Double-alloy screw feed tube (barrel, barrel) mainly for injection molding machines, extrusion machines, rubber machines. According to customer requirements, design different screw, cylinder 1. Processing range: Minimum inner hole Φ14, maximum Φ300X8000mm 2. raw materials:. SACM645, SKD61, West Germany, 8407, HPT material, Assab Swedish steel, 38CrMoALA 3. Surface Roughness: Ra0.4μm 4. straightness: 0.015mm / m 5. Technical Specifications: quenching time 28 hours or more, quenched hardness HRC26-30 degree of vacuum gas nitriding time is 96 hours or more, nitriding hardness HRC62 or more, Screw straight 0.015mm 6. Double Alloy technical indicators: the imported alloy powder Xaly108NicrWCCO, evenly sprayed on the screw surface and cast tube bore, alloy layer can reach 2.0mm-3.0mm 7. Scope: ordinary plastic PP, PS, ABS, PC, PMMA, PVC, PPA, PPS, LCP, etc. 8. treatment: nitriding, hardening, spray alloys, hard chrome plating. If you like long fingers, how to meet the different needs of users? Jinxin never compared to just break their own people! We have been working hard! Every year, every day, we are making progress! We lead, others follow. Jinxin - to create a new era of Chinese runner. Production falters ------ Select Jinxin try? Give me a trust, but also you very responsibility! National free hotline: 4000-822-881 call us: Miss Wei 133 4296 3865 0755-27188830 NOTE: Because of the different needs of each product, so the product specifications also vary. If interested, call the company directly, the company will have professionals to serve you