
Basic Info
Technics: Casting
Base Material: 38crmoaia,42CrMo
Depth of Nitrogen Layer: 0.6-0.8mm
Straightness of Screw: 0.015
Trademark: JS-ALLOY
Origin: ZHOUSHAN
Place of Origin: Zhejiang China
Tempering Hardness: 240-280hv
Roughness of The Surface: Ra0.4um
Depth of Alloy: 2.5mm-4mm
HS Code: 8477900000
Product Description
About us :
Jinsheng team aim at providing the best services to customers which include providing short lead time, best price and best after sales services. These allow us to create good relationship with customer. Moreover, our engineering department can design special screw and barrel design for some special plastic material such as HDPE, LDPE. This special design can provide high output with low energy consumption. With our great effort on product quality and services, we win a lot of support from different customers which from machinery and plastics field. we will make improvement continuously so as to win customer support from different countries.
Due to our high quality products and outstanding customer service, we have gained a global sales network reaching America, Germany, Brazil, Russia, Ukraine, India, Pakistan,Egpyt,Argentina and some other countries and regions.
Main technical parameters:
Material: 38CrMoAIA 40CrMo 42CrMo high quality alloy steel
Technology: Nitriding treatment, alloy coating spraying, heating treating, screw fully hardening.
Depth of nitrition layer: 0.5-0.8mm
Nitriding treatment surface hardness: HV>=900-1000
Fragility of nitrition: Less and 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
Technological Process:
Blanking, Rough Machining, Quenching & Tempering, Semi Finishing Machining, Finished Product, DetectingNitring/Alloy Processed, Finish Machining
Packing for Stainless steel screw and barrel
1) Wooden case package
2) Plastic film package
3) Suitable to transportation
4) As buyer request
5) One piece into one package
After-Sales Service
1. If the after-sale problems we will reply you in time of after-sales request.
2. We have a large number of professional and technical personnel, engaged in equipment design and development work, has a wealth of practical experience. Can provide you with the best after-sales service.