Product Description

The Internal FBE & External 3LPE Anti-Corrosion Coating Production Line developed by HUASHIDA is specially designed for applying advanced anti-corrosion coatings to steel pipes of various diameters. This integrated system provides reliable internal and external protection, significantly improving the durability and service life of pipeline infrastructure.

This production line is widely used in various pipeline engineering projects, including:

• District heating pipeline systems
• Natural gas transmission pipelines
• Municipal water supply pipelines
• Oil and other fluid transportation pipelines

The internal FBE (Fusion Bonded Epoxy) coating provides excellent adhesion, chemical resistance, and corrosion protection for the inner surface of the steel pipe. At the same time, the external 3LPE (Three-Layer Polyethylene) coating system forms a strong multi-layer barrier that protects the pipe against moisture, soil pressure, mechanical impact, and corrosive environments.

After coating, the steel pipe surface becomes smooth, uniform, and highly resistant to wear and corrosion. This not only improves the efficiency of fluid transportation by reducing friction, but also greatly extends the pipeline’s service life.

Main Components of the Production Line

The coating line mainly consists of the following units:

• Steel pipe conveyor system
• Shot blasting / sand blasting system
• Dust collector system
• Pipe induction heating system
• Epoxy powder spraying system
• PE & adhesive coating system
• Water cooling system
• Pipe end cutting system
• Hydraulic and pneumatic system
• Testing system
• Electronic control system

Production Process

External 3LPE & Internal FBE Coating Line Process

Pipe loading → Spiral conveyor → Internal rust removal → External rust removal → Medium-frequency heating → Internal epoxy powder coating → External epoxy powder coating → Adhesive & polyethylene outer coating → Water cooling → Pipe conveying → Pipe end beveling / grinding → Pipe unloading

This complete process ensures that both the inner and outer surfaces of the steel pipe are treated and coated efficiently, accurately, and consistently.

Product Parameters

A. Surface Cleaning Equipment

B. Coating Equipment

C. Platform Equipment

D. Groove / Pipe End Equipment

Application

The 3-layer polyethylene anti-corrosion coating technology is one of the most advanced protective solutions for buried steel pipelines. It is widely used in:

• Oil and gas transmission pipelines
• Urban gas supply pipelines
• Water supply pipelines
• Other fluid transportation pipelines

The 3LPE anti-corrosion coating significantly improves the pipeline’s:

• Mechanical strength
• Electrical insulation performance
• Waterproof capability
• Wear resistance
• Aging resistance

It provides long-term protection and ensures reliable performance in harsh operating environments.

Features

1. Integrated Automation

The entire production line is controlled by a centralized PLC and microcomputer system, ensuring synchronized operation, stable production, and high efficiency.

2. Superior Surface Preparation

Advanced internal and external shot blasting technology effectively removes rust, oxide scale, and contaminants, ensuring excellent coating adhesion.

3. Durable Coating Application

The electrostatic powder spraying system delivers a uniform, dense, and impact-resistant anti-corrosion layer.

4. Strong External Protection

The 3LPE polyethylene extrusion coating forms a highly durable barrier against soil corrosion, moisture, and mechanical stress.

5. Efficient Internal Coating

The internal FBE powder coating system provides complete and energy-efficient coverage for long-term internal corrosion protection.

6. Long Service Life

The combined internal and external anti-corrosion system effectively extends the pipeline’s operational lifespan and reduces maintenance costs.

Company Profile

Qingdao Huashida Machinery Co., Ltd., founded in 2003, is a professional developer, manufacturer, and solution provider of plastic extrusion equipment and anti-corrosion pipeline machinery.

With years of experience in international markets, 70% of our customers come from overseas, including Europe, America, the Middle East, and Southeast Asia.

We are committed to providing high-quality equipment, customized solutions, and reliable after-sales service to customers worldwide.

Welcome to visit our factory and discuss cooperation with us!

1. company profile

Qingdao Huashida Machinery Co., Ltd. is located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have tens of years experience in plastic pipe, sheet, and board extrusion lines, and pipe joints and welding tools such as heat shrinkable sleeve, Electro fusion sleeve etc.

2. main products

Our main products include as following,HDPE PU pre-insulation Jacket Pipe extrusion line,3PE steel pipe anticorrosion&coating machinery,Rubber&plastic foam flexible insulation tube/sheet production line,HDPE water supplying pipe extrusion line,PE PP sheet board extrusion line,Heat shrinkable sleeve production line,Hollow wall spiral pipe production line,Plastic welding rod extrusion line,Radiation cross-linked PE heat shrinkable sleeve,Electro fusion tape,Portable extrusion welder.

Our machines make products what are widely used as jacket pipe of PU foam insulation pipe in municipal heating pipe system; Municipal water supplying and drainage pipeline; Oil and gas pipeline; Pipe joints of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;
Besides manufacturing machines, we also make Heat shrinkable sleeves and electro fusion sleeves and plastic welders, which are widely used as pipe joints and sealings of plastic drainage water pipes, PU foam insulation pipelines, 2PE/3PE oil and gas pipelines;

4. Our certificates and Patents

5. Global market
Our purpose is to supply highest cost-effective products and the most suitable solutions to our clients, as well as intimate help and service, on this basis we reach a win-win situation.
For over 14years We have exported to many foreign countries, such as Russia, Iran, Turkey, U. A. E, Sudan, Ukraine, Uzbekistan, Azerbaijan, South Asia, Poland etc.

6. Core Team

The guarantee period is 12 months from the date of installing, but no more than 14 months from the date of delivery. After this period we are obliged to provide with lifelong service at the expense of Buyer.During the warranty period we are responsible to provide trouble shootings and help the customer to solve the problems, provide spare parts which are broken, except breakings caused by the Buyer.We will provide the technical service train the workers from the buyers for free.We can also send technicians to the buyer's companies abroad for help installation and testing the lines. But the buyer shall pay for the round trip tickets, accommodation, transportation, medicine treatment and insurance of the technicians in foreign countries and some salary accordingly.