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High-Quality 3PE Coating Equipment Line for Steel Pipe Bending
Product Overview
The 3PE Coating Equipment Line for Steel Pipe Bending is an advanced industrial solution designed to apply high-performance three-layer polyethylene (3PE) anti-corrosion coating on bent steel pipes. Engineered for precision and durability, this system ensures consistent coating quality even on complex pipe geometries, making it ideal for pipelines used in oil, gas, water supply, and infrastructure projects.
This specialized 3PE coating line is developed to handle steel pipe bends and elbows, overcoming the challenges of non-linear surfaces. The system integrates surface preparation, epoxy powder spraying, adhesive application, and polyethylene wrapping into a seamless automated process. Equipped with intelligent control systems and precision coating technology, it guarantees uniform thickness, strong adhesion, and long-term corrosion resistance.
Key Features
Designed specifically for bent and curved steel pipes
Uniform 3-layer coating (FBE + adhesive + PE)
High adhesion strength and impact resistance
Automated control for consistent quality
Energy-efficient and stable operation
Suitable for oil & gas, water, and industrial pipelines
Applications
Oil & Gas Pipeline Systems
Water Transmission Projects
Chemical Industry Pipelines
Infrastructure & Construction
Advantages
Enhanced corrosion protection
Adaptability to complex pipe shapes
Reduced maintenance costs
Long service life performance
Technical Specifications
Item
Name
Specification
1
Diameter of steel pipe
400, 426, 630, 720, 820, 1000, 1200 mm
2
Curvature radius
4-6 times D
3
Elbow angle
15-90 degrees
4
Steel tube wall thickness
8 mm - 12 mm
5
Epoxy powder thickness
More than 170 μm
6
AD copolymer adhesive thickness
170-250 μm
7
PE layer thickness
2.5 - 3.7 mm
Basic Work Conditions
Process parameters of winding anticorrosion:
Production line size: 20 m × 15 m
Total water consumption: 30 cubic meters
Total power consumption: 450 kilowatts
Total gas consumption: 6 cubic meters / min
Temperature condition: The temperature inside the workshop is higher than 5 degrees
System Components
Elbow Conveyor Line
Elbow Conveyor Line Features:
Independent center of rotation drive
Gear ring gear drive with frequency control
Main parts adopt protective supporting wheel
Supporting wheel equipped with slide rail for easy installation
Fixed angle of self-locking structure of transmission line
Height lift adjustment capability
Medium Frequency Heating:
Angle handwheel adjustment
Front and rear electric adjustment
Height adjustment through conveyor line
Narrow thickness to avoid uneven heating in bending section
Power: 350kW
Voltage and current double close regulation
Powder Spraying for Elbow
Powder Spraying System:
Annular dusting chamber
Front and rear electric adjustment of powder spraying chamber
Spray gun swings left and right
CNC adjustment of powder quantity
12 powder guns
U-shaped bottom blowback recovery
Overall material: 304 stainless steel
Hard negative pressure of recovery air duct does not deform
Powder Injection Recovery:
Drawing air duct suitable for pipe diameter changes
Cyclone + filter cartridge dust removal standard discharge
U-shaped bottom structure + pulse back blowing for thorough powder recovery
304 stainless steel fluidization tank with vibrating screen powder filter
Equipped with 12 venturi powder pumps
Wrapping Machine
Wrapping Machine Features:
Automatic belt locking
One side with corrosion protection
Continuous operation of winding tape
Strip wound tightly
High degree of automation
Automatic calculation of strip by computer
Deviation of straight pipe from center does not affect wrapping work
PLC Control System
PLC Control System Capabilities:
Data collection and editing
Memory function
Automatic calculation of strip consumption
Automatic acquisition and correction of transmission speed
Advanced Technical Features
Variable Conveyor Line - Handles different pipe diameters, radii, and angles on one production line
Precise Arc Technology - Eliminates internal stress, ensures accurate bending without springback or deformation
Coaxial Winding Device - Enables continuous, precise winding for pipes with different diameters
Advanced Spray Coating - Uniform electrostatic spraying with strong adhesion, hardness, and corrosion resistance
Efficient FBE Heating - Fluidized boiling technology ensures stable melting, low energy use, and reliable performance
Manufacturer Profile
Qingdao Huashida Machinery Co., LTD is a manufacturer of series of plastic pipe machines, municipal pipe machines, pipe insulation & anticorrosion machines, and pipe jointing & anticorrosion materials, with more than 20 years of production experience.
We attach great importance to research and development, collaborating closely with Tsinghua University, Beijing University of Chemical Technology, South China University of Technology and scientific research institutions. By absorbing advanced technology from home and abroad, we now rank among the top 3 manufacturers in the industry in China.
We have been working with more than 400 overseas customers and exporting our products to Kazakhstan, Uzbekistan, Middle East, Russia, Nigeria and more countries.
Our Main Products Include:
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
International Presence
International Trading Show
Quality Certifications
Client Projects
Clients Case
Our Team
Shipping & Transportation
Thank you for your interest in Qingdao Huashida Machinery Co., Ltd. equipment.
For further details, please feel free to contact us at any time. Our team will respond promptly and provide a fully customized solution tailored to your specific requirements and project needs.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
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...