Before being fed,the rubber material should go through cooking after which the material’s temperature reaches 50-70°C.
Meanwhile,the feeding of the material should be even,steady and constant in velocity. The screw is short and its thread groove is deep. It has many advantages like continuous extrusion, simple operation, high efficiency and stable finished form.
It is used for the extrusion of various treads in the tyre production and for the extrusion of rubber coatings and compounds in the production of rubber tubes, wires and cables, etc.
| Diameter | L/D | Rotating Speed | Powe | Capacity |
| Φ45 | 4.5 | 7.6-76 | 5.5 | 40 |
| Φ60 | 4 | 7.6-76 | 7.5 | 80 |
| Φ65 | 4 | 7.6-76 | 7.5 | 80 |
| Φ85 | 4.76 | 7.9-79 | 18.5 | 180 |
| Φ90 | 4.5 | 7.9-79 | 18.5 | 260 |
| Φ115 | 4.66 | 7.9-79 | 30 | 300 |
| Φ120 | 4.46 | 7.9-79 | 30 | 530 |
| Φ120 | 5.5 | 7.9-79 | 37 | 530 |
| Φ150 | 4.6 | 6-55 | 55 | 1050 |
| Φ200 | 4.35 | 5-45 | 75 | 2000 |
| 250 | 4.5 | 5-45 | 100 | 3800 |
