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Batte Machinery Zhengzhou Co., Ltd.
E-mail: info@battemachinery.com
whatsapp: +86 158 38331071
Tel: +86 371 67991755
After-sales Tel: +86 371 67997677 / 67997877
Address:No.11 Changchun Road, High-tech Zone, Zhengzhou, China.

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Polymer melt transfer pump (melt pump) internal structure, working principle, specifications and mod

The internal structure of thermoplastic melt pump is composed of pump body, front and rear side plates, two gears meshing with each other, bearings and seals, etc. The space formed by the tooth profile of the two gears, the pump body and the side plate constitutes the feeding, conveying and discharging areas of the pump. Gear is the core part of the melt pump, its structure in various forms: according to the meshing method can be divided into internal and external mesh;;; according to the tooth direction can be divided into straight gears, helical gears and herringbone gears, etc., but in the transmission of plastic melt commonly used involute straight teeth or helical teeth of the external meshing gear pump.

polymer melt pump

polymer melt gear pump

Polymer melt pump working principle: it is a positive displacement conveying device, the flow rate and pump speed is strictly proportional to the relationship. By two gear tooth profile, pump body, side cover plate constitutes the pump feeding area, transmission area and discharge area. When working, it relies on the working volume change caused by the mutual meshing of the master and slave gears to convey the melt. The working volume consists of the pump body, the gear's tooth groove and the bearing with the function of side plate (i.e. feeding area). When the gear rotates in the specified direction, the melt enters into the grooves of the two gears in the feeding area. As the gears rotate, the melt is brought into the feeding area from both sides, and the gears mesh again, so that the melt in the grooves is extruded out of the discharge area, and pressurized to the outlet pipe.

thermoplastic melt pump

thermoplastic melt pump

Polymer melt gear pumps are available in sizes ranging from 0.1cc to 12,000cc. Melt pump specifications from small to large are 0.1cc, 0.5cc, 1cc, 2cc, 5cc, 10cc, 20cc, 31.5cc, 50cc, 100cc, 150cc, 200cc, 315cc, 500cc, 800cc, 1,200cc, 2,500cc, 3,200cc, 4,000cc, 6,100cc, 8500cc, 12000cc, etc.. It can also be customized according to the user's actual production needs.

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