Injection screw barrel professional manufacturer China for auto parts

Screw barrel is suitable for machine tonnage from 60 tons to 4000 tons. Some in stock, fast delivery.

Specifications and application

Specifications: diameter: Φ14-Φ250mm,

Nitriding depth:0.5mm-0.8mm

Nitride hardness: HV850-1000,

Chromium plating thickness: 0.05mm

Alloy depth: 1.5-3mm

Scope of application: PP, PE, ABS, AS, PS, PC, PET, bakelite

For machine brand: HAITIAN, CHEN HSONG, BOLE, BORCHE, YIZUMI, TEDERIC, WELLTEC, HAIDA, JSW, Mitsubishi, FANUC, TOSHIBA, SUMITOMO, NISSEI, TOYO, LG, TAIWAN-CLF, KRAUSMAFFEI, DEMAG, ENGEL, MILACRON, ARBURG, etc.

For applications: Car lamp shell, large parts automotive interior parts, car bumper, mobile phone shell, TV shell, washing machine, refrigerator, power switch, microwave lunch box, water cup, plastic stool, plastic table, plastic flower pot, drying rack, plastic toys, plastic basin, cosmetic bottles, cosmetic LIDS, disposable syringes, etc. Fruit basket, PVC pipe fittings, Plastic products, like chair, desk, furniture, PC car products, 3C plastic products.

We can provide corresponding accessories according to the custom’s demand such as screw head, check ring, seat ring, nozzle, nut, flange, etc, and design special screw along with drawing. 

Technical Index

●Technical specification

Hardness after hardening& tempering: HB260-290

Nitrided hardness: HV850-1050

Nitrided case depth:0.5-0.8mm

Nitrided brittleness: less than grade 2

Surface straightness: 0.015mm

Surface roughness: Ra 0.4

Surface chromiun-plating’s hardness after nitriding: ≥900HB

Chromiun-plating depth:0.03-0.10mm

Alloy hardness: HRC55-65

Alloy depth: 1.5-3mm

●Material &processes

Quality 38CrMoAIA SACM645 (1.8509)

GH113 HC-276, 42CrMo, CW6Mo5Cr4V2, 9Cr18MoV

SKD61, DC53, SUS440

Quality powder alloy steel HPQ1#、HPQ2#、HPQ3#

Advanced nitriding process, Vacuum ionic hardening

Corrosion&abrasion resistance bimetal spraying process