Conical twin screw
Product materials
Alloy-Steel of High-Quality
38CrMoALA(JIS SACM645)
42CMo(JIS SCM440)
9Cr18MoV
CW6Mo5Cr4V2
Heat treatment
Nitriding treatment
Electroplated hard chromium layer
High frequency quenching
Spray corrosion resistant and wear-resistant bimetallic layer
Vacuum quenching
Technical indicators
Nitriding layer depth：0.5~0.8mm
Nitriding hardness：950~1020HV
Nitriding embrittlement：Less than grade 1
Surface roughness：Ra 0.4um
Screw straightness：0.015mm
Double alloy hardness：HRC55-62
Double alloy thickness：>2mm
Screw type
For different plastic properties, screws with different structures can be selected to improve the plasticizing effect, such as gradual, abrupt, wavy, barrier, double screen, shunt, separate, exhaust, pin, mixed, double headed, triple headed, multi headed, etc.
Screw and barrel specifications
|
Specification(d/D)
|
Working length(mm)
|
Extrusion ability(Kg/h）
|
Rotation speed of screw(rpm)
|
|
Φ35/Φ77
|
810
|
40-70
|
5~50
|
|
Φ45/Φ90
|
990
|
50-80
|
5~45
|
|
Φ50/Φ105
|
1070
|
100-150
|
4~45
|
|
Φ51/Φ105
|
1220
|
100-150
|
4~45
|
|
Φ55/Φ110
|
1220
|
120-180
|
4~40
|
|
Φ60/Φ125
|
1320
|
150-200
|
4~40
|
|
Φ65/Φ120
|
1440
|
200-250
|
4~40
|
|
Φ65/Φ132
|
1440
|
200-250
|
4~40
|
|
Φ70/Φ140
|
1460
|
220-300
|
4~40
|
|
Φ75/Φ150
|
1480
|
250-300
|
4~35
|
|
Φ80/Φ143
|
1800
|
300-360
|
4~35
|
|
Φ80/Φ156
|
1660
|
300-360
|
4~35
|
|
Φ92/Φ188
|
2000
|
400-500
|
4~35
|
Product application scope
PVC plastic steel profile
PVC resin tile, PE corrugated pipe
PVC, PE, PP wood plastic profiles
PVC, PP, PE, PC, ABS and other profile extrusion
PVC wood plastic (foam) door panel, decorative board and other wide plate
PS, PET, PC, PMMA, TPU and other profiles
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