Conical twin screw and burrel 38CrMoAIA Double-screw / twin-screw
Material
High quality alloy-steel
1) 38CrMoAIA(JIS SACM645)
2) 9Cr18MoV
Heat-Treatment
Nitriding treatment
Spray bimetallic coating
Quideline of technique
Depth of nitration layer:0.05-0.08mm
Hardness of nitration:900-1000V
Fragility of nitration:less than grand one
Roughness of the surface:Ra0.4
Linearity of the screw:0.015mm/m
The surface hardness of chrom plating after nitrogention:more than 950hv
Chrome-plating layer thickness:0.025-0.085mm
Specification(d/D) | Length(mm) | Ability(kg/h) | Speed(rpm) |
Ф35/Ф37 | 810 | 40-70 | 5-50 |
Ф45/Ф90 | 990 | 50-80 | 5-45 |
Ф50/Ф105 | 1070 | 100-150 | 4-45 |
Ф51/Ф105 | 1220 | 100-150 | 4-45 |
Ф55/Ф110 | 1220 | 120-180 | 4-40 |
Ф60/Ф125 | 1320 | 150-200 | 4-40 |
Ф65/Ф120 | 1440 | 200-250 | 4-40 |
Ф65/Ф132 | 1440 | 200-250 | 4-40 |
Ф70/Ф140 | 1460 | 220-300 | 4-40 |
Ф75/Ф150 | 1480 | 250-320 | 4-35 |
Ф80/Ф143 | 1800 | 300-360 | 4-35 |
Ф80/Ф156 | 1660 | 300-360 | 4-35 |
Ф92/Ф188 | 2000 | 400-500 | 3-35 |
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