Used Extruder Secondhand Extruder Old Extruder Recycle Extruder Waste Extruder Transfer Extruder Rubber Tyre Tire Plastic Silicone Extruding Tread Extruding

   Highlights:1. Screw: 38CrMoAlA high quality nitriding steel, quenched and nitrogen treatment; The spiral surface hardness >HRC62, hard layer depth 0.55-0.7mm; Helical structure in the extrusion and feeding phase with Isometric deep structure; In the plastication stage with main/subsidiary threads structure; This spiral form has the advantage of high strength, high feeding capacity, excellent plastication effect, low temperature of extruding product, shear mixing sufficiently, stable extrusion pressure, good adaptability for all kinds of rubber materials. There is cavity in the middle of screw for heating and cooling system. Make 1 hour water pressure test of 10kg/cm2 for screw cavity. 2. Barrel: Outer barrel is made of high quality carbon steel, An axial channel is drilled in a circle for heating and cooling; Inner bushing adopts 38CrMoAlA high quality nitriding steel, quenched and nitrogen treatment, surface hardness HRC66-70, hard layer depth 0.55-0.7mm; Bushing is installed in the feeding barrel and it is changeable; Bushing outer diameter of the ring is formed with an annular groove for heating and cooling. 3. Feeding device: Consist of feed rolls, roll covers, bearing blocks, gear pairs, bearings, scraping knives and so on. Special advanced design structure can effectively prevent the material into the feed roller support bearings, to ensure the proper running of the feeding apparatus and no leakage of materials. Feed roller surface and anti-rubber groove are quenching treatment, with surface hardness HRC62-70 and hardness layer depth 0.5-1mm. Gear pairs have a separate lubrication system and adopt 20CrMoTi with nitriding treatment & hard layer thickness 1.5mm. Feeding roll gears are high strength and wear-resistance. Feeding device is mounted at the side of the machine body. 4. Feeding zone barrel: Involves body, front bushing and rear bushing. The bushing is made of 38CrMoAlA high quality nitriding steel, quenched and nitrogen treatment, surface hardness HRC66-70, hard layer depth 0.55-0.7mm. Body material adopts ZG270-500, forged with cavity for heating and cooling system. 5. Reducer: Equipped with extruding machine special use level 2 reducer, hardened gear, low noise