Huashida Production Line for External 3LPE & Internal FBE Coating of Steel Pipes
Product Description
This steel pipe anti-corrosion coating line is engineered to apply protective coatings to steel pipes of diverse diameters. It serves pipeline projects in heating, gas and oil sectors, and supports multiple coating processes: FBE, dual-layer FBE, 2PE, 2PP and 3LPE (three-layer polyethylene).
3LPE Coating Structure The 3LPE coating system comprises three layers:
- Epoxy powder primer layer: delivers strong adhesion and corrosion resistance
- Adhesive copolymer interlayer: bonds the primer to the outer sheath
- Polyethylene outer sheath: provides mechanical protection and insulation
This layered structure delivers outstanding corrosion resistance, ageing resistance and mechanical strength, greatly extending pipeline service life under harsh working conditions.
Performance Features
- Stable running with consistent coating quality
- Capable of continuous anti-corrosion treatment for pipes of various specifications
- High adaptability to a wide range of pipe diameters and coating materials
Application
Three‑layer polyethylene (3LPE) coating represents an advanced outer‑protection solution for buried steel pipelines. It is extensively deployed for corrosion mitigation of oil & gas trunk lines, municipal gas distribution networks, water supply piping and other fluid‑conveying pipelines.
The 3LPE coating improves the mechanical strength of steel substrates, and delivers excellent electrical resistance, water impermeability, abrasion resistance and long‑term anti‑ageing properties.
Detailed Photos
The anti-corrosion coating processing line includes:
- steel pipe transmission system
- surface treatment system
- pipe dust removal system
- pipe heating system
- electrostatic spraying system
- coating system
- water cooling system
- end cutting system
- hydraulic and pneumatic system
- testing system
- electronic control system
- much more extensively across a diverse range of engineering construction projects.
Technological processes
Our Advantages
Core Advantages
- Advanced Technology & Stable Performance: Enables high-efficiency and reliable operation.
- High Automation: Cuts labor costs substantially and boosts production efficiency.
- Internationally Certified Quality: Delivers excellent anti-corrosion performance complying with global standards.
- Turnkey Solutions: Full-service package covering design, installation, commissioning and operator training.
- Global Track Record: 389 successfully commissioned lines worldwide, supported by 9 senior engineers.
- Technological Innovation: R&D backed by a national-level expert workstation in China.
Product parameters
Available technical parameters are as follows:
| Pipe diameter |
426-1829mm (Production line designed based on customer's required diameter range) |
| Pipe length |
8-18m |
| Processing capacity |
≥250m2/h, maximum design speed of our production line can reach 800 m2/h. |
| Cleaning level |
≥Sa2.5 |
| Materials for production |
Epoxy powder, Adhesive, Polyethylene |
| Coating Thickness |
-FBE 80-120μm
-AD 170-250μm
-PE 3mm-3.7mm
This is the standard range, can be changed based on different requirement |
Main Equiment List
| No. |
Name |
Set |
| A. External Derusting Equipment |
| 1 |
Pipe support rack |
depend |
| 2 |
Pipe wheel conveyor |
1 |
| 3 |
Shot Blasting Machine |
1 |
| 4 |
Dust Collector (cartridge/ Filter bag/Cyclone) |
1 |
| 5 |
Centrifugal exhaust fan |
1 |
| 6 |
Rust removal equipment PLC |
1 |
| B. Internal Shot Blasting Equipment |
| 1 |
Internal Shot Blasting Trolley |
1 |
| 2 |
Travelling Rail |
1 |
| 3 |
Sand Filling Rack |
1 |
| 4 |
Internal Blasting Lance |
2 |
| 5 |
Pipe End Sealing Chamber |
2 |
| 6 |
Pipe Rotator |
2 |
| 7 |
Dust collector |
1 |
| 8 |
Equipment Electrical Control System |
1 |
| C. Internal FBE |
| 1 |
Induction heating device |
1 |
| 2 |
Internal Powder Spraying Suspension Rod |
1 |
| 3 |
SS Powder Coating Booth |
1 |
| 4 |
Internal Epoxy Spraying Booth |
1 |
| 5 |
Fluidizing Box |
1 |
| 6 |
Dust Collector |
1 |
| 7 |
Equipment Electrical Control System |
1 |
| D. Coating equipment |
| 1 |
Pipe support rack |
depend |
| 2 |
Pipe wheel conveyor |
1 |
| 3 |
Induction heating device |
1 |
| 4 |
Powder spraying device |
1 |
| 5 |
Automatic loading dryer |
2 |
| 6 |
SJ-75/30 Extruder |
1 |
| 7 |
SJ-150/33 Extruder |
1 |
| 8 |
Hot melt adhesive extruder die |
1 |
| 9 |
PE sheet extruder head mold |
1 |
| 10 |
Hot melt adhesive/PE sheet coating device |
1 |
| 11 |
Environmental Protection Ventilation equipment |
1 |
| 12 |
Cooling Spray equipment |
1 |
| E.Platform Equipment |
| 1 |
Steel pipe uploading platform |
Depend on layout |
| 2 |
Downloading platform |
Depend on layout |
| 3 |
Pipe storage platform |
Depend on layout |
| 4 |
Turnover machanism |
Depend on layout |
| F.Groove Equipment |
| 1 |
PE Beveling Machine |
2 |
| 2 |
Hydraulic Lifting and Turning Machinery |
Depend on layout |
| 3 |
Hydraulic Equipment |
Depend on layout |
| 4 |
PLC automatic control system |
1 |
Note: Equipment configuration and quantity are customized according to customer requirements, with no fixed standard
Product Parameters
- Pipe diameter: 50-4200mm
- Processing capacity: ≥250m2/h
- Cleaning level: ≥Sa2.5
- Materials for production: epoxy powder, adhesive, polyethylene
Customer cases
Company Profile
Qingdao Huashida Machinery Co., LTD., founded in 2003, is a global developer, manufacturer and solution provider of plastic extrusion equipment. 70% of its customers come from overseas countries such as Europe, America, the Middle East and Southeast Asia.
Welcome to our factory to discuss cooperation!
Our team
Delivery
Exhibition
Certifications
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(Dia. 159-4200mm)
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