| Markets: |
North America,South America,Southeast Asia,Africa,Mid East,Eastern Asia |
| Screw Diameter: |
25mm - 250mm |
| Type: |
Profile Extruder |
| Screw: |
Twin-Screw |
| Computerized: |
Computerized |
| Plastic Processed: |
WPC |
| Automation: |
Customize |
Product Description
JL SCREW have rich experience on manufacturing Parallel / Conical Twin Screw Barrel for PVC pipe, PVC sheet, PVC film, PVC profile, PVC granules, PVC (micro) foaming, soft PVC, WPC+PVC, raw material compound high percents calcium poeder, recycle material etc.
Every JL Parallel / Conical Screw & Barrel is made of high quality materials, with heat treatment, high-frequency quenching, nitriding treatment, precision grinding / bimetallic alloy welding, hard-chrome electroplating. These advanced technics are ensuring our products having many great characteristics, especially in dimensional accuracy, wear-resisting, lifetime, prevention of corrosion.
Our reliable and helpful Screw & Barrel is your best choice!
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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
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Technical Information:
( We can customize screw & barrel according to customers' requirements. The compression ratio of screws can be designed according to different products and ingredients. )
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Specification: |
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Screw Diameter: Φ25mm - Φ 250mm |
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L / D Ratio: 15 - 40 |
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Base Materials |
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1. 38CrMoAlA (JIS SACM645) |
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2. 42CrMo (AISI4140) |
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3. 4Cr5MoSi V1 (JIS SKD-61) |
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4. DC53 (JIS G4404) |
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5. Cr12MoV (SKD11) |
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6. 9Cr18MoV (Stainless Steel) |
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Bimetallic Alloy Materials: |
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1. Ni -based alloy |
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2. Fe-based alloy |
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3. Co-based alloy |
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4. NiCo-based alloy |
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5. Tungsten carbide |
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Processing Technics: |
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Heat treatment |
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High-frequency quenching |
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Nitriding treatment |
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Bimetallic alloy welding |
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Bimetallic alloy centrifugal casting |
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Hard-chrome electroplating |
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Technical Parameter: |
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Nitriding layer depth: 0.5 - 0.8mm |
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Nitriding hardness: 900 - 1000HV (55 - 65HRC) |
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Nitriding brittleness: ≤Grade 1 |
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Surface roughness: Ra0.4 |
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Linearity of screw: 0.015mm |
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Bimetallic layer depth: ≥3 mm |
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Bimetallic layer hardness: 55 - 70 HRC |
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Hard-chrome plating hardness after nitriding: ≥ 950HV |
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Chrome-plating layer depth: 0.03 - 0.10mm |
Zhoushan Jinli Screw Industry Co., Ltd was established in the year of 1998, we are a professional manufacturer of designing, researching and manufacturing all kinds of screws, barrels and other accessories for plastic and rubber machinery.
Our company is located in Zhoushan city, it covers an area of 12000sqm and has over 100 employees. We are well equipped with a variety of advanced machines, experienced R&D team, strict quality control system and perfect after-sale service. These conditions are ensuring us best quality and creating more and more long-term customers.
In order to keep high quality, we built quality control system strictly follow ISO9001: 2008 international Quality System and kept effective operating. As a result of our high quality products and outstanding customer services, we have gained a global sales network reaching Middle East, Southeast Asia, Eastern Europe, Africa, South America etc.
With the JinLi spirit of "based on sincerity, build a win-win situation", in the past twenty years, we developed together with customers. We believe our unremitting efforts will help us win greater markets and play a bigger role in this field in the future.
