High-Efficiency Automatic Spray Coating Line for Wine Trays & Cosmetic Packaging (External Surface)
Our High-Efficiency Automatic Spray Coating Line is specially designed for applying protective and decorative coatings to the external surfaces of industrial packaging items, including wooden/plastic wine trays, glass or plastic cosmetic bottles, compacts, jars, and caps. The line combines precision spraying with fast drying, delivering a smooth, even, and high-gloss finish that enhances product appearance and durability. With programmable spray parameters and customizable conveyor configurations, it ensures consistent quality and high throughput for medium-to-large scale production.
Production Line Composition
- Automatic Infeed Conveyor - Belt or roller conveyor with product alignment guides
- Pre-Treatment Station (Optional) - Plasma, flame, or corona treatment for better adhesion
- Spray Coating Booth - Enclosed stainless steel booth with exhaust and filtration system
- Multi-Nozzle Spraying System - Programmable reciprocating spray guns or robotic arms
- Conveyorized Drying/Curing Tunnel - IR lamps or hot air convection heating
- Cooling Zone - Forced ambient air cooling before handling
- Unloading/Stacking Conveyor
- Central Control Cabinet with HMI - PLC control, recipe storage, and real-time monitoring
Technical Parameters
| Category |
Parameter |
Specification / Description |
| System Capacity |
Max. product width/length |
Customizable (Standard: up to 600mm width, 1200mm length) |
| Conveyor speed |
1-15 m/min (stepless adjustable) |
| Production rate |
Customizable - typically 500-3000 pcs/hour depending on product size |
| Spray System |
Nozzle type |
HVLP / Air-assisted / High-pressure (customizable) |
| Number of spray guns |
Customizable (2-8 guns) |
| Spray gun movement |
Reciprocating or 4-axis robot (customizable) |
| Coating material |
Compatible with solvent-based, water-based, UV, and varnishes |
| Drying/Curing |
Heating method |
IR lamps + hot air circulation (gas/electric optional) |
| Drying temperature |
Ambient - 180°C (adjustable, zone control) |
| Tunnel length |
Customizable (Standard: 6m, 8m, 12m) |
| Booth & Safety |
Booth material |
304 stainless steel / powder-coated carbon steel |
| Air filtration |
Dry filters or water curtain (customizable) |
| Safety features |
Flame-proof motors, emergency stop, overheat protection |
| Utility |
Power supply |
380V/415V, 3-phase, 50/60Hz (customizable) |
| Compressed air |
6-8 bar, dry and oil-free |
| Exhaust requirement |
5000-15000 m³/h (customizable) |
Applications
- Wine trays (wooden, plastic, or foam) - decorative and protective coating
- Cosmetic packaging - bottles (glass/plastic), caps, jars, compacts, and palettes
- Other industrial packaging - luxury boxes, electronic accessories, perfume caps
- Coating types: Primer, base coat, topcoat, anti-scratch, anti-fingerprint, matte/gloss finishes
Customization Options
This spray coating line is designed to be highly customizable for your specific product shapes and production volume:
- Conveyor width and type - belt, chain-on-edge, or rotating fixture plates
- Spray gun arrangement - top, side, tilt, or orbital patterns for complex 3D surfaces
- Masking / fixture design - custom product holders to avoid coating on non-target areas
- Drying tunnel length and temperature zoning - to match your coating chemistry
- Control integration - Can be customized to communicate with upstream/downstream equipment via industrial protocols (Profibus, Ethernet/IP)
Key Features
- High coating uniformity - Programmable spray overlap and speed control eliminate streaks and unevenness
- Fast changeover - Quick-release gun mounts and recipe-based settings reduce downtime
- High transfer efficiency - HVLP nozzles reduce overspray and material waste
- Robust construction - Stainless steel interior, easy to clean and maintain
- User-friendly HMI - Real-time monitoring of speed, temperature, and spray parameters with fault diagnostics
Support and Services
- Pre-sale consultation - Free layout and capacity simulation
- Installation & commissioning - On-site or remote guidance by senior engineers
- Operator training - Comprehensive training on spray parameter setting, cleaning, and safety
- After-sales - 12-month warranty, lifetime remote support, spare parts stock
Packing and Shipping
- Packing - Each major module (booth, tunnel, conveyor, control cabinet) is securely packed in export-grade wooden crates with moisture-proof film and shock-absorbing foam
- Shipping - Shipped via sea freight (FOB, CIF, EXW terms). Air freight available for urgent orders. All customs documents included. Lead time: 8-12 weeks for customized configurations
Frequently Asked Questions
Q1: Can this line coat irregularly shaped items like wine trays with deep cavities?
A: Yes. By using customizable spray gun angles (e.g., tilt, rotary, or robot arm) and product fixtures, we can achieve full external coverage even for complex 3D shapes.
Q2: How do you prevent overspray on non-target areas (e.g., inside of a container)?
A: We offer customizable masking fixtures and shielding jigs to protect internal surfaces. The spray system can also be programmed to apply coating only where needed.
Q3: What is the typical curing time for water-based coatings on glass bottles?
A: Drying time depends on coating thickness and temperature. With our 6m IR + hot air tunnel at 80-120°C, typical curing takes 3-5 minutes. We can customize tunnel length accordingly.
Q4: Can the line be upgraded from manual to automatic loading later?
A: Absolutely. The conveyor interface is designed for future integration with robotic loaders or automatic tray feeders as a customization option.
Q5: Do you provide sample coating trials?
A: Yes. We offer a sample testing service at our facility. Send us your products and coating material; we will run trials and provide a process parameter report and coated samples for your approval.
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