1.38 CrMoALA Material
2.Nitriding Depth:0.6~0.8mm
3.High Quliaty Base Material
4.Single Screw And Barrel For Extruder

conical twin screw and barrel for pp sheet extruder

size: 35/75, 45/90, 45/100, 50/105, 55/110, 60/125, 80/143, 80/156, 92/188, 95/188

Material:    38CrMoAlA   

                  high quality alloy steel

Technology: nitriding treatment,

                   alloy coating spraying,

                   heating treatment,

                   screw fully hardening

Diameter: Φ45-Φ200(according to the demands of customers)

L/D ratio of screw: 16-35

Conical dual-hole barrel screw specificaiton: Φ25Φ45-Φ92Φ188(according to the demands of customers)

 The screw compressor can be designed according to different products and formulas

Technology index: Depth of nitrition layer: 0.5-0.8mm

Nitriding treatment, surface hardness: HV≥900-1000

Fragility of nitrition: less than grade 1

Surface roughness: Ra 0.4um

Streightness of screw: 0.015mm

Surface of hardness of nitrated Cr coating layer: ≥950HV

Hardness of Cr coating layer: HRC55-62

Thickness of alloy plating: 0.03-0.08mm

Depth of alloy layer:>2mm

Used for granulation,PP, PE, PA, PC, ABS,AS etc

We can manufacture various kinds of screw barrels according to the customer’s requirement