熔体泵主要功能是将来自挤出机的高温塑料熔体增压、稳压后流量稳定地送入挤出机头。其稳定熔料压力、流量的能力优于各种类型的挤出机。将它与单螺杆或同向双螺杆挤出机串联使用时，就使整条生产线的效益显著增加。
The main function of high temperature melt pump is the plastic melt pressure, pressure will come from the extruder after stable flow into the extrusion die. The stability of melt pressure, flow capacity is better than all kinds of extrusion machine. It will be with single screw and twin - screw extruder used in series, makes the whole production line efficiency increased significantly.
应用熔体泵的主要好处是：
The main advantage of using a melt pump is:
1.将挤出制品的尺寸公差降至小，使单位重量的物料制出更多的产品。在挤出制品的尺寸公差要求严格或制品的原料成本较昂贵时，使用熔体泵更为必要，更有价值。
Dimensional tolerances 1 extrusion to a minimum, so that the unit weight of the material for more products. In the dimension tolerance of extrusion products strict or product raw material cost is expensive, it is necessary to use the melt pump, more valuable.
2.将同向双螺杆挤出机与熔体泵组合成混炼挤出造粒生产线，其混炼质量和产量比单独的双螺杆造粒机组大幅提高。加工每公斤物料的能耗一般可降低百分之二十五左右。
2 co rotating twin screw extruder and melt pump into mixing extrusion granulation production line, the mixing quality and yield is greatly improved than the twin-screw granulator unit separate. Energy consumption per kilogram of materials processing can be reduced by about twenty-five percent.
3. 在原来是单螺杆或同向双螺杆造粒挤出机上加装熔体泵和管、板、膜等挤出机头，可省掉造粒工序直接挤出制品。这种系统非常适合挤出制品的材料需要经过共混改性的场合。该熔体泵系统除具有上述第2条优点外，还通过简化挤出制品的生产工艺过程，缩短生产周期来实现节能。
3 in the original single screw or the same granulation twin-screw extruder with melt pump and pipe, plate, film extrusion die, granulation process can be saved directly extruded products. This system is very suitable for extrusion materials need to go through the modification. Besides the above mentioned second advantages of the melt pump system, also by simplifying the process of extrusion products, shorten production cycle to achieve energy efficiency.
4. 可以实现用多台中小型挤出机同时向一台熔体泵供料，熔料经熔体泵增压计量后供给机头挤出大型制品（大口径管材、宽幅板、膜等）。这种配置的生产线结构紧凑，占地面积小；挤出制品的截面尺寸更精确且控制容易。
4 can be achieved using Taichung small extruder to a melt pump, melt the melt pump pressurized metering supply head extrusion of large products （large diameter pipe, wide plate, film etc.）。 The production line structure of this configuration is compact, small footprint; section size of extrusion products more precise and easy to control.
5.在单螺杆排气挤出机上配置熔体泵，可使该系统的操作自如，性能优异。在高机头压力和高产量下，挤出量可随意调节而决无冒料情况出现。
5 in the single screw extruding machine configuration melt pump, can make the system operate freely, excellent performance. In the high head pressure and high yield, output can be adjusted and no overflow occurs.
