Extrusion Melt Pumps

What is an Extruder Gear Pump and How Does It Work?

Melt Gear Pump are electric or hydraulic pumps used to control the flow of molten plastic or other materials in the extrusion process. These systems allow the material to be extruded at a more consistent and even flow rate. It plays a critical role, especially in the processing of high-viscosity materials, increasing production efficiency and improving product quality. Melt gear pumps also optimize the pressure in the system, helping to achieve better process control and high-quality products.

Advantages of Extruder Gear Pumps

1. Pressure Stability:

a) Regulates extruder outlet pressure and ensures stable material flow.

b) The material coming out of the extruder has an excellent pressure stability.

c) This is the only solution for all applications that require high pressure at the extruder outlet.

2. Increased Efficiency:

a) Increases production capacity.

b) Enables the production of more stable dimensions and higher quality products.

3. Energy Savings:

a) Reduces energy costs by lowering extruder outlet pressure and motor current.

4.Temperature Control:

a) Optimizes extruder outlet temperatures.

b) Moreover, using a melt gear pump is the only solution to produce within tolerances in productions where thickness variations are important.

5. More Profitable Production:

a) Provides cost advantages by using less energy and material.

To explain it briefly; It is a machine that works in front of the extruders and has many advantages.

Design Differences

• Anti-Backflow: The gear geometry prevents backflow.

• Minimum Pressure Loss: Increases efficiency.

• Additional Cooling Channels: Provides better temperature control.

• Precise Gear Profiles: Ensures minimal deviation in thickness variations.

PUMP	FLOW	PE - HD	PS	PP
MODEL	cm/rev	rpm - kg/h	rpm - kg/h	rpm - kg/h
MGP1	10	110 - 45	140 - 72	140 - 128
MGP2	25	100 - 105	130 - 168	130 - 130
MGP4	46	95 - 180	115 - 270	120 - 220
MGP9	92	80 - 300	105 - 490	110 - 410
MGP17	176	70 - 500	95- 850	100 - 710
MGP37	371	60 - 900	80 - 1500	90 - 1350
MGP71	716	50 - 1450	70 - 2540	80 - 2300
MGP148	1482	40 - 2400	60 - 4500	70 - 4160

Product	PE - HD	PS	PP
Application	Pressure Pipe	Thermoformed Sheets	Thermoformed Sheets
Viscosity - Pas	3000 - 5000	1500 - 2500	1000 - 2000
Diff. pressure - bar	180	120	130
Density - g/cm3	0.75	0.93 - 0.96	0.73

Application Areas

• Monofilaments

• Lamination and Foil Production

• Sheet Metal Production for Thermoforming Purposes

• Profile and Pipe Extrusion

• Cable Extrusion

• Coating etc.

MONOMEX gear pumps improve product quality and production efficiency by creating stable flow conditions between the extruder and mold. Adding a gear pump to an existing system reduces costs and boosts performance, rather than investing in a new extruder.

For more information and to request a quote, please contact us!