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A close-up photo shows numerous small, beige, cylindrical pasta shapes scattered in a metal tray with ridged sides. Some pasta pieces display a spiral or ridged texture. The lighting is bright.

May 6, 2026

Marshmallow Pellet Extrusion Testing

How Bonnot's test room used a cooker extruder to develop a low-density marshmallow pellet that floats on water — and what it took to get there.

Close-up of a metal industrial machine extruding several strands of black material through round holes onto a metal surface. The machine appears used, with visible bolts and some discoloration on the metal.

March 18, 2026

The Value of the “Unsuccessful” Trial: Why R&D is a Journey, Not a Destination

Research and Development is rarely a straight line from problem to solution. More often, it is a series of adjustments, observations, and refinements.

A large, shiny metal helical screw or auger lies horizontally on a wooden pallet, with the focus on the front end and the background softly blurred.

March 12, 2025

An Introduction to Single Screw Extruders

Explore the basics of single screw extruders—how they work, core components, advantages, and common manufacturing applications.

Three black strips of material are being processed on rollers in an industrial machine, with clear plastic rolls and additional equipment visible in the background.

September 27, 2024

Exploring Butyl/Mastic Rubber Extruders

The Bonnot Company has manufactured a line of extruders for processing butyl/mastic rubbers (butyl) since the 1950's. The company recognized the need to offer processing extruders for this rapidly developing market. In keeping with a core principle of continuous improvement, these designs have evolved over time to remain the pre-eminent industry choice for butyl processing equipment/extruders.

A laptop displays a detailed technical engineering drawing with multiple views and dimensions of a mechanical component, using CAD software on the screen.

September 19, 2024

Bulk Feeding Solutions with Custom Extruders

The Bonnot Company has a variety of custom extruders designed for bulk feeding of rubbers, both natural and synthetic, silicones, butyls and mastics. Regardless of the batch size or material viscosity, there is a solution available. If one of the company's standard designs does not meet your needs, a custom solution is developed. Customized solutions specifically tailored to a customer's needs are a core competency of ours and competitive advantage.

Five people stand around an industrial machine processing red material in a factory setting. Two workers in uniforms operate the machinery while others observe and discuss. There is a yellow caution sign on the machine.

December 16, 2022

These are Testing Times

The Bonnot Company's best practice is to conduct testing as there is no reliable theoretical modeling that accounts for all the variable factors in the extrusion process.

A machine extrudes yellow food pellets into an aluminum tray on a stainless steel counter. Some pellets have spilled outside the tray. Industrial kitchen equipment is visible in the background.

July 31, 2020

Bonnot Working on Using Protein Extrusion to Process Plants and Other Meat Replacements

Over the past few years, many start-ups have approached Bonnot regarding plant-based protein extrusion, looking to capitalize on the increasingly popular trend of marketing meat-free alternatives to consumers. As more people continue to adopt vegan and vegetarian lifestyles, there is a growing need to understand and expand plant-based food processing techniques.

Several plastic jars tipped over on a brown surface, spilling various types of small, cylindrical and pellet-shaped ceramic or plastic materials in white and gray colors.

June 16, 2020

Why Bonnot is #1 Globally for Catalyst Extrusion

It's no secret that Bonnot has been around a long time. We're so old, in fact, that we don't have Articles of Incorporation — they weren't necessary in 1891. But what most people don't know is that we started out making machines to process clay. By the early 20th century we transitioned to brick machines, paving roads for cities across the US, and eventually to the wide catalog of extrusion equipment and machines we're known for around the world today.

A close-up of a textured metal surface, possibly part of a Dewatering Extruder, is in focus on the right side, with blurred circular lights and reflections in the background, creating an industrial or workshop setting.

June 1, 2020

Replace Your Old Rubber Granulator with a Bonnot Rubber Bale Feeder

Rubber granulators have been used for over half a century to resize rubber bales into usable chunks for downstream processing. They are designed to run for many years, which is why they're still prominently used in rubber processing plants. The problem with rubber bale granulators is that they often require the introduction of chemical agents to do that job efficiently. Luckily, Bonnot has the solution — and we have for more than 25 years.