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ZB-G bearing external melt pump

  • ZB-G bearing external melt pump

Name: ZB-G bearing external melt pump
Category: Polymer melt pump design
Introduction:ZB-G bearing external melt pump series is suitable for occasions where the melt has poor self-lubrication after melting, contains a small amount of so...
Manufacturer: BATTE Machinery China

ZB-G bearing external melt pump series is suitable for occasions where the melt has poor self-lubrication after melting, contains a small amount of solid particles, and wears a lot of related components such as the extruder and melt pump, and the conventional melt pump cannot meet the requirements. Such as: wood plastic powder. External lubrication is adopted to solve the defect of poor melt fluidity, which is not suitable for self-lubricating. The disadvantage is that the structure is more complicated than the conventional melt pump, and the cost is also higher than that of the conventional melt pump.

zb-g gs external melt pump

zb-g gs series bearing external melt pump

Application field: Bearing external pump is suitable for PS, PP, PET, PVC, PC, PMMA, PA, ABS, PE-LLD and other processes. Features: The flow channel is short to reduce the logistics residence time.

The main structure of ZB-G bearing external pump:

Pump body: stainless steel/high temperature tool steel
Gear: 440B/High Temperature Tool Steel
Plain bearing: copper alloy/tool ​​steel/special material
Shaft seal: mechanical seal/packing seal/screw combination seal
Heating system: thermal insulation jacket hot water/heat transfer oil heating, electric heating

ZB-G bearing external pump technical parameters:

Viscosity: ≤40000 Pa.s
Temperature: ≤400℃
Cleaning temperature: ≤450℃
Outlet differential pressure: ≤40MPa

zb-g gd series bearing external melt pump

zb-g gd series bearing external melt pump

ZB-G series bearing external pump is suitable for harsh working conditions. Compared with the traditional melt pump internal self-lubricating system, external lubrication is more suitable for use in harsh working conditions. When the polymer contains many infusible substances, such as calcium carbonate particles, carbon particles, glass fibers, etc., it is easy to coalesce in the lubricating flow passage under high temperature for a long time, blocking or blocking the lubricating passage. If there is no passage, the gear shaft and the shaft sleeve are easily locked by dry grinding, and the problem of using an externally lubricated melt pump can be solved. Four imported bearings are used to fix the driving shaft and the driven shaft outside the pump body. According to The viscosity of the material and the operating temperature should be optimized accordingly to the internal structure of the melt pump, as well as the sealing and matching clearance.

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