3LPE Coating Pipe Production Line water gas oil pipeline anticorrosion

3LPE Coating Pipe Production Line is engineered for high-efficiency, precision coating of steel pipes ranging from Φ59 mm to Φ3000 mm in diameter. It applies a triple-layer protective coating—Fusion-Bonded Epoxy (FBE), Adhesive (AD), and Polyethylene (PE)—that delivers exceptional corrosion resistance, long-term durability, and robust mechanical performance. Ideal for critical pipeline projects in oil & gas, water transmission, and industrial infrastructure worldwide.

Advanced Coating Structure:

• FBE Primer Layer (>100 μm) – Ensures strong adhesion and corrosion inhibition

• AD Bonding Layer (170–250 μm) – Seamlessly integrates epoxy and polyethylene layers

• PE Outer Layer (2.5–3.7 mm) – Provides mechanical protection and environmental resistance

The three layers are thermally fused into a unified, high-integrity coating that permanently bonds to the steel surface, forming a continuous impermeable shield against harsh operating conditions.

Automated Production Workflow:

1. Pipe Loading & Alignment

2. Shot Blasting (Surface Preparation)

3. Medium-Frequency Induction Heating

4. FBE Powder Application

5. Adhesive & PE Extrusion Coating

6. Water Cooling & Curing

7. Pipe End Beveling & Finishing

8. Final Unloading & Inspection

Designed for high throughput and consistent quality, this system features precise temperature control, automated material handling, and an environmentally conscious operating process, making it a reliable choice for modern pipeline coating requirements.

Equipment List

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.