Extrusion technology

High cost-effectiveness and unparalleled productivity in the production of rubber profiles

KraussMaffei Berstorff rubber-processing extruders are perfectly suited for the most exacting requirements in rubber profile production.

Extrusion technology Cold-feed GE-K rubber extruder
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Cold-feed GE-K rubber extruder

Cold-feed GE-K rubber extruder

Efficiency and reliability for simple rubber compounds

Cold-feed Pinconvert® GE-SC extruders
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Cold-feed Pinconvert® GE-SC extruders

Cold-feed Pinconvert® GE-SC extruders

The highest flexibility and reliability, combined perfectly

Cold-feed pin-barrel rubber extruder GE-KS
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Cold-feed pin-barrel rubber extruder GE-KS

Cold-feed pin-barrel rubber extruder GE-KS

Flexibility and reliability without compromise

Cold-feed GE-K rubber-processing extruders

The cold-feed rubber-processing extruders of the GE-K series are the ideal solution for simple processes. Thanks to the compact design, this extruder version only requires little space to develop its full potential. The high degree of automation makes it an easy-to-operate machine. The GE-K series offers outstanding operational safety, premium product quality, unparalleled reliability and long-lasting value.
The extruders of this series are ready to plug, so that set-up and start-up can be performed within short time. The robust gearbox and optimally-sized drive systems with water-cooled AC motor provide long service life and low maintenance costs.
The vacuum systems of Vac GE-K extruders are tailored to the specific process. The machines provide high output rates, low stock temperatures downstream from the extrusion die and increased dimensional stability of the extruded products.

Cold-feed GE-KS pin-barrel rubber-processing extruders

GE-KS and Vac GE-KS pin-barrel rubber-processing extruders are the all-rounders for a wide variety of applications. Owing to their outstanding flexibility and reliability they are true success machines in rubber processing. The attractiveness of the pin-barrel extruder is additionally increased by the extended series equipment, like automatic pin adjustment, replaceable wet liner, pin break detection and high-performance screw.
The matured technology is designed for a wide spectrum of rubber compounds of varying viscosity with just one screw type, without requiring any retooling.
Our Vac GE-KS degassing extruders are equipped with a processing section of pin-barrel design and a vacuum zone. These machines give higher output rates, lower stock temperatures downstream from the die and enhanced dimensional stability of the extruded products.

Cold-feed GE-SC Pinconvert® extruders

KraussMaffei Berstorff GE-SC PinConvert® extruders are characterized by a throttle element installed in the liner in the area of maximum channel volume. This extruder is equipped with pins distributed symmetrically over the circumference that radially reach into the screw channels. The channel volume can thus be reduced manually or electro-hydraulically to zero in order to optimize the performance parameters such as throughput rate, stock temperature and material homogeneity.
With the barrel degassing system of special design, the field of application of our GE-SC PinConvert® extruders was substantially extended. Here again, the throttle element is of decisive importance as the filling level of the extruder upstream from the degassing zone can be influenced by the pin penetration depth.

benefit of the customer

Plug-and-play solution
Compact design
High level of automation
Simple operation
Quick cleaning