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Home > Products > Wear Resistant Steel Plate > Full Hardening Screw With Dac Steel Grade B 
Full Hardening Screw With Dac Steel Grade B 
  • Full Hardening Screw With Dac Steel Grade B 
  • Full Hardening Screw With Dac Steel Grade B 
  • Full Hardening Screw With Dac Steel Grade B 
  • Full Hardening Screw With Dac Steel Grade B 
  • Full Hardening Screw With Dac Steel Grade B 
  • Full Hardening Screw With Dac Steel Grade B 

Full Hardening Screw With Dac Steel Grade B 

Product Description

full hardening screw with DAC
Excellent:High wear resistant,anticorrosion,High temperature resistant,special for PC material.
Machining process:
Row material through modulating,shaping,machining and whole vacuum quenching,the hardness for the whole material can be reached to HRC 60-62° and retempering bake to HRC 50-52°,Then nitride treatment to get the hardness HRC 60-62°and the depth come to 0.7-0.8mm.

Screw diameter:Φ15mm-Φ360mmL/D=15-56

Length of screw and barrel/cylinder:8000mm

According to different material and plastic products to design different screw structure ,compress rate and L/D!
According to different material and plastic products to design different Barrel with exhaust system and IKV force load system!

As per customer's demand,we can also supply below:
PVC/PE Film Blowing Screw; Blow Molding Screw; PS/PE/PP/ABS Sheet Extrusion Screw; PE Aluminum Plate;PPR Pipe Screw;EVA Extrusion Screw;HDPE High efficiency Screw;PET Straps Screw;XPS/EPE Foamed Screw;Granulation Screw,Vented single screw etc.
Material
Alloy-steel of High-quality
1)38CrMoAlA(JIS SACM645)
2)42CrMo(JIS SCM440)
3)9Cr18MoV
4)CW6Mo5Cr4V2
5)SKD61
technology
1)Heat-treatment
2)Nitriding treatment
3)Electroplate hard-chrome
4)High-frequency quenching
6)Vacuum quenching
Technical Parameter
Steel Material DIN 41CrA1Mo7 / AST M4140 / GB38CrMoAlA
Deepness of Nitriding Layer 0.7 mm -0.9 mm
Hardness of Nitriding HV900 - HV1,000
Nitriding Brittleness  ≤Grade 1
Chromate plating Thickness 0.05 mm - 0.10 mm, hardnessHV950
Special treatment Carbide coating on screw flight and bimetallicbarrel
Screw straight tolerance 0.015 mm/m
Surface roughness Ra0.4μm
full hardening screw with DAC
Quality Certificate:
100%Quanlity Inspection
As thefull hardening screw with DAC are the important parts for plastic extruders and injection molding machine,they affect the machine performance and quality directly,therefore,QunYing established quality control system strictlyas ISO 9001:2008 International Quality System, our every production process is under strict inspection , Those provides solid foundation for our quality products.What we need to do is to make sure best quality of each screw and barrel.Till now,our screw and barrel has been sold to more than 40 countries in the world and enjoy a good reputation by our customers!

What is ouradvantage
First one:Cretive in designs,our designing team is very strong,since we have unique culture to motivate them,in order to meetrequirement,we work closelyto our customer and market!

Second one:We have over 10 years' experience of manufacturing varied screws, barrels and accessories.We are keeping improving our production stytem day by day on the delievey,quality control,all the efforts have improved the customers satisfaction!

Third one: advantageous geographical position .We are located in China's screw Town-Jintang,Town which is in zhoushan city,near to Ningbo Port and Shanghai Port!




Grade A Qunying parallel twin screw barrel

Grade A Qunying parallel twin screw barrel
Products packing
Grade A Qunying parallel twin screw barrel
Grade A Qunying parallel twin screw barrel
Our Certificate(ISO & SGS)
Grade A Qunying parallel twin screw barrel
Grade A Qunying parallel twin screw barrel



Great Service is Our Mission

High Quality is Our Obligation

Customer First,ContactUs Now!
Zhoushan Qunying Plastic Machinery Manufactory

  Established in the year 2003, we, "Zhoushan QUNYING plastic machinery" are engaged in manufacturing and supplying a diverse range of Screw & Barrel and machines. These products are precision engineered using the best quality raw material that we procure from a trusted vendor base. Furthermore, the long lasting life, resistance against corrosion, dimensional accuracy, robust construction and economical prices of our range makes it suitable for heavy usage in most of the industrial applications. Our dedicated team of professionals ensures that we produce only defect-free products so as cater to the long list of clientele. We possess great process knowledge for designing different set of products according to the specific requirements of our customers. Besides, our team members work in complete synchronization with the clients for meeting their varied industry needs and demands.

Company Info
  • Company Name: Zhoushan Qunying Plastic Machinery Manufactory
  • Representative: Lu Miaojun
  • Product/Service: Bimetallic Screw Barrel , Injection Molding Screw , Extrusion Screw Barrel , Tungsten Carbide Screw Barrel , Twin Screw Barrel For Pipe , PVC Screws Barrels
  • Capital (Million US $): 300000RMB
  • Year Established: 2003
  • Total Annual Sales Volume (Million US $): US$2.5 Million - US$5 Million
  • Export Percentage: 21% - 30%
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: Fewer than 5 People
  • OEM Services Provided: yes
  • Contact Person: Ms. LU
  • Tel: 86-580-8340889
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