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Extruder

Twin Shaft Feeders

Controlled Feeding for Extrusion or Other Process Equipment

Bonnot developed the Twin Packer concept to enhance ingestion of difficult materials that are prone to bridging in the feed section.

These single screw designs are very versatile and are employed in a wide variety of industries including chemical catalysts, sealants, pet treats and many more. The packer designs can be modified to improve the feed depending on the application. They can also be driven independently with dedicated gear motors, further enhancing process control. The line of Bonnot Twin Packers can be designed with a wide variety of screw geometries, different length-to-diameter ratios, horsepower, RPM ranges and controls to optimize your application.
Technical line drawing of a Twin Shaft Extruder featuring an industrial mixer with a motor, gearbox, and internal paddles. The unit is rectangular, with support legs and mounting flanges visible at both ends.

Extruder Design Features

1Twin Shafts for large batch handling

2Variable pitch knives and gate to change residence time and output rate

3Direct Connect Gear Motor

4Custom bases and orientation available to minimize the footprint

5Sealed Gear Case for durability

Specifications

Extruder Standard Specifications

8 Series TF

Industrial auger mixer with dual rotating shafts and helical blades, electric motor, and gear mechanisms. This Twin Shaft Extruder is constructed from metal and designed for blending or processing bulk materials. Viewed from an overhead angle.
Layout
55" x 21" x 19"
Hopper Opening
42" x 16"
Hopper Motor
5 HP
Close-up of a stainless steel industrial machine part resembling a Twin Shaft Extruder, with multiple angled metal blades attached to horizontal rods, secured by bolts and nuts, designed for mixing or processing materials.

Twin Shafts with Variable Pitch Knives

Bolt through variable pitch knives allow for varying the residence time, shear and mix. Also, easy to replace when worn.

Twin Shaft Feeder Mounted

In typical production environments, our Twin Shaft Feeders are mounted directly above in order to direct feed our extruders.

A large industrial machine, resembling a Twin Shaft Extruder with its robust motor, gears, and handwheel, stands on a factory floor. A red safety barrier is in the background, and trays with parts rest on the machine’s base.

Want to prove it out?

The Bonnot Company is pleased to offer FREE feasibility testing in our test facility. Come and take advantage of our comprehensive catalog of test equipment; different extruder designs, screw geometries, forming dies, temperature control options, mixers and material testing equipment.

Get in touch with us

Trusted by the Best

  • The Honeywell UOP logo with “Honeywell” in red bold letters above and “uop” in blue lowercase letters below on a light background, representing advanced technologies such as the Twin Packer Extruder.
  • Arkema logo in blue capital letters with the words “Innovative Chemistry” in smaller red font underneath. The background is light gray, evoking the advanced technology behind solutions like the Twin Packer Extruder.
  • SC Johnson logo with the text, “A family company at work for a better world,“ in black and red on a light background, subtly incorporating a laboratory extruder image to highlight the company’s commitment to innovation and quality.

Relevant Ancillary Equipment

A metal industrial Terrier Extruder machine labeled “Bonnot,” featuring an electric motor, rectangular hopper, and cylindrical extrusion section on a sturdy base.

Terrier Extruders

A gray industrial Twin Packer Extruder machine with a yellow vertical feed chute, a cylindrical motor on the left, and a “Bonnot” label on the front. The machine features a rectangular base and metallic components.

Twin Packer Extruders

A white rectangular industrial device with a display screen, red button, side nozzle, and a blue “B BONNOT” logo on the front panel. The unit features advanced extruder controls, connection ports, and a gray handle on the bottom.

Extruder Controls