Polymer Production Pumps

Gear pumps for industrial processes (grey cast iron) ‒ hydrolub®

Polyrex⁶ PR

Processes in the manufacture of polyolefins like polyethylene and polypropylene require high-pressure gear pumps which build up pressure for the units after the compounder, meaning for extrusion and pelletizing. The new performance-driven geometry of the x6 class of polyrex® results in high throughput rates at high flow rates and low shear stress. Polyrex⁶ can convey low viscosity polymers where earlier polymer metering pump generations failed. The increased pump performance during polymer processing makes the specific conveying capacity 50% higher compared to same housing size pumps of older generations. For debottlenecking existing plants, MAAG offers alternative housing designs with matching interfaces to older polymer metering pump generations.

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.

MAAG Configuration code

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Rotational speed [U/Min] max. 85
Torque [Nm] max. 1625000
Differential pressure [bar] max. 320
Viscosity [MPas] 20000 Pas
Temperature [°C] max. 350
Throughput rate [kg/h] max. 120
Pump size 3 – 100
Output [l/Min] max. 1650


Volumetric Efficiency6

Instant Flexibility Reduced back-flow to offer you the choice between higher differential pressure or boosted throughput rate
Flow Economy Reduced back-flow to lower your energy consumption

Power Density6

Compacted Power Performance driven geometry to reduce your total cost of ownership

Process Reliability6

Smart Flow Fast lubrication replacement to improve your process stability