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Deqing Leixin Coating Equipment Co., Ltd., established in 2011, is a professional manufacturer specializing in powder coating solutions. Our Fully Automatic Metal Powder Coating Line With Pretreatment & Curing Oven is engineered for high-efficiency coating of various metal workpieces. This integrated system streamlines the entire finishing process—from pretreatment to curing—delivering consistent, high-quality results while reducing labor costs and production time. Whether you process automotive parts, furniture, or general metal components, this line offers reliable performance and flexible customization.
Key Features & Technical Specifications
- Fully Automatic Operation – PLC-controlled with touch-screen HMI ensures minimal manual intervention and repeatable coating quality.
- Integrated Pretreatment System – Multi-stage spray or immersion pretreatment (degreasing, rinsing, phosphating, passivation) prepares metal surfaces for optimal adhesion and corrosion resistance.
- High-Efficiency Curing Oven – Gas-fired or electric heating options, with uniform temperature distribution (typically 180-220°C) and adjustable curing time.
- Modular Design – Allows easy expansion or reconfiguration to fit different production volumes and workpiece sizes.
- Energy-Saving – Insulated oven panels, heat recovery systems, and optimized airflow reduce energy consumption.
- Versatile Conveyor – Overhead chain conveyor or floor-type belt conveyor, suitable for heavy or irregular workpieces.
- Robust Construction – Heavy-duty steel frame, stainless steel pretreatment tanks, and long-life oven components ensure durability.
| Parameter | Specification |
| Line Speed | Customizable, typically 3-15 m/min |
| Workpiece Max Size | Up to 1200mm (W) x 2000mm (H) (customizable) |
| Pretreatment Stages | 5–9 stages (spray or dip) |
| Curing Temperature | 180–220°C (±5°C) |
| Heating Source | Natural Gas / LPG / Electric / Diesel (optional) |
| Coating Efficiency | Up to 95% (with recovery system) |
| Power Consumption | Depending on configuration (approx. 50-200 kW) |
| Control System | PLC + Touch Screen (Siemens or Mitsubishi optional) |
Detailed Product Description
The powder coating line comprises several key sections that work in sequence: loading zone → pretreatment tunnel → drying oven (optional) → powder coating booth → curing oven → cooling zone → unloading zone. Each section is designed to handle high throughput while maintaining excellent finish quality.
Pretreatment Section: Critical for removing oil, rust, and dirt. Our standard 5-stage spray pretreatment includes: alkali degreasing, water rinsing, surface conditioning, zinc/iron phosphating, and final rinsing. For stricter requirements, additional stages (e.g., passivation, deionized water rinse) are available. The tanks are made of stainless steel 304, and the spray system ensures complete coverage even for complex geometries.
Drying Oven (optional): Before coating, workpieces may be dried in a forced-air oven to remove moisture, ensuring the powder adheres properly. This oven operates at 100-150°C with adjustable speed.
Powder Coating Booth: Equipped with automatic reciprocating guns (manual touch-up also possible). The booth is made of anti-static material with a built-in cyclone recovery system, achieving near 95% powder utilization. Color change can be done in less than 15 minutes with our quick-change design.
Curing Oven: The curing oven uses a gas-fired heating system (or electric as chosen) with forced air circulation. The temperature profile is precisely controlled to ensure the powder melts and cross-links properly, resulting in a tough, durable finish. Adjustable conveyor speed and temperature settings allow optimization for different powder types (epoxy, polyester, hybrid, etc.).
Cooling & Unloading: After curing, workpieces pass through an ambient cooling zone and then are unloaded manually or automatically. The entire line is designed for continuous 24/7 operation.
Advantages for Your Business
- Increased Productivity: Fully automatic operation reduces labor requirements by up to 70% compared to manual lines.
- Consistent Quality: PLC control eliminates human error, delivering uniform coating thickness and adhesion.
- Lower Operating Costs: Energy-efficient oven design and high powder recovery minimize waste and utility bills.
- Flexibility: Modular construction allows quick adjustments for different parts and production volumes.
- Environmental Compliance: Closed-loop pretreatment system and exhaust treatment meet stringent environmental regulations.
Trusted by Global Customers
Deqing Leixin Coating Equipment Co., Ltd. has been serving the finishing industry since 2011. With a factory of 1,000-3,000 sqm and a team of 51-100 skilled professionals, we have delivered powder coating lines to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and Asia. Our annual export value of US$1M–$1.5M reflects the trust global buyers place in our equipment. We hold ISO9001:2015 certification, ensuring rigorous quality management from design to after-sales service.
All lines are shipped from Ningbo or Shanghai ports with professional packing. We offer installation guidance, commissioning support, and spare parts supply. Contact us today to discuss your specific requirements and get a customized solution.
Frequently Asked Questions
1. What types of metal workpieces can be processed on this line?
This line is suitable for steel, aluminum, cast iron, and other metal parts such as automotive panels, furniture frames, appliance housings, pipes, and profiles. Maximum workpiece size is customizable based on your needs.
2. How long does it take to install and commission the line?
Installation typically takes 3-5 days on-site, followed by 2-3 days of commissioning and training. Our engineers can supervise the process or provide remote guidance.
3. What pretreatments are included? Can I choose only certain stages?
Our standard pretreatment includes 5 stages. You can select fewer or more stages (e.g., 3-stage for simple parts, 9-stage for high corrosion resistance). We'll design based on your product requirements.
4. Is the powder coating booth explosion-proof?
Yes, the booth is designed with explosion-proof lighting and ventilation according to international safety standards. Optional spark detection and suppression systems are available.
5. What is the average powder consumption per square meter?
Typical consumption ranges from 60 to 120 grams per square meter depending on coating thickness and powder type. Our recovery system can reuse up to 95% of overspray powder.
6. Do you offer training for operators?
Yes, we provide on-site training for your staff covering operation, maintenance, and troubleshooting. Manuals and videos are also included.
7. Can the line be integrated with existing upstream or downstream equipment?
Absolutely. Our modular design allows easy integration with loading robots, storage systems, or packaging machines. We will customize the interface as needed.
8. What warranty do you provide?
Standard warranty is 12 months from installation. Extended warranty and spare parts packages are available upon request.
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