A production line designed for continuous liquid paint application, with coordinated spraying, drying, curing and material handling for industrial metal products.

A liquid painting line provides a continuous and controlled process for liquid coating applications, helping improve coating consistency and production efficiency.

ZHYAO designs customized liquid painting lines according to the workpiece, paint system, production capacity, coating requirements and factory conditions.

1. Liquid Painting Line Advantages

A properly configured liquid painting line can improve both production efficiency and coating consistency.

Key advantages include:

Consistent Paint Application – Automated spraying helps maintain stable coating coverage across repeated workpieces.

Continuous Production – Connected process stages reduce manual transfer and support a more organized production flow.

Better Coating Control – Spraying, drying and curing conditions can be adjusted according to the selected paint system.

Reduced Manual Work – Automation reduces repetitive spraying and material handling operations.

Flexible Production Configuration – The line can be designed for different workpiece sizes, production volumes and coating requirements.

Process Integration – Pretreatment, spraying, drying, curing, cooling and conveying can operate as coordinated stages.

2. Applicable Industries

Liquid painting lines are widely used for metal products in automotive, home appliances, hardware, construction machinery, electrical equipment, building materials, furniture and general manufacturing.

Typical applications include automotive components, machine parts, equipment housings, metal frames, cabinets, panels and fabricated metal products.

3. Main Components

Pretreatment System

Prepares the workpiece surface before painting by removing contaminants and improving surface conditions. The appropriate treatment method is selected according to the workpiece material and coating requirements.

Liquid Painting Booth

Provides a controlled area for liquid paint application, with booth dimensions, ventilation and exhaust designed according to the workpiece and spraying process.

Automatic Spraying System

Applies liquid paint to the workpiece using automatic spray guns, reciprocators or robotic spraying equipment. The configuration depends on workpiece geometry, production speed and required coating coverage.

Drying & Curing System

Provides the required temperature and airflow conditions for drying or curing the applied paint. The system is selected according to the paint characteristics and coating process.

Conveyor System

Moves workpieces between each production stage. Conveyor type, load capacity, speed and routing are designed according to the product and production requirements.

Exhaust & Filtration System

Handles paint mist and process air generated during spraying. The exhaust and filtration configuration is selected according to the coating process and applicable requirements.

Electrical Control System

Coordinates the main equipment and production sequence through the line control system.

4. Liquid Painting Process

The process is arranged according to the selected paint system and workpiece requirements.

Loading → Pretreatment → Drying → Liquid Paint Spraying → Drying/Curing → Cooling → Inspection → Unloading

Additional process stages can be incorporated when required by the coating specification or production process.

5. Technical Parameters

The technical specifications are customized according to the project.

6. ZHYAO Customized Solution

To develop a suitable liquid painting line, please provide the following information:

Factory Dimensions (Length, Width, Height)

Production Output (1 day = 8 hours, 1 month = 30 days)

Material of the Workpieces

Workpiece Dimensions

Workpiece Weight

Color Change Demand (Frequency)

Based on this information, ZHYAO engineers evaluate the coating process, equipment configuration and line layout, then develop a customized solution according to your production requirements and factory conditions.

7. Why Choose ZHYAO

30+ Years of Industry Experience

ZHYAO has focused on coating equipment design and manufacturing since 1995, with experience in liquid painting and industrial coating systems.

Customized Process Design

The painting line is developed according to the selected paint system, workpiece characteristics and required production flow.

Integrated Equipment Manufacturing

ZHYAO can provide spraying, conveying, drying, curing, exhaust and control equipment as part of an integrated liquid painting line.

Engineering Support

Support covers process planning, equipment manufacturing, installation and commissioning according to the project scope.

                                                                                         （Real-life photos of the ZHYAO factory）

8. Project Support & Delivery

Production Lead Time

45–90 Days

The actual schedule depends on the line configuration, equipment quantity, customization requirements and project confirmation process.

Installation & Commissioning

ZHYAO provides installation and commissioning support according to the project scope and site conditions.

24-Month Warranty

The equipment is covered by a 24-month warranty according to the agreed project warranty terms.

Lifetime Technical Service

Technical support and service remain available after the warranty period.

FAQ

What products can be processed by a liquid painting line?

Liquid painting lines can be configured for automotive parts, machinery components, electrical enclosures, metal furniture, building materials, hardware and other fabricated metal products.

Can the liquid painting line use automatic spraying?

Yes. Automatic spray guns, reciprocators and robotic spraying systems can be configured according to the workpiece geometry, production capacity and coating requirements.

What types of liquid paint can be used?

The equipment configuration depends on the selected paint system. Different paints may require different spraying, ventilation, drying or curing conditions.

Can the line handle different workpiece sizes?

Yes. The conveyor, spray booth, spraying equipment and drying or curing system can be designed around the expected workpiece range.

【Get a Custom Solution】