3LPE Coating Pipe Production Line with Internal FBE and External 3LPE for Oil, Natural Gas, and Water Supply Pipelines Using High Voltage Electrostatic Spray Gun

HUASHIDA Steel pipe anticorrosion coating line is used for anti-corrosion coating steel pipe in the factory with various diameter, which is more widely used in varieties of engineering construction, especially in the heating, gas, water supply pipe and other fluid transmission pipeline.

Steel Pipe Internal FBE & External 3LPE Anti-Corrosion Coating Production Line:The FBE inner layer provides strong adhesion and excellent chemical resistance, while the 3LPE outer layer delivers superior barrier performance against moisture, soil stress, and corrosive environments. The resulting coating surface is smooth and low-friction, enhancing flow efficiency and extending pipeline service life.
 

3 layer PE anti-corrosion coating consists of first FBE coating, middle adhesive layer and outer polyethylene layer.

Coating Structure:

1.Fusion-Bonded Epoxy (FBE) Powder Layer
Chemically bonds to steel substrate for superior adhesion and cathodic disbondment resistance
2.Co-Polymer Adhesive Layer
Ensures permanent bonding between epoxy and polyethylene layers
3.High-Density Polyethylene (HDPE) Layer
Provides mechanical protection against impact, abrasion, and environmental stress

Steel Pipe Internal FBE and External 3LPE Anti-Corrosion Coating Production line

Our advanced coating line is engineered to deliver high-performance internal FBE and external 3LPE coatings for steel pipes, fully customizable to meet each customer's required pipe sizes and project specifications. With a highly integrated process design, the system ensures stable operation, consistent coating thickness, and reliable production output.

External 3LPE & Internal FBE Coating Line Process:

Upload pipe → Pipe screw conveyor → Internal rust removal → External rust removal → Medium frequency heating → Internal epoxy powder coating → External epoxy powder coating → Outer layer bonding polyethylene coating → Cooling spraying → Pipe screw conveyor → Pipe end face grinding → Unloading pipe.

External 3LPE & Internal FBE Coating line parameters:
 

Internal FBE External 3LPE coating line Features:
1. Microcomputer-controlled automatic adjustment of the coordination of various parts of the production line.
2. High-speed shot blasting equipment for internal and external wall rust removal.
3. High-performance electrostatic spraying equipment with good impact resistance.
4. High-quality PE sheet extrusion equipment with good anti-corrosion effect.
5. Energy-saving internal wall coating equipment.

Equipment list:
 

No.	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 machanism	3
D.Groove Equipment
1	PE Beveling Machine	2
2	Hydraulic Lifting and Turning Machinery	1
3	Hydraulic Equipment	1
4	PLC automatic control system	1

Detailed Photos

The anti-corrosion coating processing 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 and pneumatic system
-testing system
-electronic control system

Our Advantages

Advanced Technology & Stable Performance: Ensuring highly efficient and reliable operation.
High Automation: Significantly reduces labor costs and improves production efficiency.
Internationally Certified Quality: Superior anti-corrosion properties that meet global standards.
Turnkey Solutions: Comprehensive service from design and installation to commissioning and training.
Proven Expertise: Backed by 389 successful production lines worldwide and a team of 9 senior engineers.
Award-Winning Innovation: Recognized by a national-level expert workstation in China.

 

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!

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