Reciprocating Spray Coating Machine

The reciprocating spray coating machine keeps panels moving while two independently driven gun carriages travel across the conveyor from opposite positions. Eight adjustable GRACO Air-Mix guns atomize the coating above the workpiece, covering the main surface and edges as the panel passes through the spray booth. As a continuous coating spray machine, it maintains stable paint application while supporting different finishing processes across various panel materials.

The spray coating machine supports UV, PU, water-based, metallic, primer, topcoat, and other compatible coating processes. Continuous conveying allows coating operations to run without repeated stopping and restarting between workpieces.

Cross The Panel With Two Independent Spray Axes

Each spray axis has its own servo drive, allowing the two gun carriages to operate in coordinated or reverse movements. Instead of keeping the guns at one fixed location, the system repeatedly crosses the moving panel and distributes spray passes across the required coating area.

The spraying sequence combines:

• Two independently controlled reciprocating gun carriages
• Eight adjustable GRACO medium-pressure Air-Mix guns
• Same-direction or reverse-direction spray movement
• HIWIN linear travel system with automatic lubrication
• PLC control for spray motion and carriage speed

Different movement patterns can be selected according to workpiece dimensions and coating requirements. This flexibility allows the coating spray machine to match different production processes while maintaining continuous panel movement. As a result, the coating spray machine can handle changing spray routes without interrupting the overall production flow.

Clean The PE Belt Before The Next Panel Arrives

During spraying, excess coating may fall onto the reusable PE conveyor belt. At the booth exit, the belt passes through an automatic cleaning trolley that removes residual paint and collects the waste before additional washing stages.

The cleaned belt returns under the next panel with a prepared transport surface. This keeps the spray coating machine operating continuously while reducing coating buildup during repeated production cycles.

Start Spraying According To The Actual Workpiece Position

A Bonner light curtain detects the panel before it enters the active spraying area. The signal allows the control system to adjust gun activation and spray coverage according to the incoming workpiece position instead of spraying across empty conveyor space.

The machine can process doors, furniture panels, MDF, glass, marble, fiber-cement products, and other compatible sheet materials. When UV paint is included in the finishing process, the spraying section can also be integrated into a UV spray painting line.

Maintain Filtered Airflow Inside The Spray Booth

Fresh air enters through the upper filtration section and creates controlled airflow inside the enclosed spray booth. The airflow carries airborne paint mist toward the rear filtration and exhaust system while panels continue moving beneath the reciprocating guns.

For production requiring different spray structures, such as narrow profiles, compact cells, five-axis movement, or robotic spraying, the process can be combined with other spray painting equipment according to the product requirements.

Standard Parameters: