ZHonGYANG offers extrusion parallel double screw and barrel for extruders in full specifications.We can make any design according to customers' requirements.

Material:High quality alloy steel

           1)38CrMoAlA

           2)Nickel based alloy powder

Technics:1)Heat-treatment

              2)Nitriding treatment

              3)Hard-chrome electroplating

              4)Bimetallic-alloy coating spraying

Technical parameter

Nitriding depth:0.50-0.80mm

Chrome depth:0.025-0.085mm

Bimetallic depth:3mm

Nitriding hardness:900-1000HV

Nitriding brittleness:Less than grade 1

Surface roughness:Ra0.4

Linearity of the screw:0.015mm

Hardness of the chromium plating after nitriding:More than 950HV

Chrome plating thickness:0.025-0.085mm

Terms and Conditions:
Payment Terms:T/T,L/C or others
Packing: Wooden Case (Export standard)
Lead Time: 35 days after receiving the payment
MOQ.:1 Set
Warranty: 1 Year