Name: Paralle twin-screw amd barrel
Specification: φ 15- φ 130 L/D: 16-35
Material: High quality38CrMoALA or 9Cr18MoV
Craft
High quality dual phase stainless steel
Spraying hard metal with heat or cold method
Advanced nitrogen craft
Bimetal technology
Advanced nitrogen process, antifriction alloy spraying to prevent corrosion and abrasion
Technical Index
Specification: φ 15- φ 130 L/D: 16-35
Material: High quality38CrMoALA or 9Cr18MoV
Craft
High quality dual phase stainless steel
Spraying hard metal with heat or cold method
Advanced nitrogen craft
Bimetal technology
Advanced nitrogen process, antifriction alloy spraying to prevent corrosion and abrasion
Technical Index
Tempering Hardness: HB260-290
Nitrogen hardness: 900-1000HV
Nitrogen r deepness: 0.5-0.6mm
Chrome-plating thickness: 0.5-0.10mm
Chrome-plating hardness: HV＞85℃
Alloy Thickness: 0.8-2.0mm
Alloy hardness: HRC50-65
Nitrogen brittleness: ＜ level 1
Surface roughness: Ra0.4u
Surface roughness: Ra0.4u
Straightness: 0.015mm
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.
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