Specifications
1. Screw and barrel for extruder: ¦µ15-¦µ300
2. Ratio of length to diameter: L/D=15-46
3. Screw and barrel for injection

Moulding machine:
Clamping force: 25-3200tons
Injection capacity: 30g-25000g

Technical data
1. Depth of nitration case: 0.5-0.8mm
2. Hardness of nitration: 900-1000HV
3. Fragility of nitration: Grade 1
4. Roughness of the surface: Ra 0.4¦Ìm
5. Nitration screw especially for bakelite.

1. Screw of stainless steel: Apply to PC, PVC, acrylics, transparent materials;
2. PTA bi-metal screw-1: Matrix material 42CrMo2, matrix material 38CrMoALA3, matrix material SKD61
3. PTA PF screw

Adopt according to the customers'need.