Greetings, powder coating enthusiasts! We understand the importance of routine maintenance and proper care for your powder coating guns and application systems. As experienced professionals, we’re here to help you achieve optimal results. In this article, we’ll cover basic maintenance steps, list replacement parts for common spray systems, and offer valuable information on where to find the right parts for your specific system.
Powder Gun Maintenance: Grounding
One of the biggest issues with existing powder coating systems is the lack of routine powder spray gun maintenance. Poor grounding is a common cause of finishing system headaches. If you notice excessive powder falling to the floor or being drawn into the exhaust filters without adhering to your parts, it may indicate grounding issues. To avoid these problems and maintain high transfer efficiency, proper preventative maintenance is crucial.
There are several potential causes of grounding problems, including coated hooks, coated racks/hanging bars, poor grounding wire contact, gun issues, or operator error. Coated hooks and racks lose their ground after several uses and require cleaning or replacement to maintain proper grounding. Checking the grounding wire is also important, as it can get damaged or disconnected over time. Using a well-grounded system with thick grounding wire and quality clamps ensures better overall performance.
In some areas, pouring water into the hole where the grounding rod is buried can improve your ground. Slowly pour water around the grounding rod until it overflows from the top of the hole.
Powder Gun Maintenance: System Cleaning
Keeping your powder gun system clean is essential for optimal performance. Regular cleaning and flushing are necessary to maintain the integrity of your gun and prevent powder buildup.
End of Day: If you’re not changing colors, flush the powder through the hose to clean out any residual powder at the end of each day. Wipe down or blow off the gun/unit daily to prevent powder buildup and potential damage to the electronics. Color Change: During color changes, flush out the old powder and lightly clean all components. Consider breaking down the gun and using a foam earplug to scrape powder out of the line or changing hoses. Pay attention to wear items that may require replacement. End of Week: Perform a more thorough color change clean, focusing on areas where powder tends to accumulate. Use cotton swabs and isopropyl alcohol to clean hard-to-reach spots. Check all wear items and replace as needed. Wipe down the gun and display with isopropyl alcohol for a thorough finish.
Wear Parts and Extra Hoses
To ensure smooth operation and avoid unexpected failures, it’s essential to have replacement parts readily available for your powder coating system. Wear parts and hoses are particularly susceptible to damage and may require replacement.
Venturi Sleeve: The venturi sleeve condenses the powder for travel up the hose and is a common wear part. It can become worn or grooved due to the abrasive nature of powder. Regularly check the sleeve, especially during color changes or end-of-week cleanings. Keeping a few replacement sleeves on hand is advisable. Powder Hose: Hoses are prone to damage from various activities in the shop environment. Having spare hoses available allows for quick replacement and helps maintain an uninterrupted workflow. Consider using dedicated hoses for specific colors or clear coats to minimize contamination and facilitate faster color changes. Powder Gun Tip: Gun tips undergo significant wear from both the powder and the shop environment. They can warp and cause application issues over time or when the gun is dropped. Always keep an extra gun tip on hand to avoid production delays.
Where to Find Replacement Parts?
Finding the right replacement parts for your specific powder coating system is essential. The three major professional-quality powder application gun manufacturers—Wagner, Gema, and Nordson—offer different names and catalog numbers for their wear parts. To help you quickly locate the parts you need, we’ve included the names, descriptions, and part numbers for each manufacturer’s specific powder gun system.
By implementing routine maintenance, proper cleaning, and having essential replacement parts on hand, you can optimize the performance of your powder coating equipment. Don’t let preventable issues hinder your finishing process. Maximize your efficiency, extend the lifespan of your equipment, and achieve outstanding results.
Remember, proper maintenance and care are key to unlocking the full potential of your powder coating system. Need help troubleshooting?
Note: For specific replacement part names, descriptions, and part numbers, please consult the manuals provided by the manufacturers Wagner, Gema, and Nordson.