Elastomer Extrusion Pumps

Extrusion gear pump for elastomers and rubber manufacturing with highest performance – extrex® RV/RB

Extrex® RV/RB

When it comes to manufacturing profiles and dealing with strainers, high requirements are placed on pumping consistency and extrusion lines. The new extrusion gear pump series extrex® RV/RB from MAAG raises the performance of gear pumps for elastomer extrusion and rubber extrusion to new levels in terms of both economy and polymer processing technology. Product quality is guaranteed by a stable discharge, the lowest tolerance deviations, and achieving process stability in quick time.

Inquiry system 

Configure your own product according to your requirements and needs. If you are unsure of the configuration, provide us in the notes the necessary information about the existing sensor or product, even a competitor. We will be happy to help you find an alternative MAAG products. If your request is urgent, let us know. We will do our best to help you resolve this situation to your satisfaction as quickly as possible. If we have all the information, we are able to offer a model with minor differences.

If you need more information do not hesitate to contact us.

Configuration code

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Differential pressure [bar] max. 120
Viscosity [MPas] max. 30000
  Temperature [°C] max. 130
Throughput rate [kg/h] RV 15 – 1500RB 50 – 1000
Pump size RV 36 – 110
RB 56 – 110
Housing Alloy steel
Gear shafts 28 – 90
Bearing Tool steel
Shaft seal Tool steel
Bearing Alloy steel
Shaft seal Alloy steel
Pump heating Liquid temperature controlled


Butadiene rubber
Chloroprene rubber
Ethylene-propylene-terpolymer rubber
  Nitril-butadiene rubber
  Styrene-butadiene rubber
  Natural rubber
  Others upon request
  Paints and varnishes
  Waxes and paraffins
  Mineral oils and fats
  Petrochemical products
  Lube oil


Various tolerance classes
Choice of materials for every application
Shaft cooling with contact protection
Bearing lubrication with internal recirculation


Base and base frame
Adapter flange
  Controllers, expac® complete solutions