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Automatic Paint Spraying Line for Ultra-long Fluoropolymer Liners

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Product Description

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                                                Automatic paint spraying line for fluoropolymer liners, Electrostatic painting line with ultra-long capability, Fluoropolymer liner automatic spray system
                              

Automatic Paint Spraying Line for Ultra-long Fluoropolymer Liners

This specialized automated coating system is designed for applying primer, topcoat, and anti-corrosion coatings to ultra-long fluoropolymer liners (steel-lined PTFE/PFA/FEP pipes). Utilizing DISK or reciprocating automatic spraying methods, it delivers high efficiency, superior film build, and exceptional coating uniformity for both protective and decorative applications.

Working Principle

Workpieces are loaded via heavy-duty conveyor chains or overhead cranes into the spray booth. A spraying robot or reciprocating mechanism, synchronized with precision rotation systems, performs controlled spraying according to preset parameters. Following application, workpieces proceed through multi-zone constant-temperature drying ovens for leveling, curing, and cooling.

Core Advantages

Ultra-long Workpiece Adaptability: Engineered for pipes from 3m to 5m, eliminating sagging, missed areas, and uneven film thickness common in manual spraying
High-Precision Control: PLC digital control ensures film thickness variation remains within specified tolerances across entire pipe lengths
Environmental Protection & Safety: Advanced paint mist recovery systems and explosion-proof design compliant with Class A standards
Strong Adhesion Assurance: Optimized parameters for fluoroplastic surfaces achieve cross-cut test ratings of 0-1 with proper pre-treatment
Application Fields: Anti-corrosion pipe manufacturing, chemical equipment, semiconductor transfer piping, and heavy-duty anti-corrosion engineering

Process Flow

Loading → Surface Pre-treatment → Blow-off → Automatic Primer Spraying → Online Leveling → Automatic Topcoat Spraying → Online Leveling → Multi-Stage Drying & Curing → Forced-Air Cooling → Quality Inspection → Unloading & Packaging

Main Structure and Components

Spray System

Fan/cone-shaped stainless steel nozzles, corrosion-resistant piping, high-precision pneumatic diaphragm pumps with pressure regulation (0.2-0.6 MPa)

Conveying System

Heavy-duty suspension chain (0.5-5 m/min) with anti-sway mechanism and optional rotation device for complete coverage

Tank/Booth Structure

PP/FRP tanks and water-curtain/dry-type spray booths with partitioned processing sections and double-layer insulated reservoirs

Filtration & Circulation System

Multi-stage filtration (≤25 μm precision), corrosion-resistant pumps, and explosion-proof exhaust fans for continuous operation

Heating & Temperature Control

Steam/electric heating with ±2°C accuracy, PT100 sensors and intelligent controllers maintaining optimal process temperatures

Intelligent Control System

PLC + HMI interface with recipe storage, real-time monitoring, fault alarms, and production reporting capabilities

Auxiliary Systems

Centrifugal exhaust with treatment options, emergency stops, anti-slip platforms, and automatic fire-extinguishing systems

Key Features

1 Cost-Effective: Optimized design delivers superior cost-performance ratio through efficient conveying and paint circulation systems

2 Advanced Equipment: Incorporates multi-axis automatic reciprocating sprayers and intelligent temperature systems for modern industrial automation

3 High Adaptability: Flexible spray gun stroke and chain speed adjustments support mixed-batch production with future upgrade capacity

4 Quality Assurance: ISO 9001 compliant with rigorous installation controls ensuring anti-corrosion paint films meet required standards

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