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barrel and twin screw: Φ 35/70- Φ 92/178
The above are standard specifications, we can customize according to customers' requirements.
The compression raio of screws can be desighed according to different products and ingredients.
Appliance
PVC, PP, PE, PA, PC, ABS, AS etc
Material&Processes
1) High Quality 38CrMoAlA
2) Advanced Nitride Processes
3) Corrosion & Abrasion Resistance Bimetal Spraying Process
Technical Parameters
SCREW
1) Nitride Depth: 0.55-0.7mm
2) Nitride Hardness: 850-960HV
3) Surface Roughness: Ra≤0.8um
4) Screw Straightness: 0.015mm
5) Bimetallic Hardness: HRC50-62
6) Bimetallic Depth: 1.5-2.0mm
BARREL
1) Nitride Depth: 0.55-0.7mm
2) Nitride Hardness: 960-1020HV
3) Surface Roughness: Ra≤1.6um
4) Bimetallic Hardness: HRC50-65
5) Bimetallic Depth: 1.5-2.0mm
barrel and twin screw