With around 20years experience ,we can design all kinds of screw and barrel according to client's request .

Specifications: Screw diameter: 15mm-300mm L/D Ratio: 10-56

Materials: 38CrMoAlA, 6470E, En41B, 38XMHOA, 34CrAlMoS1.8507, 45CAD6-12, SACM1.

Spray Coating Bimetallic-alloy Materials: (1)Carbide + Alloy (2)88Wc/12Co (3)CrC-NiCr (4)Ni60

Processing Technology: Heat treatment, Nitriding treatment, High-frequency hardening, Spray coating bimetallic-alloy, Vacuum quenching.

Types Of Extruder Screw: Gradient-type, Mutant-type, Wave-type, Shielding-type, Double shielding-type, Conical-type, Shunt-type, Separation-type, Exhaust-type, Pin-type, Mixing-type, etc.

Nitriding depth: 0.4-0.7mm Nitriding hardness: 850-1020Hv Nitriding brittleness: Less than grade one Screw straightness: 0.015mm The surface hard chromium plating hardness: Bigger than 850Hv Hardness of alloy: HRC 62 degree Chromium-plating layer thickness: 0.03mm-0.08mm Depth of alloy: Deeper than 2mm