electrostatic spray gun

• Common Problems and Solutions for Electrostatic Spraying, Understand It Through One Article!

  

  Mar 27, 2025

  Although electrostatic spraying is an advanced coating process, some common problems may also be encountered during the actual operation process. Today, we will interpret these problems in detail for you and provide effective solutions.   Problem One: Uneven coating thickness. This may be caused by inconsistent distances between the spray gun and the workpiece or uneven spraying speeds. The solution is to precisely adjust the distance between the spray gun and the workpiece before operation and maintain a stable spraying speed. Meanwhile, regularly check the atomization effect of the spray gun to ensure that the paint can be sprayed evenly.   Problem Two: Pinholes or bubbles appear. This is often due to the presence of water or air in the paint and improper surface treatment of the workpiece. To solve this problem, it is necessary to fully stir and filter the paint before spraying to remove the water and impurities therein. Also, conduct a thorough cleaning and degreasing treatment on the surface of the workpiece to ensure that the surface is clean and dry.   Problem Three: Leakage occurs during electrostatic spraying. This may be caused by poor grounding of the equipment or damage to the insulation of the spray gun. At this time, it is necessary to promptly check the grounding system of the equipment to ensure good grounding. Meanwhile, regularly check the insulation parts of the spray gun, and if there is any damage, they should be replaced immediately.   Understanding and solving these common problems can make your electrostatic spraying process smoother and ensure better product quality. We hope that this article can provide some practical help for friends engaged in electrostatic spraying work.       

  Hot Tags : electrostatic spraying Uneven coating thickness electrostatic spray gun Solutions for Electrostatic Spraying

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• Small Powder Friction Electrostatic Spray Gun: Small Body, Great Power

  

  May 04, 2025

  In the field of spraying, the small powder friction electrostatic spray gun is becoming an ideal choice for many small and medium - sized enterprises and specific spraying scenarios due to its unique advantages. Today, let's explore the mysteries of this spray gun in depth. I. The Unique Working Principle of the Small Powder Friction Electrostatic Spray Gun The working principle of the small powder friction electrostatic spray gun is different from that of traditional electrostatic spray guns. Traditional electrostatic spray guns charge the powder through a high - voltage electric field, while the friction electrostatic spray gun makes the powder particles obtain electric charges through friction with special materials inside the gun. When the powder passes through the spray gun, it rubs against the insulating material on the inner wall of the gun. The electrons on the surface of the powder particles are transferred, so that the powder particles are positively charged. The grounded workpiece then becomes a "magnet" to attract these positively charged powders, causing the powders to be evenly adsorbed on the surface of the workpiece, forming a dense coating. This unique way of charging does not require a high - voltage electric field, greatly reducing the complexity and safety risks of the equipment.   II. The Remarkable Advantages of the Small Powder Friction Electrostatic Spray Gun 1.Compact and Flexible, Suitable for Diverse Scenarios Its "small" feature endows it with high flexibility. For some small workshops with limited space, or when it is necessary to spray small and complex - shaped parts, traditional large - sized spray guns are difficult to operate, while the small powder friction electrostatic spray gun can handle these tasks easily. For example, in the handicraft production and small metal parts processing industries, it can accurately spray every part without missing any details. 2.Excellent Powder Adhesion Performance Since the powder is charged through friction, its charging method is relatively gentle and uniform, making the adhesion between the powder and the workpiece surface stronger. Compared with other spraying methods, the coating sprayed by the small powder friction electrostatic spray gun is more firmly attached and less likely to fall off. In the spraying of outdoor metal signs, the coating of the signs sprayed by it can still maintain a good adhesion state under long - term exposure to wind and sunlight, effectively extending the service life of the signs. 3.Significant Cost - effectiveness On the one hand, the equipment itself is relatively inexpensive, and the initial investment cost is not high, which is more acceptable for small and medium - sized enterprises with limited funds. On the other hand, it has low energy consumption and high powder utilization. Due to the uniform charging of the powder, it can be more effectively adsorbed on the workpiece, reducing powder waste. In the long run, it can save a large amount of raw material costs for enterprises. According to statistics, compared with some traditional spray guns, the small powder friction electrostatic spray gun can increase the powder utilization rate by 20% - 30%. III. Key Points of Use and Maintenance of the Small Powder Friction Electrostatic Spray Gun 1.Correct Operation is Crucial Before use, ensure that the spray gun is correctly and firmly connected to the powder supply system, grounding device, etc. Reasonably adjust parameters such as the air pressure and powder flow rate of the spray gun according to the material, shape of the workpiece, and the required coating thickness. During the operation, maintain an appropriate distance and moving speed between the spray gun and the workpiece surface. Generally, the distance is controlled between 15 - 30 cm, and the moving speed should be uniform to obtain an ideal coating effect. 2.Regular Cleaning and Inspection After each use, clean the residual powder inside the spray gun in a timely manner to prevent powder caking from affecting the next use. Regularly inspect all components of the spray gun, such as whether the nozzle is blocked and whether the powder feeding pipeline is damaged. Replace severely worn components in a timely manner to ensure that the spray gun is always in the best working condition. At the same time, pay attention to keeping the spray gun dry to avoid rusting of internal components due to a humid environment. The small powder friction electrostatic spray gun, with its unique working principle and remarkable advantages, has brought new solutions to the spraying work of many industries. As long as it is correctly selected, used, and maintained, it will play a huge role in improving product quality and reducing costs. I hope this blog can help you better understand and use this "small but powerful" spraying tool.

  Hot Tags : powder coating gun small spray gun small air spray gun electrostatic spray gun electrostatic friction

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• Common problems in the process of spraying

  

  Jul 25, 2025

  Spray unevenness is a common quality problem, which may lead to inconsistent coating thickness and affect the appearance and durability of products. The common reasons are as follows: 1. Unstable spray pressure: During the spraying process, if the pressure of the spraying equipment is unstable, it will lead to uneven powder spray and affect the uniformity of the coating. Common causes include unstable compressed air system, poor connection between the spray gun and the electrostatic generator, etc.  resolvent ： .      Ensure that the pressure of the compressed air system is stable and check it regularly. .      Adjust the nozzle pressure to ensure that the pressure is within the recommended range. .      Check the connection of the equipment to ensure that the voltage between the spray gun and the power supply is stable.     2. The spray gun distance is not appropriate: If the distance between the nozzle and the surface of the substrate is too close or too far, the spraying will be uneven. If the distance is too close, the powder injection amount is too large, which is easy to form accumulation; if the distance is too far, the adhesion of the powder is insufficient, which is easy to produce thin coating or splash.  resolvent ： Adjust the position of the spray gun according to the recommended distance in the equipment manual. The distance between the spray gun and the substrate is usually recommended to be 15-30cm. Adjust the Angle of the spray gun to ensure that the powder can cover the surface evenly. 3. Improper control of powder spray: Too much or too little powder spraying will lead to uneven spraying, too much powder will lead to thick coating, too little powder will lead to uneven coating and poor adhesion.  resolvent ： .     Use the powder flow control function of the spraying equipment to ensure that the powder amount is appropriate. .     Check the nozzle of the spray gun regularly to ensure that there is no blockage and the powder flow rate is stable.  

  Hot Tags : coating equipment supplier coating equipment factory electrostatic spray gun mini powder coating machine powder coating gun manufacturer small powder coating equipment powder spraying equipment electrostatic spray gun supplier

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