Plastic Insulating Crossed Round Head Screw

Plastic Insulating 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...
Our goal is to become the national top manufacturer of LDPE SCREW BARREL, Soft PVC screw barrel, exhausted type screw, and to become one of the top ranking producers in the international market. In the new century, our company continues to carry forward the enterprise spirit of 'endless pursuit and all-round improvement', abides by quality first and customer first. We face the market with professional technology, healthy products and warm service.


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.
With quite a few factories, we will provide a wide variety of Plastic Insulating Crossed Round Head Screw. Our company uses high-tech talents, advanced and reasonable design, and a sound and strict quality management system to ensure continuous and stable provision of satisfactory products and services to users. Welcome new and old customers to negotiate business! We are inspiring to innovate cross-age products, creating high-efficiency products with minimum effectiveness, and our company strives to create industry standards.
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