The Steel Pipe Internal & External 2LPE / 3LPE / FBE Liquid & Powder Epoxy Coating Line is designed for high-performance anti-corrosion treatment of steel pipes. It is widely applied in various infrastructure projects, particularly in oil and gas transmission as well as water pipeline systems.
This coating system supports multiple anti-corrosion technologies, including Fusion Bonded Epoxy (FBE) powder coating, two-layer extruded polyethylene (2LPE), two-layer polypropylene (2LPP), and three-layer extruded polyethylene (3LPE) coating solutions.
The production line is engineered to manufacture coated steel pipes in full compliance with major international standards, including DIN 30670:1991, CAN Z245.21-2010, ISO 21809-1:2009, SY/T 0413-2002, GB/T 23257-2009, GOST 9.602-2016, and GOST R 51164-98, ensuring reliable quality and long-term corrosion protection performance.
The coating line mainly consists of the following units:
-steel pipe conveyor system
-shot/sand blasting system
-dust collector system
-pipe induction heating system
-epoxy powder spraying system
-PE&Adhesive coating system
-water cooling system
-pipe end cutting system
-hydraulic and pneumatic system
-testing system
-electronic control system
Technological process of 3LPE coating:
Pipe uploading→Shot blasting→Medium frequency induction heating→Epoxy powder spraying→Adhesive and polyethylene coating→Water cooling→Pipe end cutting back→Bevelling→Pipe unloading![]()
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The line can be customized to fit individual layout and application.![]()
Main Equipment List and specification
| No. | Name | Specification |
| A. Surface Cleaning Equipment | ||
| 1 | Steel pipe conveyor | Adjustable speed and angle, pipe uploading and unloading controlled by PLC |
| 2 | Shot blasting machine | |
| 3 | Cyclone dust collector | High efficient downwind cyclone dust removal |
| 4 | Impulse cartridge dust collector | |
| 5 | Centrifugal fan | |
| 6 | PLC control system | Automatic control of the line |
| B. Coating Equipment | ||
| 1 | Spiral pipe conveyor | Adjustable speed and angle |
| 2 | Induction heating machine | |
| 3 | Powder spraying device | Spraying thickness 80-800μm |
| 4 | Automatic feeder&dryer | |
| 5 | SJ-65/30 Extruder | |
| 6 | SJ-180/30 Extruder | |
| 7 | Adhesive extruder die mould | High quality die steel |
| 8 | PE sheet extruder die mold | High quality die stee |
| 9 | Adhesive/PE sheet coating device | Pressing roller with silicon coating and internal cooling |
| 10 | Environmental Protection Ventilation equipment | |
| 11 | Cooling Spray equipment | |
| C.Platform Equipment | ||
| 1 | Steel pipe platform | High quality |
| D.Groove Equipment | ||
| 1 | PE Beveling Machine | Steel brush disk, |
| 2 | Hydraulic Lifting and Turning Machinery | For lifting and turning the pipe |
| 3 | Hydraulic Equipment | |
Equipment show![]()
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Question & Answer:
Q1. What is Size of Pipe Dia. your equipment can produce ?
A: We can produce four main Model:
Diameter of steel Pipe:
48-219 mm
219-1220 mm
800-1600 mm
1000-2400 mm
1020-3200 mm
1620-4200 mm
Q2. What is Descaling grade?
A:SA2.5?
Q3. What is your anticorrosion coating standard?
A: It can meet SY/T0413-2002 ,GB/T23257-2009, German DIN 30670 , DIN 30678 and coating specification requirements from American Corrosion Association, and DNV . The product pipe fully complies with SY/T0315-2005 ,CNPC38-2002 "Technical specifications for double-layer fusion-bonded epoxy powder coating on buried steel pipe and Canada, American Corrosion Association standards.
Q4. What is Delivery Time
A: 2-3monthes after deposit.
Q5. Production output:
A: It is different output capability as different pipe diameter, the Max. is 3 to 8 km/day, and annual processing capacity is 2 million square meters (Φ508 mm).
Q6. Coating thickness:
A: 80~800um
Q7. Which country did you sell your 3PE equipment?
A. We have produced nearly 50 sets 3PE processing line at home and abroad. Such as Russia, Iran, UAE, Iran, India, Belarus, Kazakhstan and so on.
Q8. After-sales service:
A: Warranty period:
Before delivery all the equipment must be trial operated to confirm the quantity perfectly.
The warranty period is 12 months from the date of pick-up for mechanical part , and 6 months for the electrical part.
Service:
The seller provides free technical services and provides training and guidance to buyer operators.
Qingdao Huashida Machinery Co., Ltd is a professional plastic extrusion production line manufacture since 2003. The factory covers 34000 square meters.
Our products such as HDPE pressure pipe for gas or water transmission, structural wall pipe extrusion line, corrugated pipe extrusion line. The products have been exported to Middle East, Russia, Africa. Turkey, Korea.
Our factory locates in Chengyang Industrial area, Qingdao, Shandong Province. We have been approved and got certificate ISO90001:2008 by SGS. All the customers are welcome to visit the factory.
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