159-4200mm 3LPE Coating Pipe Production Line with Epoxy Powder Coating and Induction Heating
Steel Pipe Internal FBE & External 3LPE Anti-Corrosion Coating Line
Model: 159–4200mm
Processing Capacity: ≥250 m²/h
Materials: Epoxy powder, adhesive, polyethylene
The TPEP steel pipe coating line is designed for anti-corrosion coating of steel pipes in the factory. It is widely used in engineering projects, particularly in heating, gas, and oil sectors. The line can apply FBE, 2-layer FBE, 2-layer PE, 2-layer PP, and 3-layer PE coatings.
The 3-layer PE coating consists of:
- FBE Coating (inner layer): Provides strong corrosion resistance.
- Adhesive Middle Layer: Enhances bonding between inner and outer layers.
- Polyethylene Outer Layer: Offers mechanical protection and environmental durability.
Applications
- Oil & Gas Pipelines: Long-term protection for safe transport of oil and gas.
- Urban Gas & Water Supply: Ensures reliable, safe, and clean fluid transport.
- District Heating Systems: Provides insulation and corrosion resistance even at high temperatures.
- Underground & Industrial Anti-Corrosion Projects: Durable protection for buried or exposed steel pipes.
3-layer PE coating strengthens the pipeline's mechanical properties while providing excellent electrical resistance, waterproofing, wear resistance, and anti-aging performance.
Detailed Equipment & Features
The coating line includes:
- Steel pipe transmission system
- Internal and external shot blasting system
- Dust collection system
- Pipe heating system
- Electrostatic spraying system
- PE coating system
- Water cooling system
- End cutting system
- Hydraulic & pneumatic system
- Testing system
- Electronic control system
Technological Process
Upload pipes → Screw conveyor → Internal rust removal → External rust removal → Intermediate frequency heating → Internal epoxy powder coating → External epoxy powder coating → Adhesive & polyethylene outer layer coating → Cooling spray → Screw conveyor → Grinding pipe ends → Pipe unloading
Advantages
- Advanced technology for consistent and reliable coating quality.
- Stable operation and high degree of automation, reducing labor costs.
- Anti-corrosion quality meets international standards.
- Full production solution: design, installation, commissioning, and training.
- Over 389 sets of production experience worldwide.
- Team includes 9 professional senior engineers and a high-end plastic machinery expert workstation in China.
Main Equipment List
| No. | Equipment Name | Set |
|---|---|---|
| A. Derusting Equipment | ||
| 1 | Pipe Wheel Conveyor | 1 |
| 2 | Internal & External Shot Blasting Machine | 1 |
| 3 | Cyclone Dust Collector | 1 |
| 4 | Pulse Dust Collector | 1 |
| 5 | Centrifugal Exhaust Fan | 1 |
| 6 | Rust Removal Equipment PLC | 1 |
| B. Coating Equipment | ||
| 1 | Pipe Wheel Conveyor | 1 |
| 2 | Induction Heating Device | 1 |
| 3 | Powder Spraying Device | 1 |
| 4 | Automatic Loading Dryer | 2 |
| 5 | SJ-65/30 Extruder | 1 |
| 6 | SJ-120/30 Extruder | 1 |
| 7 | Hot Melt Adhesive Extruder Die | 1 |
| 8 | PE Sheet Extruder Head Mold | 1 |
| 9 | Hot Melt Adhesive / PE Sheet Coating Device | 1 |
| 10 | Environmental Protection Ventilation Equipment | 1 |
| 11 | Cooling Spray Equipment | 1 |
| C. Platform Equipment | ||
| 1 | Steel Pipe Uploading Platform | 1 |
| 2 | Downloading Platform | 1 |
| 3 | Pipe Storage Platform | 1 |
| 4 | Turnover Mechanism | 3 |
| D. Groove & Auxiliary Equipment | ||
| 1 | PE Beveling Machine | 2 |
| 2 | Hydraulic Lifting & Turning Machinery | 1 |
| 3 | Hydraulic Equipment | 1 |
| 4 | PLC Automatic Control System | 1 |
Company Profile
Qingdao Huashida Machinery Co., LTD. has over 20 years of production experience in plastic pipe machinery, municipal pipe machinery, pipe insulation & anti-corrosion machinery, and pipe jointing & anti-corrosion materials.
Main Products:
- HDPE jacket pipe production lines for pre-insulated pipes (110–2000mm)
- Rigid and flexible pre-insulated pipe (PERT) production lines
- Steel pipe FBE / 2LPE / 3LPE anti-corrosion coating lines
- Steel pipe derusting lines
- PE pressure pipe / water and gas supply pipe production lines
- PP/PE plastic board, sheet, and geomembrane production lines
- NBR PVC thermal insulation tube/plate production lines
- Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeves, electro-fusion weldable joint sleeves, portable welding guns (extruders), PE/PP welding rods
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.