Qingdao Huashida Machinery Co., Ltd.
| Payment Terms | T/T,Western Union,D/A |
| Supply Ability | 5-10 +sets+per mouth |
| Delivery Time | 60work days |
| Packaging Details | Container loading，sea transportation |
| Coating Layers | 3 Layers |
| Control System | PLC |
| Pipe Surface Preparation | Shot Blasting |
| Origin | China |
| Connection Type | Welding |
| Operating Mode | Automatic |
| Coating Structure | Fbe, 2lpe, 3lpe |
| Coating Type | Internal, External |
| Heating Method | Induction Heating |
| Brand Name | Huashida |
| Model Number | 001 |
| Certification | CE, ISO, RoHS, REACH |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,Western Union,D/A | Supply Ability | 5-10 +sets+per mouth |
| Delivery Time | 60work days | Packaging Details | Container loading，sea transportation |
| Coating Layers | 3 Layers | Control System | PLC |
| Pipe Surface Preparation | Shot Blasting | Origin | China |
| Connection Type | Welding | Operating Mode | Automatic |
| Coating Structure | Fbe, 2lpe, 3lpe | Coating Type | Internal, External |
| Heating Method | Induction Heating | Brand Name | Huashida |
| Model Number | 001 | Certification | CE, ISO, RoHS, REACH |
| Place of Origin | China | ||
| High Light | PLC Control 3LPE Coating Pipe Production Line ，50-4200 mm Anti-Corrosion Steel Pipe Production Line ，Sa 2.5 3LPE Anti-Corrosion Coating Machine | ||
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.
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.
Extended Service Life: Designed to last 30–50 years, even in harsh environments.
Superior Durability: High resistance to low-temperature impacts and mechanical damage.
Exceptional Adhesion: Combines the high strength of epoxy with the low water absorption of PE.
Efficiency: Minimizes energy loss and maintenance costs due to its excellent sealing performance.
| 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 |
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.
The manufacturing process is divided into four critical stages:
Essential for preparing the steel surface to ensure maximum adhesion.
Pipe wheel conveyors and Shot Blasting Machines.
Environmental controls (Cyclone & Pulse dust collectors).
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.
Loading, downloading, and storage platforms.
Cooling Spray equipment to set the coating.
PE Beveling Machines for pipe-end finishing.
Integrated PLC automatic control systems for the entire line.
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 are:
1. HDPE jacket pipe for pre-insulated pipe Production Line (110-2000mm)
2. Rigid pre-insulated pipe Production Line
3. Flexible pre-insulated pipe(PERT) production line
4. Steel pipe FBE/2LPE/3LPE anti-corrosion coating line
5. Steel pipe derusting line
6. PE pressure pipe/Water Gas supply pipe production line
6. PP/PE plastic board/sheet/geomembrane production line
7. NBR PVC Thermal insulation tube/plate production line
8.Pipeline anti-corrosion materials and instruments: heat shrink joint coating sleeve, electro-fusion weldable joint sleeve, portable welding gun(extruder), PE PP welding rod.
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
3000000-5000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
1. company profileQingdao 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 a... 1. company profileQingdao 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 a...
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