Plastic Crossed Round Head Screw

Plastic Crossed Round Head Screw

Basic Info Type: Bottle Blowing Machine Screw: Single-Screw Computerized: Computerized Base Material: 38crmoala Nitrided Layer Depth: 0.5-0.8mm Surface Roughness: Ra 0.4 Bimetallic Layer Depth: 3 Mm Hardness After Hardening&Tempering: Hb240-280 HS Code: 8477900000 Plastic Processed: PE...
We are also focusing on improving the stuff management and QC system so that we could keep great advantage in the fiercely-competitive business for 38CrMoAlA barrel, Extruder Machine Spare Parts, screw rocket for injection. In order to practice 'excellent quality comes from technological innovation', our company has spent a lot of effort in developing new products. Our company holds the enterprise idea of 'innovation, quality, service', and has won the trust of many users and the reputation in the industry.


Basic Info

Type: Bottle Blowing Machine

Screw: Single-Screw

Computerized: Computerized

Base Material: 38crmoala

Nitrided Layer Depth: 0.5-0.8mm

Surface Roughness: Ra 0.4

Bimetallic Layer Depth: 3 Mm

Hardness After Hardening&Tempering: Hb240-280

HS Code: 8477900000

Plastic Processed: PE

Automation: Automatic

Application: Extruder

Nitrided Hardness: 900-1000hv (HRC 55-65)

Nitrided Brittleness: Less Than Grade 1

Linearity of Screw: 0.015 Mm

Bimetallic Layer Hardness: HRC 58-70

Trademark: JS-ALLOY

Origin: China Mainland

Product Description

Separated type single screw and barrel for blowing bottle


JS-ALLOY is one of the most history and famous screw barrel brand in China. We have professional and experienced teams in every department of our company. We think professional, quality and service is the basic of business. If you want reliable and helpful screw barrel, we will be your best choice! Please kindly find our detailed information as following:


Extruder single screw barrel specification:

Diameter: Φ 10mm-Φ 350mm

L/D ratio: 10-50

According to different material and products, the screw barrel can be chosen from:

General type, Barrier type, Separated type, Vented type, Groove type, Pin type, etc.

According to different material and products to design different screw compression ratio and L/D ratio.


Technical information:

Base materials:

1)38CrMoAlA (JIS SACM645)

2)42CrMo (AISI 4140)

3)4Cr5MoSi V1 (JIS SKD-61)

4)DC53 (JIS G4404)

5)Cr12MoV (SKD11)

6)9Cr18MoV

Bimetallic alloy materials:

1)Ni-based alloy/Deloro alloy

2)Fe-based alloy

3)Co-based alloy

4)NiCo-based alloy

5)Tungsten carbide/Wolfram carbide

Processing technics:

Heat treatment

High-frequency quenching

Nitriding treatment

Bimetallic alloy welding

Bimetallic alloy centrifugal casting

Hard-chrome electroplating

Technical parameters:

Nitriding layer depth: 0.5-0.8mm

Nitrided Hardness: 900-1000HV (HRC 55-65)

Nitrided brittleness: Less than grade 1

Surface roughness: Ra 0.4

Linearity of screw: 0.015mm

Bimetallic layer depth: 3 mm

Bimetallic layer hardness: HRC 55-70

Hard-chrome plating hardness after nitriding: ≥ 950HV

Chrome-plating layer depth: 0.03-0.1mm


Terms and Conditions:

Means of transport: Ocean, Air, Express

Production time: About 20-30 days after we receive the advanced payment


Production Process:

Receiving orders - Designing & Drawing confirmation - Blanking Thermal refining - Heat treatment - Rough Turning - Polishing - Drilling for barrel - Semi Finishing Machining - Bimetallic welding - Centrifugal casting for barrel - Polishing - Nitriding treatment(120 hours) or High frequency quenching - Hard-chrome plating - O. D. Grinding - Honing for barrel - Alignment - Polishing - Inspecting - Packing & Shipping



Find excellent quality separated screw made in China from one of the largest manufacturers and suppliers - Jinsheng Bimetallic. Leveraging on advanced equipment and superior techniques, we can offer you separated screw with high resistance, high quality and competitive price. With many products in stock, we warmly welcome you to buy or wholesale our products.
We adhere to the market-oriented, technology-centric, service-oriented policy, and the concept of achieving customers and creating value models to meet customer needs with various Plastic Crossed Round Head Screw. Sincerely stay up for serving you from the in the vicinity of future. We will always forge ahead on the road of pioneering and enterprising with advanced technology and management, sincere service and pragmatic work style.
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