BUSS Co-Kneader series

Diversity for every requirement of plastics production

Whether high-performance compounds, sensitive specialty materials, or small quantities in development – with the co-kneader series from BUSS, you will find the right solution for every application.

For 80 years, BUSS has stood for innovative compounders with maximum process reliability, modular adaptability, and excellent compounding quality. Our four series cover a wide range of applications – from large-scale production to laboratory trials. Get to know the differences and discover which co-kneader fits your process.

The centerpiece of all BUSS systems is the patented co-kneader technology: a rotating screw shaft with axial oscillation. In combination with precisely controllable temperature management, it enables short process lengths, excellent dispersion, and consistently high product quality – with maximum flexibility.

The Co-Kneader principle

  • Rotating screw shaft with axial oscillation — The continuous back-and-forth movement combined with the stationary kneading pins ensures intensive yet gentle mixing.

  • Optimal temperature control throughout the entire process zone — The precise control of shear and temperature conditions reduces thermal stress – especially a clear advantage for temperature-sensitive formulations.

  • Short, clearly structured process length — Each section fulfills a precisely defined task – from feeding through processing to the discharge zone.

  • High process reliability and reproducibility — Consistent product quality through controlled residence time and efficient degassing.

Patented co-kneader principle

Choose the appropriate

BUSS Co-Kneader

COMPEO

Maximum flexibility. Full performance. For high-performance compounds, elastomers, thermoplastics, and more – our most versatile system.

KX

Aluminium specialist. Optimized co-kneader for anode paste production for electrolysis processes.

PCS

Perfect for Powder Coatings & Thermosets. Optimal for all types of powder coatings for high gloss, matte, and textured surfaces.

LR

Specialist for the food industry. Co-kneader technology for food processing and production of gumbase.

Not sure which series is the right one?

One co-kneader principle, four series.

Many applications

The co-kneaders from BUSS are designed for maximum material diversity. Whether highly filled, sensitive, abrasive, or viscous – with the right system, you can process a wide range of formulations safely, reproducibly, and in the best quality.

Typical Applications

  • Thermoplastics & Elastomers
  • Battery compounds & Anode compounds
  • Powder coatings
  • Thermosets & EMC
  • Food technology
  • Specialty compounds
  • Customer-specific formulations developed in the BUSS technical center
Close-up of a BUSS Co-Kneader shaft. Due to the unique shaft geometry and the Co-Kneader principle, BUSS compounders are generally very available with long service lives.

All applications

More about us

Industries

Our compounding systems are used in numerous industries. They are the beginning of the manufacturing chain for countless everyday items and individual solutions for highly specialized industrial sectors.

About Us

Welcome to the future of industrial compounding. As one of the world's leading suppliers of compounding systems, we develop solutions for demanding material applications. With our focus on innovation, we create tailor-made, product-specific compounding solutions.

Career

Looking for a new challenge? In an industrial company that combines tradition and Swiss values with innovation and internationality? We create excellent products with both large and small brands. And it’s never boring. With us, you work in a future-oriented environment. At BUSS, a profession can become a calling. And we thrive on your passion for innovation, responsibility, and customer satisfaction.