporarily store the material batch while the table feeder continuously discharges the material. Their role may seem simple compared to the processing equipment they’re connected to, but is significant to maintaining continuous throughput and ensuring overall system performance.

Lancaster Products’ high shear mixers process materials in batches which allows for tight control over the physical properties of the end product and thus, higher on-size, homogeneous yields. Most batches are processed completely and ready for discharge in a matter of minutes. By positioning a Lancaster rotary table feeder under the mixer’s discharge chute and feeding product downstream to the next piece of equipment, the batch processing is converted to a continuous process.

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