PVC conical twin screw barrels
Specification
D35/75- 92/188mm
Model SJSZ-51 SJSZ-55 SJSZ-65 SJSZ-80 SSJZ-92 Screw Dia.(mm) 51/105 55/110 65/132 80/156 92/188 Max.Speed (rpm) 40 38 38 37 36 Main Motor(KW) 18.5 22 37 55 90 Output (KG/h) 80-100 100-150 150-250 250-280 380-700 Material
Parameter
The two main types
Degree of Abrasiveness | Low | Moderate | High |
Screws | Nitrided | Bimetallic spraying | Tungsten coated |
Barrels | Nitrided | Bimetallic | Bimetallic |
Depth of Nitrated Layer: 0.5-0.8mm
Heat treatment: Nitriding 96 hours
Hardness of nitration: 900-1020Hv
Fragility of nitration: Less than grade 1
Surface roughness: Ra 0.4um
Co-rotating and contra or counter rotating screw machines have different screw rotations in the barrels and these are shown below: