Composition of Production Line
Our Internal Spray Coating Production Line is a fully integrated, modular system designed for seamless workflow across two distinct industries. The standard production line composition includes:
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Automatic Feeding System: Vacuum suction or conveyor feeding for furniture panels; robotic pick-and-place for molded pulp products.
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Dust Removal & Ionization Unit: Eliminates surface particles and static charge to ensure optimal coating adhesion.
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Core Spray Coating Station:
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Precision Coating Delivery: Pneumatic diaphragm pumps with pressure stabilization.
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Drying/Curing Tunnel: Modular IR or convection drying with zoned temperature control (ambient to 120°C).
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Automatic Unloading & Stacking: Organized collection of finished products.
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Centralized PLC Control Panel: Touch-screen HMI with Mitsubishi or Delta components for recipe management and speed synchronization.
Note: The line configuration—including the number of stations, spray gun quantity, and conveyor layout—is fully customizable to fit your specific factory space and production volume.
Product Description
This Internal Spray Coating Production Line is a high-precision, automated solution specifically engineered for applying uniform functional coatings to the internal and external surfaces of furniture panels and molded pulp products.
For furniture panel applications, the system utilizes reciprocating spray technology with multiple guns to ensure even coverage on flat panels, cabinet doors, and decorative boards. It handles various substrates including solid wood, MDF, particleboard, and composite materials.
For molded pulp packaging (such as eco-friendly food containers, trays, and tableware), the machine employs advanced rotary/spin-coating technology. Each product is securely held on a custom-engineered fixture while precision nozzles dispense coating. The centrifugal force created by spinning ensures the liquid coating spreads evenly across all complex interior geometries, including deep corners and sidewalls, creating a seamless barrier.
The process is ideal for applying waterproof, oil-proof, high-temperature resistant (exceeding 100°C), and surface hardening coatings that meet stringent food safety standards. By automating the application, the line guarantees consistent coating weight (typically 5-50 microns), eliminates manual errors, and significantly reduces material waste with coating utilization reaching nearly 100%.
The system is designed for 24/7 continuous operation and is fully customizable to handle various product shapes, sizes, coating materials (water-based, UV, PU), and production speeds.
Technical Parameters
Application
Furniture & Wood Products:
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Panel furniture (office, kitchen, bathroom)
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Engineered flooring
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Decorative wall panels and doors
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Window frames and moldings
Molded Pulp & Packaging:
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Food containers (bowls, plates, trays, lunch boxes)
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Disposable tableware (cups, soup containers)
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Industrial protective packaging
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Agricultural trays
Additional Materials:
Customization
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Custom Fixture Design: We design holding fixtures tailored to the exact internal geometry of your specific product (bowl, tray, cabinet door) for perfect positioning during coating.
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Spray Gun Configuration: Customizable number and arrangement of guns (2-8) based on product complexity.
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Station Quantity: Customizable from single-station R&D units to high-speed 24-station rotary systems.
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Coating Method: Customizable selection of reciprocating spray, rotary spin coating, or combination.
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Coating Type Compatibility: Systems configured for water-based, UV-curable, PU varnishes, and eco-friendly coatings.
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Coating Thickness Control: Precise adjustment from 5-50 microns with PLC automation.
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Drying Profile: Customizable with modular IR, convection, or UV sections with zoned temperature control.
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Automation Level: From semi-automatic to fully automated with robotic loading/unloading.
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Material Construction: Choice of cold-rolled steel with electrostatic paint or SUS 304 stainless steel.
Feature
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Dual-Market Versatility: One system configured for both furniture panels and molded pulp packaging.
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360° Uniform Coverage: Spin technology ensures seamless coating on complex 3D shapes with deep recesses.
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High-Speed Processing: Reciprocating spray achieves speeds up to 1500 m/second with 5-face coating.
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Precision & Repeatability: PLC-controlled systems ensure consistent coating weight, reducing reject rates.
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Material Waste Reduction: Automated application minimizes overspray; coating utilization up to 100%.
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Rapid Changeover: Quick-release fixtures and stored PLC recipes for fast product switching.
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Eco-Friendly Operation: Compatible with water-based and low-VOC coatings.
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Comprehensive Safety: Over-temperature protection, motor overload, emergency stops, and protective光栅.
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Stainless Steel Construction: SUS 304 for corrosion resistance and food-grade compliance.
Support and Services
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Pre-Sales Engineering Consultation: We analyze your specific samples and coating requirements to propose the optimal customized system design.
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Sample Testing: Test your products in our demonstration center with your preferred coatings.
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Installation & Commissioning: On-site setup, calibration, and integration with your existing line.
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Comprehensive Training: Hands-on training for operators and maintenance staff.
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Warranty: 12-month warranty on the whole machine (1 year mechanical, 6 months electrical components).
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Remote Support: 24/7 online technical support via phone, email, or video call.
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Lifetime Support: Lifelong consultation and spare parts availability.
Packing and Shipping
FAQ
Q: What is the difference between spray coating and spin coating for molded pulp?
A: Spray coating uses compressed air to atomize coating; spin coating uses centrifugal force for even distribution on complex shapes. Our lines can be customized with either technology based on your product requirements.
Q: Can this line handle different product shapes on the same production line?
A: Yes. The key is customizable fixtures. Changeover between products involves swapping fixtures and loading a different PLC recipe, completed in minutes.
Q: What types of coatings can be applied?
A: The system is compatible with water-based acrylics, PU varnishes, UV-curable coatings, PFAS-free oil-barrier coatings, and bio-polymer films. Fluid path components can be customized for specific viscosities.
Q: How is coating thickness controlled?
A: Thickness is controlled by programmable parameters: spray pressure, rotational speed, conveyor speed, and material viscosity. All parameters stored in PLC for repeatability (5-50 microns range).
Q: Is the coating food-safe for contact applications?
A: Yes. The system applies food-grade coatings meeting international safety standards, with FDA-compliant materials available.
Q: What is the warranty period?
A: Standard warranty is 12 months for the whole machine (1 year mechanical, 6 months electrical components).
Q: Can the line be integrated with my existing conveyor system?
A: Yes. The machine's conveyor height, speed, and interface can be customized to match your existing line.
Q: What is the typical lead time for a customized line?
A: Manufacturing typically takes 25-40 working days after finalizing the design, followed by shipping.
