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Model: SL-TSWP-WK
The paper belt spray painting machine uses kraft paper as the conveying medium. Inside a spacious, clean spray booth, spray guns perform automatic reciprocating motion to coat constant-speed advancing workpieces uniformly. Its vacuum adsorption keeps the kraft paper flat and wrinkle-free, preventing workpiece backside paint contamination. The disposable paper path also simplifies color changes by removing the need to wash a conventional coating belt between finishes.
Application Materials:
Application Coatings:
The paper belt spray painting machine separates the workpiece from the conveyor with a fresh kraft-paper surface throughout the spray zone. Vacuum suction keeps the paper flat beneath the panel, so wet overspray does not build up on a reusable belt and transfer back onto later workpieces. This arrangement is especially useful when you need a clean underside on glass, furniture panels, decorative boards, or other finished surfaces.
Paper enters from one end of the machine and is collected again after it passes through the spray area. The winding and unwinding devices move with the conveyor so clean paper continues to arrive beneath incoming products.
Inside the conveying section:
The conveyor surface stays physically separated from the coated panel during production, which is particularly useful where backside cleanliness remains visible in the finished product.
A U.S. Bonner light curtain reads workpiece position and dimensions before spraying. The control system uses this information to define the active spray area and switch the guns according to the product passing through the booth.
Two independently driven spray axes can travel in coordinated or opposing directions. Their motion creates a Z-shaped spray route across the advancing workpiece, while eight GRACO medium-pressure Air-Mix guns provide adjustable spray angles around the coating area.
Color changes become simpler because the kraft paper itself carries the overspray through the machine. You do not need to remove paint residue from a reusable PE coating belt before introducing the next finish.
The GRACO Merkur bellows pump is also configured for rinsing and color-change work. Together, the paper conveyor and spray supply system reduce the amount of cleaning that takes place around the workpiece transport surface when production switches between coatings.
Filtered positive-pressure air enters from the top of the booth while excess paint mist moves toward the rear collection area. This keeps airflow moving through the enclosed spray space as panels travel beneath the reciprocating guns.
For glass finishing, the machine can become part of a glass spray painting line where clean backside handling is required after washing and before downstream drying. You can also combine it with other spray painting equipment when different workpiece types require another conveying or spray arrangement.
Custom paper belt spray painting machines of different sizes are available for various products, and the parameters will vary accordingly. Please contact us.
Engineered for excellent coating quality, this spray painting machine is compatible with any high-gloss or super-matte finish. Its top-tier spraying system ensures uniform, fine paint mist adhesion on workpiece surfaces and edges; the variable-frequency, positive-pressure airflow system delivers steady airflow in the booth; and the paper conveyor system guarantees blemish-free, clean double-sided workpieces.
The paper belt spray painting machine enables quick, convenient color and paint switching for custom orders, unlocking greater production flexibility. With its kraft paper conveyor belt, operators no longer need to prepare the belt-cleaning trolley or perform repeated cleaning work, reduce solvent use, and streamline the color change process
The paper belt spray painting machine precisely detects workpiece dimensions and position, confining spraying to the target area to eliminate overspray and missed coating, thus saving high-value paint. It replaces multiple skilled workers with a daily output of 1300-3000 ㎡, slashing production costs and boosting efficiency significantly.
At the inlet and outlet of the spray booth, there are two separate paper belt winding and unwinding devices. When workpieces are detected, these devices automatically feed new, clean paper and recycle used paper at a synchronized speed.
The spray painting machine is equipped with a vacuum blower and a perforated suction belt. Its vacuum adsorption function ensures the workpiece adheres tightly and seamlessly to the paper belt, preventing any coating defects along the edges.
Eight GRACO medium-pressure air-mix spray guns ensure uniform atomization and soft spraying, boosting paint transfer efficiency and reducing overspray bounce-back. Each spray gun has adjustable angles, with 360° horizontal and 90° vertical range.
The durable GRACO Merkur bellows plunger pump has a 24:1 pressure ratio and a 9L flow rate. It can quickly switch and recover, is easy to rinse for color changes, produces minimal pulsing to ensure an even spray, and boasts a long service life.
The high-resolution, high-accuracy grating U.S. Bonner light curtain with solenoid valves automatically detects workpiece positions and dimensions, controls the spray range, and switches the spray guns, thereby saving paint and conveyor consumables.
Two spray axes are independently driven by two servo motors and centrally controlled by a PLC system, able to move in the same or opposite directions to execute a Z-shaped spray path, increasing efficiency and ensuring a more uniform coating.
Two opposing spray axes reciprocate for even painting of moving products. The HIWIN silent linear guide rail features an ISHAN automatic lubrication device that injects fresh lubricant and removes waste, ensuring optimal rail performance.
A large fan and filter supply ample fresh air from the spray booth top, creating a frequency-regulated, pressurised airflow that prevents paint mist dispersion and external dust entry. Excess paint mist is collected in the back box for recovery.
When your substrate, coating, or space is unusual, or when you have unique technical requirements, our custom services may be the best way to help you achieve your goals.
Customize spray painting machines to fit the dimensions of your products and spaces.
Customize spray painting machines to fit different coatings and budgets.
Customize spray painting machines to fit different coatings and budgets.
Customize spray painting machines for different products and applications.
Customize spray painting machines for different application requirements.
Customize spray painting machines to optimize electricity consumption across different countries.
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