Conical Twin Screw and Barrel - 1

We can according to the customer demand to make the conical twin screw and barrel.

Size:
Φ 45/90, Φ 45/100, Φ 50/105, Φ 51/105, Φ 55/110, Φ 55/120,
Φ 60/132, Φ 80/143, Φ 80/156, Φ 92/188

TECHNICAL DATA
Depth of nitration case: 0.4-0.7mm
Hardness of nitration: HV900-1060 (HRc56° -65° )
Roughness of the surface: Ra 0.4μ M
Screw straightness: 0.015mm/m
Chrome plating thickness: 0.01-0.1mm
Bimetal coating thickness 1.5-2.0mm
Material: base material 38CrMoAlA, Welded inlay on the flight, prolong life of screw. Easy wearing parts of barrel feed inlet made from imported anti-wear alloy can be improvde abrasion performance

Nirtrized thickness: 0.45~0.7mm
Surface roughness≤ Ra0.4
Liner strightness: 0.015mm
Surface hardness afrer Chrome coating ≥ 900HV
Chrome coating layer thickness 0.050.10mm
Bi-metallic layer hardness: HRC56~65
Bi-metallic layer thickness: 0.8~2.0mm.