Conical double screw
1.Material:38CrMoAIA
2.Nitriding treatment.
3.Surface hardness:HV>900.
4.Nitriding depth:0.5~0.8.

38CrMoAIA conical double screw details:

screw barrel Material of screw:38CrMoAIA.screw barrel through Nitriding treatment,Surface hardness:HV>900.screw barrel Nitriding depth:0.5~0.8mm.screw barrel Screw diameter:from 15mm to 300mm.screw barrel Max length of screw:10000mm.pvc screw barrel Material of barrel inside layer:Tungsten alloy ,Surface spraying,prolong life of screw.Barrel Heating zone: Cast aluminum ring heater + Stainless steel shell + cooling fan.Cooling device: Fan with air as the media to provide accurate temperature control. Barrel cooling method:Cylinder surface groove, set with brass, aluminum heating tank and inner wind circle, with oil cooling and air-cooling at the same time, more precise temperature control.

About our company:

1.Our company starteded at 1989 in zhoushan city for barrel screw design and manufacture,first set of extruder was produced in 1993.

2.Within growing experiences of machine design and manufacturing, we move to shanghai for foreign business in 1997.

3.Till now we have customers in South America( Brasil,Argentina,  Columbia),  Europe(UK,  Spain,Spain,Russia,Poland,UKraine), Asia(Indonesia,Bangladesh,India),Middle East(Saudi Arabia,Yemen,Iran,Libya),Africa(Egypt,South Africa,Kenya,Ethiopia).

Russia,Poland,UKraine), Asia(Indonesia,Bangladesh,India),Middle East(Saudi Arabia,Yemen,Iran,Libya),Africa(Egypt,South Africa,Kenya,Ethiopia).

Barrel screw images show: