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Conical Parallel Twin Screw 0.5-0.7mm Nitrided Depth Spray Coating Surface

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Conical Parallel Twin Screw 0.5-0.7mm Nitrided Depth Spray Coating Surface

China Conical Parallel Twin Screw 0.5-0.7mm Nitrided Depth Spray Coating Surface supplier
Conical Parallel Twin Screw 0.5-0.7mm Nitrided Depth Spray Coating Surface supplier

Large Image :  Conical Parallel Twin Screw 0.5-0.7mm Nitrided Depth Spray Coating Surface

Product Details:

Place of Origin: China
Brand Name: General
Certification: ISO-9001
Model Number: Coperion STS75

Payment & Shipping Terms:

Minimum Order Quantity: 50pcs
Price: negotiation
Packaging Details: Packed with glue firstly,and then reinforced with wooden case for outer packing
Delivery Time: 45 calendar days after received your payment
Payment Terms: T/T
Supply Ability: 3,000-5200pcs per month
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Detailed Product Description
Advantage: Improve The Working Life Surface Treatment: Nitrided Treatment Or Alloy Spraying
Materia: 38CrmoAlA Tungsten Alloy SKD61GH113 Material: HIP Powder Metal
HRC: 58-62 Feature: High Anti-wear
Standard: Match Original Design Type: Spline Shaft
High Light:

plastic extruder screw

,

single screw

Shaft for Coperion STS75

 

Material of the screw barrel
Screw barrel adapt high quality 38Cromaia raw material and due to different plastic material , screw barrel can spray bimetallic treatment which with more long service life.

 

Surface Treatment--PTA Machine
The bimetallic treatment of our screw by the PTA machine. It is a advance equipment which has not been broadly used in bimetallic treatment. Compare to the manual process the advantage is better temperature stability, dense structure and uniform thickness and not liable to crack.
 
Centrufugal Barrel Bimetallic
The bimetallic barrel is centrifugally cast a 2~4mm thick alloy coat on the output section of barrel inner wall which has excellent corrosion resistance, abrasion resistance and high working temperature. And its useful service life is greatly improved contrast to the common nitrided barrel. Bimetal has more obvious advantages when processing high calcium carbonate powder PVC mixture to enhance the abrasion life.
 
Application
The screw can be work for PVC UPVC pipe tube extrusion, for sheet film extrusion and for profile extrusion.
The screw barrel will design according to customer demand like raw material, final product and output
 

Specifications:

General’s Spline design, made of high alloy steel, reduces stress concentration. Shafts are made of round steel-40CrNiMo.Shafts made 

of round steel- 40CrNiMo with great heating treatment have highly hardness(HV>30)and torque.,attached isshafts for Coperion STS75.

 

Product conical double screw
Material 38 CrMoAlA(JIS SACM645); 42 CrMo(AISI 4140)
Cr12MoV(JIS SKD-11);4Cr5MoSiV1(JIS SKD-61)
Nitrided Hardness HV900°~1000°
Hardness after hardening and tempering HB260 °
Nitrided Depth 0.5~0.7mm
Nitrided Brittleness above 2 stage
Surface Roughness Ra0.4
Screw straightness 0.015mm
Hardess of surface chromium-plating after Nitriding HV≥950HV
Chromium plating Depth 0.05~0.10mm
Alloy Depth 0.8~3.0mm
Alloy hardness HRC56°~65°
Alloy(bimetallic) iron,nickel,tungsten,molybdenum
Types of screw barrel Gradual type,mutant type,wave type,barrier type,double screen type,shunt type,separation type,exhaust type,pin type,mixed type,double-head type,three-head type,multi head type etc.

 

Grade available:
1. Standard grade: 38CrMoAlA + nitriding 96 hours
2. Bimetallic grade: 38CrMoAlA + bimetallic alloy
3. TC-A grade: Tungsten carbide 40%
4. TC-B grade: Tungsten carbide 25%
5. TC-C grade: Tungsten carbide 9.5%

Or other according to requirement, we are rich experience in producing and designing!

 

Description:

We are the first screw element manufacturer in China, with more than 20 years' manufacturing experience, our screw element,barrel, shaft are produced by HIP material import from Germany to be same anti-wear& anti-corrosion , our customer including Europe extruder manufacturers, and world’s leading polymer compounders like Aschulman,Polyone,Covestro,DSM enginering plastic ,Lanxess.

Any questions,please feel free to contact us.

 

 

Applications:

Code no Remarks Hardness Wear Corrosive Application
Gen-00 Nitride steel HV-950-1100 3 2 General Plastics
Gen-06 Ingot high speed steel HRC-59-62 5 2 Engineering Plastics, Wear Resistance
Gen-11 Ingot Die Steel, SKD11 / D2/1.2379 HRC-58-63 4 2 General Plastics
Gen-44 Stainless steel SUS630   3 6 Engineering Plastics, Corrosive Resistance for Filler, FG Filler
Gen-09 CPM9V   6 6 Engineering Plastics,High Wear Resistance
Gen-10 Powder high spped steel X245/SAM10 HRc 61 ~ 65 8 3 Super Engineering Plastics, Wear Resistance for Filler, FG Filler
Gen-39 X235/SAM39   6 8 Super Engineering Plastics, Corrosive Resistance for Filler, FG Filler
Gen-60 ASP60/MM60   9 9 Super Engineering Plastics, Wear Resistance for Filler, FG Filler

 

 

Scope of application

WPC sheet,pallets,pinch,pipe,profiles,soft pvc,pvc foam sheet,film,tape,recycled,tape tube,water pipe,drainage pipe,etc.

 

For good plasticizing effect,we have different designs of screw and barrel for extruder or injection to meet customer's demand. Our factory manufactures with high-quality material, applying the method of hardening and tempering and nitriding, thus it enjoys the characteristics of long working life, wear resistance, and anti corrosion. Besides, the technique of hard alloy spraying or chrome plating can be used on the working surface of screw, which will make it have better using effectiveness.

 

Competitive Advantage:

All dimensions including out diameter, Hole size tolerance, Root diameter,Parallelism of end surface,Verticality are in accordance with technical data.

 

Contact Details
Nanjing General Extrusion Industry Co., Ltd
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