Blown Film Extruder Screw Barrel

HUACHEN Screw has been an outstanding blown film extruder screw barrel manufacturer in Zhoushan Jintang since 1993. With many years of experience designing and processing plastic machinery replacement parts, HUACHEN Screw can provide its customers with a wide range of services, including drawing rebuilding, design, modification, and customization. Our company has also successfully exported and supplied screw barrels to customers worldwide.

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Blown Film Extruder Screw Barrel

1. We make optimised screw barrels for blown film extruders. Screw barrels are made of premium alloy steel 38CrMoAlA, tempered, precision machined, and nitrided for superior hardness and corrosion resistance. Every screw barrel is manufactured by a high precision CNC screw milling machine, which can guarantee a high degree of consistency in extrusion performance.

2. There are lots of screw barrel designs we offer for different plastic film formulations and processing methods.

3. For recycled materials, high performance and high speed film blowers, we offer practical anti-wear solutions. With our bimetallic alloy overlay welding and chrome plating, we improve the surface hardness and corrosion resistance of the screw. It has a longer service life but a reasonable price.

4. Good compatibility. Our screw barrel structure can be upgraded for old plastic film producers who can’t meet their production requirements. With an optimised screw structure, we can improve the feeding capacity and plasticising performance of the screw barrel without changing anything else. This produces products with excellent hardness, high brightness, and smoothness. You can install our screw barrels on most models. If you’re not sure of your screw barrel design, our engineers can customise it.

Application

1. LDPE, LLDPE, HDPE single screw barrel for blown film extrusion

2. PP single screw barrel for film making machine

3. PVC single screw for blown film extrusion

4. You can also get screw barrels for other plastic film processing, just contact us for technical support.

Parameters

1. Single screw diameter available: 45 mm to 180 mm

2. Single screw L/D ratio available: 25 to 30

3. Screw max. length: ≤10000 mm

4. Barrel max. out diameter: ≤350 mm

5. Based materials: Premium 38CrMoAlA

6. Plasma nitriding surface hardness: HV 1000-1100

7. Plasma nitriding depth: ≥ 0.7 mm

9. Nitriding fragility: less than Grade I.

11. Surface Roughness: Ra 0.4 μm

12. Screw Linearity: ≤ 0.015mm

13. Alloy depth: 4-6 mm

14. Alloy surface hardness: ≥ HRC 61

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The ultimate solution for abrasion and wear

Level 3: bimetallic barrel and bimetallic screw;

Level 2: nitrided barrel and bimetallic screw;

Level 1: nitrided barrel and nitrided screws;

Hard chrome coating screw is an optional process.

Barrel with centrifugal casting process is an optional process.

Production time

Complete set of blown film extruder screw barrel within 20-30 days depending on the complexity of the part.

You can get creative with our wide range of products at reasonable prices. We can produce screws and barrels that are suitable for high speeds and pressures using the blown film extruder and various additives. It’s the China Original Factory for blown film extruder screw barrels. If you have any questions, please feel free to contact us.