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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: shenglong
  • Model Number: conical twin screw barrel
  • Depth of Nitrated Layer: 0.5-0.8mm
  • Hardness of nitration: 900-1020Hv
  • Fragility of nitration: Less than grade 1
  • Surface roughness: Ra 0.4um
  • Thickness of Cr-coated Layer: 0.03-0.08m
  • Hardness of Bimetallic Layer: HRC55-72
  • Depth of Bimetallic Layer: >2mm .

Packaging & Delivery

Packaging Details wooden case
Delivery Time 30days

  good price  with  high  quality

if  you have any requirements in screw and barrel,

feel free to contact us.

Product Description

 

65/120 concial twin screw barrel for extruder


 

Diameter
Φ15mm-350mm
Designing
Screw structure and compression
ratio can be designed according
to different products  & different output requirement.
Materials
38CrMoAlA
(JIS SACM645)
SKD61
Application
Suit for hdpe ,ldpe, lldpe recycling.
Nitride Case Depth
0.5mm-0.8mm
Technology
1)Longer time Gas Nitriding treatment
2)special anti-wear & abrasion alloy (bimetallic)
3)tungsten carbide
4)cobalt base alloy
5)stainless steel
6)Gh113 nickel based alloy  
advantages
1.Advanced Nitriding Technology 
2.Anti-corrosion and Wear-resisting Duplex Metal Spraying Technoloy
3. we uses special alloy powders being sprayed and welded on the screw's ridge,and uses different alloy and welding methods for the screw of different functions.
4.Fast and on time delivery .
5.Longer lifetime for the screw barrel.
Nitride Hardness
950-1020HV
Packing
Wrapped up by film in wooden
Nitride Brittleness
≤Grade One
Payment Term
T/T , L/C
Surface Roughness
Ra0.4um
Delivery Term
25 working days
Screw Straightness
0.015mm
Port Departure
Shanghai/Ningbo
Alloy Hardness
HRC58-62
Min. Order
1 set
Alloy Depth
0.5mm-0.8mm
Common Nitrided:1years
Bimetallic: much longer lifetime.

 

 
 

Production procedure

CustomerOrder--ProductDesign(CustomerDrawing)

ProductionFlowArrangement

MaterialProcurement

Hardening&Tempering

Drilling—RoughTurning—RoughThread

Rolling(AlloySprayWelding)

Alignment—FineThreadRolling—Mixing

Alignment—HighFrequencyTreatment

Alignment—Polishing—Grinding

120HoursNitridingTreatment

AcidPiclking—Polishing—Chrome Plating—O.D.Grinding—Packaging&Shipping!

 

Packaging & Shipping

 PACKAGING :WOODEN CASE

 

 

PORT: SHANGHAI/NINGBO

 

 

Company Information

 

FAQ

 

1. Q: How about shenglong? 

    R:zhoushan Shenglong Machinery Co.,Ltd specilized in design and manufacture of a full series of screws and barrels, applied for various extruding machines and plastic injection molding machines. In addition, we also design and manufacture screws with special alloys and special flight geometry to meet specific customer applications. We not only offer the best possible screws and barrels, but also provide solutions to help customers solve extruding and injection molding problems. 
2. Q:What's shenglong capacity? 
   R:Passed ISO 9001:2008, 1000sets screw barrel capacity per month.


3. Q:What's the delivery time? 

    R: normally 3~4weeks.

 

4.Q:How about shenglong screw barrel quality and price? 
   R:top quality in China with competitive price and globle after-sale service


5. Q:How to make sure the screw suitable for my extruder?  
    R:Let's know what size you want and we can check it with our drawing.We have lots of    Haitian, Demag, Engle, Nigro bossi, Arburg, NPM, Cincinnati Battenfeld, Amut,BOY, Husky, Fanuc, billion, Sumitomo, Nippon Steel,Toshiba, Nissei, Mitsubishi and etc.If your  extruder is made in China,it's easy to  get the original drawing.


6. Q:what's the life time and guarantee buy from shenglong screw barrel?
    R:3~5years life time for nitriding ones and bimtallic ones will be longer 
       One year min. Guarantee


7.Q:Where is shenglong  factory and how to reach there? 
   R:At jintang,Zhoushan City,Zhejiang Province. It's near Shanghai City and Ningbo City,If you want to visit us,we can pick up you there.

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China (Mainland) | Manufacturer, Trading Company
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