Gear Pump
High accuracy, low temperature and high output extruding system.With the combination of extruder and gear pump dispersion is reduced to 1% or less as compared to about 3% with uniaxial extruder.In combination with cold, pin and vent type extruder, the gear pumps enhance the Nakata extruders and allow them to work at the highest levels of accuracy and quality.Especially in the process of particularly complex rubber materials, can show the full play of its power.
Major advantages of using gear pump system
1.Stable output product regardless with the rotation change of screw
2.Speedy extrusion with highest accuracy product.
3.High die pressure allowed, helpful for energy conservation.
4.Avoid excessively high compound temperatures.
| 5.High output in high pressure.
6.No“Vent up”
7.Versatile and retrofit table to all extruder lines.
8.Mimimum rubber wastage. Can choose the small size extruder than before.
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Combination of gear pump and extruder | 
Physical map
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Rubber flow in the pump |
Cold Feed Extruder
Φ 90mm cold feed extruder（L/D=12）
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Stability time: approx.6 min
Screw rotation: 6.0rpm
Output pressure: 45kg/cm
Material: NR/BR Customized cut-off: 48rpm
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Φ 90mm cold feed extruder（L/D=12）+gear pump（ZP75/50） 
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Stability time: immediately
Gear pump rotation: 4.0rpm
Output pressure: 45kg/cm
Material: NR/BR Customized cut-off: 48rpm |
