Unlock High Efficient And Perfect Powder Coating With JOBON S20 Gun

A good electrostatic powder spray gun helps you unlock efficient and perfect coating.

For engineers, workshop supervisors, or coating technicians who deal with metal surface treatment every day, a handy electrostatic powder coating spray gun is undoubtedly a powerful tool to ensure production efficiency and coating quality. It's not just a tool for spraying powder, but a precision device combining electrostatics, aerodynamics, and materials science.

Faced with manual, automatic, and different brands of powder spray guns on the market, how do you choose?

1. The primary consideration is process requirements.

Manual spray guns offer high flexibility and are suitable for small-batch, multi-variety, or complex workpiece touch-up spraying.

Automatic spray guns (often mounted on reciprocating machines or robots) are better suited for large-volume, standardized continuous production, achieving extremely high uniformity and consistency.

 

2. Understand the performance of core components.

This directly determines the coating effect and cost:
** Gun Controller:

This is the "heart" of the spray gun, responsible for quickly and automatically adjusting the output electrostatic voltage and current according to the workpiece, rather than outputting a fixed voltage and current.

This ensures that the appropriate amount of powder reaches and adheres to the metal workpiece surface without frequent adjustments to the spray gun parameters, guaranteeing that the powder carries a sufficient and balanced charge.

This is the foundation of a high "powder application rate." It also effectively covers the concave corners of complex workpieces, overcoming the "Faraday shielding effect" and solving the industry pain point of difficult powder application to edges and corners.

 

 

 

** Gun Body and Nozzle:

The lightweight gun body (commonly made of high-quality aerospace aluminum) significantly reduces operator fatigue during long-term work, and the reduction in heat dissipation lowers down the gun weight significantly.

Nozzles come in various designs, such as round nozzles (suitable for large flat surfaces) and flat nozzles (strong penetration). Flexible selection based on the workpiece shape is key.

** Practical Operation:

Powder Coating Spraying Parameter Adjustment:
1) Voltage and Current: 

Higher is not always better. Excessive voltage may cause orange peel on the coating surface, while insufficient voltage will result in insufficient powder application. Refer to our S20 gun manual for default values ​​or make minor adjustments from the default values.

2) Air pressure and powder output:

The pressure for the S20 coating gun should be stable at 0.55Mpa.

The atomizing air ensures a perfect powder cloud morphology, while the injection air determines the coating thickness.

However, pls keep in mind that if the powder quality is good, no need to turn on the atomizing air, and it can be set to 0.

3) Spraying distance:

Typically maintained between 100-300mm. The specific distance depends on the shape and complexity of the workpiece, ensuring sufficient powder reaches and adheres to it.

4) Spraying parameters: 

The S20 spray gun has flat, groove, reverse spray, and custom modes. The default settings are generally sufficient for most workpieces.

Safety, Maintenance, and Cost Control：

During operation, the equipment must be reliably grounded, the workpiece must be grounded, and the spray booth must be grounded.

Daily maintenance determines the equipment's lifespan.

After each day's work, be sure to clean the exterior of the spray gun and the powder supply channel with an air gun.

Regularly inspect and clean the nozzles and discharge needles to prevent powder buildup from affecting performance.

Replace the venturi tubes promptly.

The S20 gun controller displays the venturi tube's usage time for easy customer monitoring, eliminating the need for manual recording.

 

Electrostatic powder coating technology is continuously expanding its boundaries.

Beyond traditional applications in home appliances, doors and windows, building materials, and hardware, it is increasingly popular in fields with extremely high coating performance requirements, such as automotive parts, medical devices, and electronic product casings.

Its environmental advantages perfectly align with the global trend of green manufacturing.

 

Choosing the JOBON S20 electrostatic powder coating spray gun will undoubtedly help you "spray" your way to a more efficient, higher-quality, and more energy-saving manufacturing future.

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