Compounding
An energy-efficient way to compound rubber and similar materials.
Modular Screw Configuration
RingExtruder RE screw profiles are based on Erdmenger self-wiping designs
RingExtruder RE
Revolutionary and disruptive technology for continuous processing applications requiring low energy (i.e. low temperature) mixing and efficient degassing of melts.
The RingExtruder’s technology is based on 12 screw shafts, arranged symmetrically in a ring rotating in the same direction, each on its own axis. This composition largely compensates the spreading forces known in multi-screw extruders and therefore reduces barrel and screw wear.
We have engineered and patented the RingExtruder RE® for shear-sensitive continuous compounding of rubber, degassing of post-consumer polyethylene terephthalate (PET) bottles in PET bottle-to-bottle recycling and the challenging mixing of adhesives.
The RingExtruder RE offers revolutionary and disruptive technology for continuous processing applications requiring low energy (i.e. low temperature) mixing and efficient degassing of melts.
- The combination of more frequent passages through the intermeshing sections and high surface-to-volume ratio provides superior degassing capability.
- The arrangement of the screw shafts in an annular ring eliminates spreading forces while preserving your barrels and screws.
Key Features
- With 12 apexes, dispersion via elongation results in low energy input without the shear and pressure peaks associated with twin-screw extruders
- High surface-to-volume ratio, which is unmatched by any other multi-screw extruder while also maintaining self-wiping geometry
- Enhanced thermal heat transfer for processing temperature-sensitive materials
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Feeding
Solids feeding of raw materials into the RingExtruder RE
Venting and Degassing
Venting to atmosphere or under vacuum
Distributive Mixing
The 12 melt channels within the RingExtruder RE are repeatedly passed through the 12 intermesh zones (‘apexes’) where the flow is primarily elongational
Features
Your multi-extrusion solution
Developed by Josef A. Blach in 1998, the RingExtruder RE is a multi-screw extruder with twelve (12) co-rotating screws arranged symmetrically around a stationary core; each shaft rotates in the same direction on a fixed axis.
Features
Flexible modular design for your process requirements
The modular barrel design provides flexibility to configure any sequence of unit operations, up to 100 dimensions. Top opening feed and vent barrels can be installed at any axial position, liquid injection can occur at any axial position, and you’ll have discrete temperature control for each barrel segment available in four dimensional or six dimensional lengths.
Explore solutions using the Ring Extruder RE
The Ring Extruder RE is the most efficient and innovative way to compound rubber, degass post-consumer polyethylene terephthalate (PET) bottles in PET bottle to bottle recycling, and mix challenging adhesives.
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