XPS insulation board extruder screw barrel

• Specification

Screw diameter: Ø12-300MM   L/D:15-55
Barrel diameter:  Ø25-500MM      Length:300-1000MM

• Material

38CrMoAlA(JIS SACM645)

Cr12MOV(JIS SKD-11) 
4Cr5MoSiV1(JIS SKD-61) 
42CrMo(AISI 4140)

9Cr18MoV
Stainless steel,etc.

• Parameter

Roughness of the surface:Ra0.4um

Linearity of the screw: ≤0.015mm

Linear axis limit: ≤0.02mm

Hardness after Hardening & Tempering: HB240-280

Fragility of Nitration:≤Two class

• Feature

XPS screw barrel is specifically for XPS foam board, XPS foam insulation board, XPS foam sheet, XPS foam tube, XPS foaminsulation tube. Raw material is XPS, PS and so on.