2020mm Diameter Pipe 3lpe Coating Production Line

• Customization: Available
• After-sales Service: Sales Service
• Warranty: 2 Years
• Pipe Material: Carbon Steel
• Condition: New
• Customized: Customized
• Application: Industry
• Type: Pipe Production Line
• Coating: 3PE
• Blasting: Shot or Sand
• Transport Package: Seaworthy Packing
• Trademark: Taiyuan Jintong Pipe Mill
• Origin: China
• HS Code: 847720
• Production Capacity: 100000 Tons Per Year

Product Description

3LPE pipe coating production line

3LPE coating steel pipe's material includes seamless steel pipe, spiral steel pipe and straight seam steel pipe. 3PE anticorrosive coating has been widely used in petroleum pipeline industry for its good corrosion resistance, water permeability resistance and mechanical properties. 3PE anticorrosive steel pipe an anticorrosive layer for buried pipeline life is very important, the same material of the pipeline, some buried in the underground for decades not corrosion, some years leak, is because they use different external anticorrosive layer.

Specification

3LPE pipe coating machine

3LPE coating machines are specialized equipment used to apply three-layer polyethylene (3LPE) corrosion protection to pipelines. This coating system consists of:

Fusion-bonded epoxy (FBE) base layer for adhesion and cathodic protection.
Copolymer adhesive middle layer bonding FBE to the topcoat.
Polyethylene (PE) top layer for mechanical and environmental protection.
Below is a detailed analysis of their technology, components, innovations, and market trends:

Preheating System:

Uses induction heating (e.g., 50–300°C) to prepare pipe surfaces for FBE adhesion.
Extrusion System:

Dual extruders: One for adhesive copolymer (170–250 μm), another for PE topcoat (~2 mm).
Rotary Application Module:

For bend pipes, a rotating mold applies molten PE while moving along the pipe's curvature. Critical for uniform coating on complex geometries.
Sealing & Pressure Control:

High-pressure seals prevent leakage during rotation. Advanced machines use dual-seal systems (wear-resistant + gas seals).
Cooling & Curing:

Water-cooling zones solidify the coating rapidly after application.

Shot blasting machine

Water cooling machine

Internal shot blasting machine

Technical Specifications

Pipe external coating

3PE anticorrosion is generally composed of 3 layers:

In practice, the 3 materials will be mixed into one, after processing to make it firmly combined with steel pipe to form an excellent anti-corrosion layer.

The coating of 3PE anticorrosive steel pipe integrates the high impermeability and high mechanical properties of epoxy resin and polyethylene materials. So far, it is recognized globally as the best pipeline anticorrosive coating with the best performance and the best use effect, so as to be applied in many projects.

First layer: FBE, >100μm

Second layer: AD, 170-250μm

Third layer: PE, 1.8-3.7mm

Pipe internal coating

The internal pipe is divided into 2 kinds of anticorrosion: one is hot melt epoxy powder anticorrosion (High temperature fusion), other one is liquid epoxy coating, commonly used liquid epoxy IPN8710 (Cold spraying at room temperature). These 2 kinds of internal anticorrosion form process and performance are different, specifically shown in:

Drag reduction pipe line (Liquid expoxy coating): >50μm

Anticorrosive pipeline (High temperature fused epoxy powder coating), Common level: >250μm

Anticorrosive pipeline (High temperature fused epoxy powder coating), Strengthen level: >350μm

Technological process:

Pipe feeding → Pre heating → External shot blasting → Rust removal quality inspection → Intermediate frequency heating → Epoxy powder spraying → AD extrusion and coating → PE extrusion and coating → Water cooling → Coating detection → Appearance detection → Pipe end grinding → Internal shot blasting or sand blasting → Rust removal and cleaning → Epoxy power or Liquid spraying 

Drawings & Dimensions

Detailed CAD drawings and dimensional diagrams are available for download here or upon inquiry. Our engineering team can provide tailored designs to meet specific project requirements.

After Sales Service

Standard Warranty: 12 months after machine commissioning successfully.
Extended Warranty: Optional coverage up to 24 months.
Global Support: 24/7 technical assistance and spare parts supply.
Training: On-site or remote operation/maintenance training.

Company Profile

Taiyuan Jintong Heavy Machinery Equipment Co., Ltd.

Taiyuan Jintong Heavy Machinery Equipment Co., Ltd. is a leading Chinese manufacturer of Spiral pipe machine, Beveler, Hydrostatic tester and plate processing machine with over 20 years of expertise. Certified with ISO 9001 and CE, we export to 15+ countries, offering reliable machinery backed by R&D innovation and strict quality control.

Why Choose Us?

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OEM/ODM capabilities
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FAQ

Q: What's the lead time for orders?
A: Standard models ship in 15–30 days; customized units require 60–90 days.
 
Q: Do you provide Installation and Commissioning service overseas?
A: Yes, we shall dispatch engineers to do installation and commissioning service at Customer's plant.
 
Q: Can I request a customized bucket size?
A: Absolutely! We offer tailored attachments.
 
Q: What documents do you provide for export?
A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).
 
Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.