24-Station Rotary Spin Coating Line for Pulp Molding with Customizable Output up to 1,200 pcs/hr and PLC Control

This customizable 24-station spin coating line is a high-precision, automated production system engineered for applying uniform functional coatings (water/oil barrier, bio-based, UV-curable) to 3D-shaped products such as pulp-molded tableware, food containers, and industrial packaging.

Available in rotary indexing, modular robotic, and integrated drying configurations. The system is fully customizable in number of stations, output speed, coating weight, fixture design, and drying profile.

Working principle: Products are loaded onto custom fixtures on the rotary indexing table. At each spin station, precision dosing pumps dispense coating material onto the product, followed by high-speed spinning (centrifugal force) to evenly spread the coating across complex interior geometries, including corners and sidewalls. The coated products then pass through multi-stage drying tunnels (IR pre-dry + hot air curing + cooling) to achieve a pinhole-free, uniform barrier film with minimal material waste and >90% transfer efficiency.

• Food packaging: Pulp-molded plates, bowls, trays, clamshell containers - waterproof/oil-proof PFAS-free barrier coatings
• Disposable tableware: Pulp-molded cups, soup containers, lunch boxes - heat-resistant internal coating
• Industrial packaging: Anti-static, anti-corrosion, moisture barrier coatings for electronics/automotive protective packaging
• R&D & pilot production: Small-scale models for testing new bio-polymer coatings before full-scale production
• Eco-friendly packaging: PLA, PHA, bio-based coatings for sustainable compostable certifications

This 24-station spin coating line is highly customizable to meet your specific production requirements:

• Number of stations: From single-station R&D units to 24+ station rotary systems - fully customizable
• Fixture / nest design: Custom-machined fixtures for your specific product geometry (bowl, plate, tray, etc.) - customizable
• Coating application method: Precision metering pump, spray nozzle, dip, or pour methods - customizable
• Dosing system: Pump type, capacity, flow rate - customizable for different coating viscosities
• Drying/curing profile: IR, convection, UV sections - zoned temperature and airflow control - customizable
• Layout configuration: Circular, linear, U-shaped - customizable to fit your factory space
• Automation level: Semi-automatic to fully automated with robotic loading/unloading - customizable
• Integration: Interface with upstream molding presses and downstream packaging units - customizable
• Voltage: 220V/380V/415V - customizable to local electrical standards

• Precision & uniformity: Individual servo-controlled dosing and spin units ensure consistent coating weight and thickness (>95% uniformity) across all products
• High material efficiency: Spin coating achieves >90% transfer efficiency - drastically reduces coating waste compared to spray methods (50-70%)
• 360° internal coverage: Centrifugal force spreads coating evenly across complex 3D shapes, including deep corners and sidewalls - eliminates pooling and pinholes
• High production output: 24-station continuous operation - up to 1,200 pcs/hour for mass production
• Gentle curing: UV-LED or NIR options prevent thermal degradation of sensitive pulp substrates; multi-stage drying prevents bubbling or warping
• Smart control: PLC + HMI with recipe management, real-time parameter monitoring, fault diagnostics, and IoT data connectivity
• Rapid changeover: Quick-release fixtures and stored PLC recipes enable fast product switching between different shapes/sizes
• Robust & hygienic construction: 304 stainless steel frame and food-grade material contact paths - easy to clean, suitable for food production environments

• Free process consultation and feasibility analysis - send your product samples for testing
• Custom layout design for your production floor
• On-site installation and commissioning (customizable support packages)
• Operator training program included (operational, maintenance, safety)
• Remote troubleshooting via video call, IoT monitoring, or online support
• 18-month warranty on mechanical components, 12-month on electrical parts
• Spare parts availability from regional warehouses
• Preventive maintenance service contracts available
• Lifetime technical support via phone, email, or chat

• Packing: Anti-rust film + reinforced wooden crate / wooden box (with foam padding for sensitive components - control panel, sensors)
• Standard model lead time: 30-45 days after order confirmation
• Custom configuration lead time: 60-120 days (longer for extensive customization)
• Shipping: FOB Shanghai / CIF by sea, air, or rail
• Customizable: Export crating, custom labeling, destination port documentation