Lab-twin screw extruder

Specifications

   SHJ 35 twin-screw extruder

A. Gearbox

1. Reduction factor2.5:1
2. Output shaft rotation speedMAX600RPM
3. Input shaft rotation speedMAX1500RPM
4. The compact host machine features integrated speed reduction and torque transfer with a design of parallel three axles. SKF bearings are used in the reducer, torque transfer device and as the radial bearing in the output shaft.

B. Lubrication oil cooling system

1. Motor of oil pump 0.55KW
2. Lubrication oil model: Hai Brand 6402 made in Shanghai, middium load gear oil, model: 85W/90GL - 4.
3. Brand name: xi' an Oil Pump Plant
4. Condenser modelSL - 305
5. Lube oil pump modelCB B6

C. Motor of host machine

1. Motor of host machine22KWAC motor)
2. Motor speed ( MAX)1500RPM
3. Brand name: SIEMENS

D. Screw stem

1. Screw stem diameterScrew stem diameterΦ35.5mm, max. diameter D=Φ35.5mm,min. diameter d=Φ23.5mm, D/d=1.51, center distance: A=30mm, torque: T=115N.M,  torque coefficient: T/A³=4.2.
2. L/D =40:1
3. Screw stem with modular structure
4. The screw core shaft is made of 40CrNiMoA, and the screw thread components connect with the core shaft in an involute curve, which features high intensity, large load, and easy disassembly and assembly.
5. The screw components are made of high quality high-speed tool steel, W6Mo5Cr4V2, that receives heat treatment with vacuum hardening at high temperature.
6. Whole hardness: HRC62-64

E. Charging barrel

1. The barrel body is made of #45 steel, and the "∞" shape hole is lined with wearing proof alloy a-101Fe - Cr - Ni -B+Carbide, hardness: HRC60 - 64, barrel length: L = 150mm/section.
2. The first cylinder is used for feeding materials barrel, the 9th cylinder for vacuum barrel, the 10th cylinder for extrusion barrel and the other cylinders are of closed mouth type.
3. Soft water circulation system

• The barrel uses soft water cooling.
• The soft water tank separates with the body, which facilitates cleaning and service.
• Electromagnetic valveCEME9313 imported from Italy.
• Water pipe are copper pipes coated with chrome.
• cooling method: water cooling
• cooling pump0.55KW
• water tank capacity 150L