Vacuum coating line

automaticfor the automotive industrydry

Overview
The Shaanxi Beiren industrial coating machine is an automated roll-to-roll coater designed for high-throughput production of liquid, powder and vacuum-deposited coatings. It delivers micron-level thickness control and is configured for continuous operation in controlled-environment manufacturing lines.

Features

• Cleanroom-compatible design: hundred-level purification system for contamination control
• Winding: dual-station zero-speed material receiving for wrinkle-free cores
• Unwinding: dual-station flying knife and air-expanding shaft for automatic high-speed roll changes
• Automated roll handling and tension control for repeatable web tracking

Coating methods

• Micro-concave roller coating
• Comma roller coating
• Slit extrusion coating (slot-die)
• Reverse kiss coating
• Wire bar coating
• Multi-roller coating

Key applications

• Automotive manufacturing — primer, basecoat, clearcoat on body panels; electrostatic rotating atomizers for Class A finishes
• Electronics & PCB assembly — conformal coatings with precise masking to protect connectors and components
• Battery and new energy — slot-die coating for electrode slurries with ±1 µm thickness control

Superior performance features

• Precision control: PLC with HMI touchscreen for recipe-driven process control
• Material compatibility: wetted parts in stainless steel 316L and PTFE seals for aggressive solvents and abrasive slurries
• Electrostatic systems: improved wrap-around effect and transfer efficiency to reduce material waste

Quality assurance & testing
Each unit undergoes Factory Acceptance Testing (FAT) including Dry Film Thickness (DFT) consistency checks, cross-cut adhesion tests and functional verification of control and safety systems.

Technical specifications

• Viscosity range — 1 cP to 50,000 cP
• Atomization pressure — 2 to 7 bar
• Conveyor/web speed — up to 10 m/min
• Transfer efficiency — up to 90% with electrostatic systems
• Materials in contact — stainless steel 316L, PTFE seals
• Control system — PLC with HMI touchscreen
• Safety & compliance — CE machinery directives; ISO 12944 for corrosion protection

FAQ highlights

• Orange peel texture: typically corrected by adjusting coating viscosity, atomization pressure or solvent flash-off time
• Maintenance: daily flushing for solvent systems; inspect seals and gaskets monthly, replace around every 2,000 operating hours
• Mixed water/solvent use: not recommended unless configured with separate circuits and validated flushing protocols
• Uniformity on 3D geometries: achieved with multi-axis robotics and offline programming to maintain gun-to-target distance and perpendicularity
• Transfer efficiency: method-dependent (air spray 30–40%, electrostatic 65–90%)

Technical features

• Purification: hundred-level purification system
• Winding/unwinding: dual-station designs with automatic roll change
• Coating options: roller, slot-die, kiss, wire bar, multi-roller
• Control & monitoring: recipe management, real-time DFT monitoring and alarms