Vacuum hardening
Technical Parameters:
Nitriding depth: 0.50mm-0.80mm
Nitriding hardness: HRC56-58
Surface roughness: Ra 0.4
Screw straightness: 0.015mm
Hardeness for fully hardened steel: HRC56-64
ZHOUSHAN JINTANG OULIN MACHINERY CO., LTD is located in ZHOUSHAN city, near NINGBO city and SHANGHAI city, Zhoushan city is the capital of Chinese screw and barrel, there has complete industrial& supply chains, experienced engineers& workers, take advantage of these, advanced design and production technology can be used in our products.
Chinese market is our main market and we started to export screw barrel since 2012, now our products were exported to over 20 countries, like India, Spain, Chile, Italy, Iran, Mexico, Turkey, Russia and others.