Equipment / Extrusion

Cold Forming Extruders

Bonnot Cold Formers continuously cool and extrude cooked doughs into precise pellets and shapes — delivering consistent density, defined geometry, and clean cuts across demanding food production lines.

How it works

Cooked doughs exit processing at elevated temperatures — too hot to cut cleanly or hold shape. The Bonnot Cold Former accepts this material directly, progressively drawing heat out through a jacketed barrel and hollow, shallow-flighted screw before the dough reaches the die. The result is a controlled, continuous output of uniform pellets or formed pieces ready for downstream handling. A counter-rotating packer in the feed hopper is available for materials that bridge or resist gravity feeding — no auger jams, no process interruptions.

Extruder Design Features

1Designed to maximize thermal transfer

2Multiple cooling zones for process control

3Hollow, shallow flighted screw to supplement barrel jacket cooling

4Customizable dimensions

5Configured for your specific application

Optimized thermal transfer
Barrel jackets and hollow screw core work together — two active cooling surfaces instead of one.
Multiple cooling zones
Independent zone control lets operators fine-tune the temperature profile along the full screw length.
Shallow-flighted screw
Shallow flights maximize surface contact between dough and the cooled screw wall — critical for heat-sensitive products.
Application-specific configuration
Die geometry, screw dimensions, and packer options are specified per application — not retrofitted from a standard model.
Sanitary construction
All contact surfaces and seals conform to current food safety and sanitary design standards.
Scalable capacity
Available in multiple frame sizes to match pilot-scale trials through full commercial throughput.

Available in a range of sizes

CF 6 Series

Output
500lbs - 2,000lbs
Layout L x W x H
96" x 36" x 36"
Approximate Weight
3200lbs
Motor
25 HP
L/D
10/1
Contact Components
Food grade stainless steel

Many Food Products Can be Extruded

The Bonnot Cold Former is used in a number of major food manufacturing facilities to create uniform densities and shapes.

Pelletizing Dough

The cold former gently lowers temperature in cooked products to enable formation and cutting.

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

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  • Nestlé
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