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38CrMoAlA under had chrome plating polishing treatment, water-cooling and compulsive material-supplying section | ||
Screw: | 38CrMoAlA under nitrogen treatment | |
Technical parameter | ||
Screw diameter | 50mm | |
Screw length diameter ratio: | 30:1 | |
Depth of screw nitrogen layer: | 0.4-0.6mm Hardness HV>740 | |
Depth of barrel nitrogen layer: | 0.5-0.7mm Hardness: HV>940 | |
Barrel heating: | 3-section heating , and cast aluminum heating circle with power of 4kw—3section | |
Barrel cooling: | Three section cooling with air. Power of cooling fan is 3 section-0.06kw. | |
Output: | 30- 40kg/h | |
Reduction gearbox: | adopts speed reducer of hard tooth surface specially used for extruder | |
Drive power: | 15kw electrical motor. Speed regulating of frequency control | |
25kg hopper dryer | one set | |
Vacuum auto-charger | one set |