The screw diameter, 20, 25, 30 optional 
The screw rotation speed: 0-200 - RPM frequency control of motor speed 
Length-diameter ratio: 1, the other length to diameter ratio (10 ~ 30 times) optional 
Screw material: 38 crmoal chromium molybdenum alloy, surface conditioning, nitriding, chromium plating, polishing and super fine yan grinding process, such as HV 850 or higher hardness, roughness Ra acuities were 0.4 um, nitriding depth to 0.6 mm or more 
Add hot zone: cast aluminum heater cylinder 3 area, the nose area 1 heater, each zone heat sink, coated with stainless steel security wind shield 
Cooling device: more than 3 groups vane super quiescent forced air cooling fan 
Driving power: 0.75 KW to 3 KW, frequency control of motor speed. Special configuration extruder gearbox, axial force under more and more durable.
Power source: 3 30, AC380V, 50 hz three-phase five line.