Our conical twin screw and barrel provide high surface area and low shear screw designs that will optimize the melt homogeneity.
Conical Twin Screw and Barrel Ranges:
| Types of screw(d/D) | Length of work(mm) | Quantity of extruder(kg/h) | Speed of screw rotate(rpm) |
| Φ35/Φ77 | 810 | 40-70 | 5~50 |
| Φ45/Φ90 | 990 | 50-80 | 5~45 |
| Φ50/Φ105 | 1070 | 100-150 | 4~45 |
| Φ51/Φ105 | 1220 | 100-150 | 4~45 |
| Φ55/Φ110 | 1220 | 120-180 | 4~40 |
| Φ60/Φ125 | 1320 | 150-200 | 4~40 |
| Φ65/Φ120 | 1440 | 200-250 | 4~40 |
| Φ65/Φ132 | 1440 | 200-250 | 4~40 |
| Φ70/Φ140 | 1460 | 220-300 | 4~40 |
| Φ75/Φ150 | 1480 | 250-320 | 4~35 |
| Φ80/Φ143 | 1660 | 300-360 | 4~35 |
| Φ80/Φ156 | 1800 | 300-360 | 4~35 |
| Φ90/Φ184 | 2000 | 400-500 | 3~35 |
Heat treatment
Nitriding treatment
Electroplated hard chromium coating
Spray coating anticorrosion
Wear resistant bimetallic coating
| Technical Parameter |
| Material | 38CrMoAIA,9Cr18MoV,42CrMoV |
Hardness of Nitriding | Hv900~1000 |
Deepness of Nitriding Layer | 0.7mm-0.9mm |
Surface Roughness | Ra 0.4μm |
Hardness of Bimetallic Alloy | HRC 55-62 |
Deepness of Bimerallic Alloy | 1.5~2.0mm |
| Screw straight tolerance | 0.015 mm/m |
| Special treatment | Carbide coating on flight |
Deepness of Titanizing Layer | 0.05~0.10mm |
Conical twin screw barrel
