Twin-screw extruder granulator vs. single-screw extruder

Single-screw extruder or twin-screw extruder granulator feeding, stainless steel hopper, inverter imported from Japan. The length-diameter ratio of the screw is 28-56, the screw has a higher speed of 500rpm, the material of the screw element is high-quality alloy steel W6Mo5Cr4V2, the surface hardness after heat treatment is HRC58-60, the material of the barrel bushing is α101, the surface hardness is HRC60-64, the threaded element and the mandrel Adopt a more advanced involute spline connection. Direct-coupled drives help improve power transfer coefficients. Open exhaust and vacuum ports according to the process, the vacuum degree can reach -0.04-0.08Mpa, all stainless steel. Temperature control system: Cast copper and cast aluminum heaters are distributed in different positions of the cylinder according to needs, all stainless steel soft water cooling system, imported solenoid valve.

The direct drive of the motor helps to improve the power transfer coefficient. The length-diameter ratio of the screw is 8-12, and the material of the screw and barrel is high-quality nitrided steel 38CrMoAIA, nitriding treatment, the thickness of the nitrided layer is 0.5-0.7mm, the brittleness is grade 1, and the surface hardness is HV950-1050. The screw core is cooled by water. Rack System: Integral welded steel frame, stainless steel cover, built-in thermal insulation layer. The temperature control adopts the Shengang temperature control meter, which is intelligent, dual-channel, and has high temperature control accuracy. All low-voltage electrical appliances are produced by joint ventures, and are equipped with PLC or PCC systems according to user requirements. Hardened gear transmission, imported bearings, imported oil seals, and forced lubrication of gears. Temperature control system: cast aluminum heater, air-cooled or water-cooled.