Custom Extruders by Material

The Bonnot Company, founded in 1891 in Akron, Ohio, designs and builds custom single-screw extruders for a wide range of materials, including activated carbon, catalyst supports, clay, rubber, hydrocolloids, sealants, firelogs, rodenticides, and food products. Bonnot also tests new and unusual materials in its in-house test room to develop custom extrusion solutions.

Materials We Extrude

  • ABOUT OUR MATERIALS

    Since 1891, The Bonnot Company has built custom single-screw extruders in Akron, Ohio for a wide range of materials. We have existing, proven designs for bulk molding compound, activated carbon, catalyst pelletizing, clay, cooking, cold forming, food forming, hydrocolloids, laboratory applications, rubber, rodenticide, and sealant extrusion.

    Each extruder is engineered to the material it runs. We customize screw geometry, barrel length, hopper opening, materials of construction, and drive configuration so the machine matches your feedstock — not the other way around.

    Don’t see your material? Contact us. A missing material doesn’t mean we lack a solution — it means we haven’t published that one yet.

  • CUSTOM MATERIAL DEVELOPMENT

    The Bonnot Company has a long history of testing unusual materials and developing extruders where none existed before. In the 1970s, an unusual testing request led us to pioneer the first pet food extruder. Since then we’ve built extruders for graphite, modeling clay, and many materials beyond our standard catalog.

    If your material isn’t on our list, we’re prepared to do the development work to create a solution. We test new feedstocks in our own test room and build the machine around what the material actually requires.

  • MATERIALS WE EXTRUDE

News

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July 22, 2019

3 Applications for Benchtop Extruders

Benchtop extruders, also known as laboratory extruders, are used across industries for a wide variety of purposes. The Bonnot Company has been helping labs and testing facilities create custom machines for decades — with so many different needs to fill, benchtop extruders aren't a one-size-fits-all solution. Our custom-built lab extruders have helped countless clients complete highly specific jobs and push the limits of innovation in their industries. What we've listed here are just a few of the many applications for benchtop extruders.

August 7, 2018

Basic Theoretical Factors in Extrusion Augers

If you take a bolt, having a nut on it, and revolve the bolt, in a fixed axis, both the bolt and the nut revolve. Then, if you hold the nut with a wrench, and revolve the bolt, in the proper direction, the nut will travel forward and fall off the end of the bolt. A clay auger works in a similar manner. Inside of the closed auger barrel there is a “clay nut” which moves forward on the screw. The clay nut is ephemeral. The clay nut is constantly being destroyed by passing off the end of the auger, and it is constantly being reformed by feed material entering the closed auger barrel from the feed hopper, or vacuum chamber.