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Rubber screw barrel

Pin Screw and Barrel Specification: Ø75mm~Ø200mm 
Cold/Heat Feed Screw Specification: Ø65mm~Ø650mm

Technical Parameter:

Hardness After Hardening & Tempering:HB280-320

Nitride hardness: 950-1100HV 

Nitride layer depth:0.50-0.80mm

Nitride brittleness: Less than 2 level

Surface roughness: Ra 0.4μm

Linearity of screw: 0.015mm/m

Bimetallic layer depth: ≥3mm

Bimetallic hardness: HRC60-72

Hard-chrome plating hardness after nitriding: ≥950HV

Chrome-plating layer depth: 0.025~0.10mm 

 

Contacts
+86 (580) 8051000 / 8052000
Fax:+86 (580) 8052850
Address:Ligang Industrial Zone,Zhoushan,Zhejiang,China
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