High Quality Bimetallic Barrel, Plastic Screw Barrel, Plastic Injection Screw Barrel Suppliers in China

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Alloy Steel Of High Quality Bimetallic Screw Barrel For Plastic Extruder Machine 

  • Alloy Steel Of High Quality Bimetallic Screw Barrel For Plastic Extruder Machine 
  • Alloy Steel Of High Quality Bimetallic Screw Barrel For Plastic Extruder Machine 
  • Alloy Steel Of High Quality Bimetallic Screw Barrel For Plastic Extruder Machine 
  • Alloy Steel Of High Quality Bimetallic Screw Barrel For Plastic Extruder Machine 

Alloy Steel Of High Quality Bimetallic Screw Barrel For Plastic Extruder Machine 

    Packaging: wooden case(export standard) 

Product Description

QunYing Screw is leading supplier of SCREW and BARREL in china,including designing,manufacturing and sales for these products,we can make any specification of extruder screw barrel and injection molding screw barrel for Haitian,Demag,Engle,Nigrobossi,KMD,NPM,BOY,HUSKY, Nippon Steel, Toshiba, Nissei, Mitsubishi and etc. We also can supply all types of screw and barrel according to your different requirements.  

A bimetallic barrel is casted on the inwall with a 2-3mm alloy lay-out,which is wear-resisting\anti-corrosiveand anti-high-temperature.Its effective life has been highly improved compared with ordinary nitriding barrel.The bimetallic barrel is with particular speriority in processing engineering plastics\fluorinated plastic\polysulfone\PPO and other special plastic.Bimetallic alloy and welding method shall be varified according to all kinds of functional screws and barrels.

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!
Material & Processes of bimetallic screw barrel for plastic extruder
Alloy-steel of High-quality
1)38CrMoAlA
2)42CrMo
3)CW6Mo5Cr4V2
4)Quality Duplex Stainless Steels
5)Quality Powder Metallurgy Raw Materials
6)Cold/Thermal Spray Hard Metal process
7)Advanced nitriding Process
8)Corrosion & Abrasion Resistance Bimetal Spraying Process
technology Specification of bimetallic screw barrel for plastic extruder
1)Hardness After Hardening & Tempering:HB240-290
2)Hardness of nitride layer:HV850-1000
3)Nitrided Case Depth:0.45-0.7mm
4)Nitrided Brittleness:Less Than Grade 2
5)Surface Roughness:Ra0.4
6)Screw Straihgtness:0.015mm
7)Surface Chromium-Plating's Hardness After Nitriding:≥900HB
8)Chrominm-plating Depth:0.05-0.10mm
9)Alloy Hardness:HRC50-65
10)Alloy Depth:0.8-2.0mm
The foreign material we used as following
*Germanysteel, GH113 ,2250 ,2842 ,1.8509 ,1.442 ,1.6582 ,1.6523 ,1.2080,1.4542,
*USAsteel, P20,420,L6,H13,W110,D3,A2,D6,O1,S1,M35,8620,3115,K52440
*Swedensteel, 718S,718H,S136,S136H,STAVAX,ASP-23,ASP-30
*AustraliaSteel, M202,M300,W302,K460,W300,K900,K100,W321
*Hardnesssteel, YG6X,YG 6A,YG 6,YG8N,YG8,YG8C,YG11C,YG 15,YT5,YT14,YT30
*JapanSteel, SKT 4,YXM 4,YXM 42,SNC 815,SK -3,SKS 3,and etc.

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
If you have any inquiry, do not hesitate to inform us.
bimetallic screw barrel for plastic extruder has been presented above, want more similar products, please click bimetallic screw barrel for plastic extruder.
Our bimetallic screw barrel for plastic extruder is good in quality and competitive in price. We manufacture bimetallic screw barrel for plastic extruder and supply all size of screw barrel according to your requirement.

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.

Technical Parameter
Base Material 1)38CrMoAlA(JIS SACM645);2)Cr12MOV(JISSKD-11) ;
3)4Cr5MoSiV1(JIS SKD-61) ;4)42CrMo(AISI4140)
Bimetallic Alloy Materials 1)Fe-based alloy2)Ni-based alloy/Deloroalloy
3)Co-based alloy4)NiCo-based alloy
5)Tungsten carbide/Wolframcarbide
Double-alloylevel Level A - containing Tungsten of40%
Level B - containing tungsten of 25%
Level C - containing tungsten of15%
Surface Treatment Heat Treatment
High FrequencyTreatment
Nitriding treatment(120Hours):
Depth of Nitrided Layer: 0.5-0.8mm
Hardness of Nitrided Layer: 900-1020Hv(HRC56°-65°)
HardChrome Plating treatment:
Thickness of Hard Chrome Plating Layer:0.05-0.10mm
Hardness ofHard Chrome Plating Layer: ≥950HV
Nickel alloyplating.treatment:
Bimetallic Barrel/Cylinder: Centrifugal Casting(Inlay Alloy)
BimetallicScrew: Plasma Alloy Coating Spraying
Depth of Bimetallic Layer: >2mm
Hardness of Bimetallic Layer: HRC55°-72°
Spraying corrosion wear-resisting dual metallayers
Basic information Roughness of thesurface:Ra0.4um
Linearity of the screw: ≤0.015mm
Linear axis limit:≤0.02mm
Hardness afterHardening & Tempering: HB240-280
Fragility ofNitration:≤Twoclass
Material Application 1)GeneralPlastics
2)ABS,PA,PC,PE,PET,PP,PS,EVA,PU,PVC,U-PVC,etc
3)PA + GF(GlassFiber)
4)Flame-resistant Reinforced Plastics
5)Modified EngineeringPlastics
6)All kinds of Mixed Recycled Material(in Scrap or Granule), PVC +30% CaCo3, etc
Quality Certificate:
100%Quanlity Inspection
As the bimetallic screw barrel for plastic extruder 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 bimetallic screw barrel for plastic extruder.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



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High Quality is Our Obligation

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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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