Originally developed to even out the flow & enhance mixing techniques for extrusion products. The melt pump can be ordered for variable flow rates (See volume flow chart in Product Details). Designed to suit the Barrell 1/2 inch (12.7 mm) Mini Twin Screw Extruder and will also suit up to 16mm twin screw extruders with maximum output pressures of 100 bar. Comes complete with adaptor plate to suit most machines, heat bands, digital temperature and speed controllers.

Benefits of a melt pump

Promotes a more even flow and gives a benefit of creating a back pressure in the extruder meaning; the extruder can run faster and continue mixing when doing fine extrusions such as single fibre extrusion.

Product Dimensions

Weight: 9.5kg

Melt Pump S/Steel (MK3B) Gear Pump Specifications

Please note; for the pump to work, the pump requires minimal clearances on all moving parts. Maximum pressure (limited to) – 95 bar.
The pressure will vary according to 3 main factors including the temperatures, viscosity & speeds.
Polymer viscosity and pressures will then ultimately  be determined by the operator.

Special note; The pump has a special mechanical torque limiter to protect the equipment and limit the pressure to a maximum of 95 bar. For example, if there is a flow restriction or a blockage in the Tooling, the pump can only give a maximum of 95 bars before the Torque Limiter disengages. The Torque Limiter will automatically re-engage when the error is fixed. (Higher pressures available upon request)

Volume flow chart – Reduction gear box selection

Option 1

50:1 Reduction gear box & 500:1 Reduction gear box setups
Note: The pump is also supplied with an additional easy to fit decimal 10:1 gear box, which can be mounted in co-existence of the main gear box.

HZRPMVolume
52.7164 ml/hour (2.72 ml/minute)
100543,272 ml/hour (54.5 ml/minute)

500:1 Reduction gear box  (500:1 Reduction gear box. Add 10:1 Decimal gear box to existing 50:1 gear box)

HZRPMVolume
50.2716.4 ml/hour (0.27 ml/minute)
1005.4327.2 ml/hour (5.45 ml/minute)

Option 2

100:1 Reduction gear box  & 1000:1 reduction gear box setups
Note: The pump is also supplied with an additional easy to fit decimal 10:1 gear box, which can be mounted in co-existence of the main gear box.

HZRPMVolume
51.3582 ml/hour (1.36 ml/minute)
100271,636 ml/hour (27.3 ml/minute)

1000:1 Reduction gear box  (1000:1 Reduction gear box. Add 10:1 Decimal gear box to existing 100:1 gear box)

HZRPMVolume
50.1358.2 ml/hour (0.136 ml/minute)
1002.7163.6 ml/hour (2.73 ml/minute)