1、Screw diameter：16, 20 (optional)
2、Length ratio：1：25, other length ratios(10 to 30 times) are optional.
3、Rotation speed of screw：0-95rpm frequency control
4、Screw material：It is made of 38CrMoAlA chromium-molybdenum steel. With the surface-layer processing of tempering, nitriding, chroming, polishing and super-precision grinding, the hardness HRC55~60, roughness Ra≤0.4μm, nitriding depth≥0.6mm.
5、Barrel material：It is made of 38CrMoAlA chromium-molybdenum steel. With the surface-layer processing of tempering, nitriding, chroming, polishing and super-precision grinding, the hardness HRC55~60, roughness Ra≤0.4μm, nitriding depth≥0.6mm.
6、Heated zone：4 Mica heaters in the area of charging barrel, 1 heater in the handpiece area. Each area has a copper cooling fin covered with security wind shield.
7、Cooling device：Three groups of multi-wing blowing fans force cooling, quietly and strongly.
8、Driving motor：Precision gear reduction motor
9、Electronic control system：PLC programmable color touch screen, man-machine interface operation system, extrusion process can be displayed and monitored dynamically, Including temperature control, driving, pressure, interlocking spreading function.
10、Power：3∮, AC380V, 50Hz, three-phase and five-line power supply.
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