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Heat Resistant Extruder Machine Parts , Injection Molding Machine Screw Shaft

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Heat Resistant Extruder Machine Parts , Injection Molding Machine Screw Shaft

China Heat Resistant Extruder Machine Parts , Injection Molding Machine Screw Shaft supplier
Heat Resistant Extruder Machine Parts , Injection Molding Machine Screw Shaft supplier

Large Image :  Heat Resistant Extruder Machine Parts , Injection Molding Machine Screw Shaft

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
Type: Spline Shaft Material: HIP Powder Metal
Application: Polymer Compouding Standard: Match Original Design
Product Name: Theysohn Screw Element Out Diameter: 75 Mm
HRC: 58-62 Feature: High Anti-wear
High Light:

extruder screws and barrels


injection molding machine screw

Shaft for Coperion STS75


Maintenance of screw barrel:
1, the barrel does not reach the preset temperature, do not start the machine. The new electric heating generally requires the temperature to reach the set value of 30 minutes after the operation of the screw
2, each down more than half an hour or more, it is best to close the material inlet and clean the barrel, set insulation
3, to avoid the foreign body falling into the material barrel damaged screw and barrel. To prevent debris and metal debris falling into the hopper, if the processing of recycled materials, we need to add magnetic hopper to prevent iron filings into the barrel.
4, the use of anti saliva to determine the barrel of plastic melt completely, so as not to damage the transmission system parts screw back.
5, to avoid the phenomenon of idling and slipping of screw.
6, the use of new plastic, the material should be cleaned out of the material. The use of POM, PVC, PA+GF and other materials to minimize the degradation of raw materials, after the shutdown in a timely manner
7, avoid the POM and PVC at the same time mixed with the barrel, in the melt temperature will be a serious industrial accident caused by reaction.
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!



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.


Product Name
Alloy barrel screw
Silvery white


Country of origin
Country of origin
Single-lead helical structure



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.



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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