Name: Screw and barrel of rubber extruder
Specification:  φ 15-   φ  300   L/D: 15-45 

Material:  High quality38CrMoALA

Technical Index

 

Nitrogen layer deepness: 0.5-0.7mm
Chrome-plating hardness: HV＞850
Chrome-plating layer  hardness: 0.03-0.06mm

Alloy layer deepness: 1.2-2.0mm

Alloy layer hardness: HRC＞65

Surface layer hardness: HV900-1000
Surface cleaness: 0.4Ra/um
 

         Zhoushan Sitong Plastic Machinery Co., Ltd located in Zhoushan, which has always enjoyed the reputation of being a “ hometown of screw, is an early domestic company that professional in the production of precision screw and sol tube in large-scale.

         Our company specializes in making high temperature barrel & screw, wear-resisting barrel & screw and conventional barrel & screw, etc. Products are made of high quality alloy steel (38CrMoALA) and characterized with wear-resistance through fine workmanship such as the tempering qualitative, surface nitriding and polishing, which are the ideal matching products for injection molding machine, extruder, rubber machinery manufacturer and so on.