Automatic 3LPE Coating Pipe Production Line with PLC Control System for 50-4200mm Anti-Corrosion Steel Pipes
Price:
150000-1000000
MOQ:
1 set
Delivery Time:
60work days
Brand:
Huashida
Product Description
3LPE Anti-Corrosion Steel Pipe Production Line Manufacturer
Product Overview
The 3LPE (Three-Layer Polyethylene) system is a multi-layered coating designed to provide industry-leading corrosion resistance and mechanical durability for buried steel pipelines.
The 3-Layer Structure
- First Layer (Inner): Fusion-Bonded Epoxy (FBE) - Provides a strong chemical bond to the steel and serves as the primary defense against corrosion.
- Second Layer (Middle): Copolymer Adhesive - Acts as the "glue" that chemically bonds the epoxy layer to the outer polyethylene.
- Third Layer (Outer): High-Density Polyethylene (HDPE) - Provides rugged mechanical protection against impact, moisture, and environmental stress.
Key Advantages
Extended Service Life
Designed to last 30-50 years, even in harsh environments
Designed to last 30-50 years, even in harsh environments
Superior Durability
High resistance to low-temperature impacts and mechanical damage
High resistance to low-temperature impacts and mechanical damage
Exceptional Adhesion
Combines the high strength of epoxy with low water absorption of PE
Combines the high strength of epoxy with low water absorption of PE
Efficiency
Minimizes energy loss and maintenance costs due to excellent sealing performance
Minimizes energy loss and maintenance costs due to excellent sealing performance
Technical Specifications
| Parameter | Range/Requirement |
|---|---|
| Pipe Diameter Range | 50 - 4200 mm |
| Production Capacity | ≥ 250 m²/h |
| Surface Cleaning Level | ≥ Sa 2.5 (High-level grit blasting) |
| Primary Materials | Epoxy powder, Copolymer adhesive, Polyethylene |
Application Fields
The 3LPE coating line is essential for infrastructure projects, including:
- Energy: Long-distance oil and gas transportation and urban gas networks
- Utilities: Municipal water supply systems
- Industrial: Specialized fluid pipelines for chemical and manufacturing sectors
Production Line: Main Equipment List
The manufacturing process is divided into four critical stages:
A. Derusting Equipment
Essential for preparing the steel surface to ensure maximum adhesion.
- Pipe wheel conveyors and Shot Blasting Machines
- Environmental controls (Cyclone & Pulse dust collectors)
B. Coating Equipment
The core of the application process.
- Induction heating devices for pipe preparation
- Powder spraying for the FBE layer
- SJ-Series Extruders and molds for the adhesive and PE sheet application
C. Handling & Cooling
- Loading, downloading, and storage platforms
- Cooling Spray equipment to set the coating
D. Finishing & Control
- PE Beveling Machines for pipe-end finishing
- Integrated PLC automatic control systems for the entire line
About Qingdao Huashida Machinery Co., LTD
With 23 years of experience, Qingdao Huashida Machinery is a global leader in plastic pipe and anti-corrosion technology. We have served over 400 overseas customers across regions like Central Asia, the Middle East, and Africa.
Our Main Products
HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
Rigid pre-insulated pipe Production Line
Flexible pre-insulated pipe (PERT) production line
Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
Steel pipe derusting line
PE pressure pipe/Water Gas supply pipe production line
PP/PE plastic board/sheet/geomembrane production line
NBR PVC Thermal insulation tube/plate production line
Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun(extruder), PE PP welding rod
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Huashida Machinery Co., Ltd.
Location
69 Jinsheng Second Road Chengyang District, Qingdao, Shandong, China
Contact Person
yuki