45 visiting now: 16 USA USA flag 13 France France flag 7 UK UK flag 4 China China flag 3 Russia Russia flag 1 Canada Canada flag 1 Germany Germany flag

Highlighted Companies



Screw For Rubber Machine - China

price: contact company for price

Product Specification and technical data
inner Diameter:Ø45-Ø300
L/D=8~20
Hardness of quenching and tempering:HB240°~280°
Hardness of nitration:HV850°~1000°
Depth of Nitrated Layer:0.45~0.7mm
Fragility of nitration:≤ Grade 2
Surface roughness:Ra0.4
straightness:0.015mm
Hardness of Cr-coating Layer:HV≥900HV
Nitrided layer thickness:0.05~0.10mm
Thickness of Cr-coated Layer:0.8~2.0mm
Hardness of bimetallic:HRC56°~65°(Ni-based alloy)

Material :quality alloy steel
① 38CrMoALA(JIS SACM645)
② 42CMo(JIS SCM440)
③ 9Cr18MoV
④ CW6Mo5Cr4V2
Heat-treatment:
Nitriding treatment
Electroplated hard-chrome finish
High-frequency quenching
Spray coating Bimetallic-alloy
vacuum quenching

1) high temperature, high temperature deformation;
2) wear resistance, long life;
3) resistant to corrosion, corrosive materials;
4) high intensity, which can withstand high torque, high speed;
5) has a good machinability;
6) The residual stress after heat treatment, thermal deformation and so on.


Company Contact:


  • Phone: +8657489075950

  • Address: NO.16 XINGHAI SOUTH RD, HI-TECH ZONE, Ningbo, Zhejiang, China

  • Email: Email


Published date: August 11, 2016 -

  • Business Description: Ningbo Superior Machinery Co.,Ltd was founded in 1992,which is one of the earliest manufacturers of screw and barrel for plastic processing machine in China. We are aiming at serving small-scale corporations during our early business period and we have served more than 1000 small or middle-scale corporations producing various kinds of plastic products so far. This fact has lead to an extensive accumulation of technological”know how”and experience for us.

Related listings



  • Pellets Cutting Machine
    Pellets Cutting Machine
    Plastic Working Machinery - GuangDong HongQi Plastic Machinery Manufactures - China - October 14, 2017 - 3000.00 Dollar US$

    Product Name:Plastic cutting machine Best Quality best quality PC PE PP plastic pellets cutting machine Model: HQ-10 Competitive Advantage: 1. Low noise. For whole machine, material is more thick then the similar product in the market. So machine wor...

  • Waste Pp Pe Flakes Recycling Granulate Extruder
    Waste Pp Pe Flakes Recycling Granulate Extruder
    Plastic Working Machinery - GuangDong HongQi Plastic Machinery Manufactures - China - October 14, 2017 - 34000.00 Dollar US$

    Waste PP/PE flakes recycling granulate extruder Machine Application: For material : ABS, PC, PP, PE, HIPS, TPU, PA coloration, mix, modified, added, composite, recycling, make granular. Professional in PC material. Can make the pellets more beautiful...

  • High Quality Pc Pellets Extruder Machine
    High Quality Pc Pellets Extruder Machine
    Plastic Working Machinery - GuangDong HongQi Plastic Machinery Manufactures - China - October 14, 2017 - 35400.00 Dollar US$

    Single-screw extruder Model: HQ-120 HongQi Single-screw extruder Top performance at a favourable price. HongQi single-screw extruders form the basis for high-quality plastic products. Our portfolio includes technical solutions ready for use in many a...



Safe Trade Tips

  • Ask for business references and check them
  • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
  • Verify their business via their local Chamber of Commerce
  • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
  • Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
  • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"