Qingdao Huashida Machinery Co., Ltd. specializes in next-generation 3PE / 3LPE / 2PE steel pipe coating systems designed to deliver maximum corrosion protection for pipelines. Our advanced production line integrates precise surface preparation, efficient extrusion coating, and intelligent control technology to ensure stable performance and long service life. Widely used in oil & gas, water supply, and district heating projects, Huashida's coating solutions provide reliable protection even in harsh environments, helping global clients build safer and more durable pipeline networks.
This advanced coating system is designed to apply high-performance anti-corrosion layers to steel pipes used across a wide range of infrastructure projects, including district heating networks, oil and gas transmission pipelines, and water supply systems. The equipment supports flexible coating configurations, allowing it to adapt to diverse project requirements, such as:

• Fusion Bonded Epoxy (FBE)

• 2-layer Polyethylene (2PE)

• 2-layer Polypropylene (2PP)

• 3-layer Polyethylene (3PE/3LPE)

3-Layer PE Coating System Composition:

1. Primer: Fusion Bonded Epoxy (FBE) base coat

2. Intermediate: Specialized adhesive layer

3. Outer protection: High-density polyethylene sheath
   

As the most advanced protective solution for underground piping systems, three-layer polyethylene coating provides:
✓ Enhanced mechanical strength
✓ Superior electrical insulation
✓ Excellent waterproof properties
✓ Outstanding wear resistance
✓ Long-term anti-aging performance

This technology has become the industry standard for corrosion protection in:
• Oil & gas transmission pipelines
• Urban gas distribution networks
• Municipal water supply systems
• Various fluid transportation infrastructure

Technological processes

Qingdao Huashida Machinery Co., Ltd is one of the top manufacturers of plastic extrusion machines in China, specialized in dealing with Steel pipe in terms of anticorrosion and insulation technology, R&D of the coating technique, design and manufacture of the equipment for coating, products and materials, researching and development of plastic extrusion equipments, especially of Vacuum Calibrating method PE insulation jacket pipe extrusion line, and PE hollow wall spiral pipe production line, PE PP sheet extrusion line, and pipe joints and welding tools such as heat shrinkable sleeve, Electro fusion sleeve etc.

Up to now, We have successfully entered the oversea markets of Russia, Iran, UAE, India, Belarus, Kazakhstan and son on. Our pipeline production line is nearly 50sets at home and abroad.
HUASHIDA Factory located in Qingdao High & New Technology Industrial Area- Qingdao Huashida industrial Park, covers an area of about 4000 square meters. We have obtained more than 10patents and many industry certifications at home and abroad. HUASHIDA company has high qualified and experienced teams for reaching& designing, manufacturing and site operation.
We have reliable products of different models because of our powerful making capacity. We can satisfy our customer's special need because of our outstanding R&D and design capacity. We can offer our user with timely and convenient techniqual support because of our perfect after-sales service.

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