7 Maintenance Tips to Make Your CNC Plasma Machine Last Longer

7 Maintenance Tips to Make Your CNC Plasma Machine Last Longer

If you’ve invested in a CNC plasma machine, you’ve likely got big plans for your business or personal projects. But, without proper maintenance, your machine is at risk of wearing out, resulting in costly repairs and replacements and wasted time and resources. However, with a little bit of know-how, you can extend the life of your device and maximize its capabilities.

In this article, we’ll share our top tips on how to maintain your CNC plasma machine so you can avoid downtime and ensure that it delivers the results you need every time.

1. Clean Torch Leads

One essential component of your machine that you should not overlook is the torch leads. Over time, metal dust and debris can accumulate on the leads, which can obstruct the plasma arc from starting. This obstruction can cause the machine to malfunction, resulting in costly downtime and repairs.

To avoid these issues, it’s important to clean your torch leads regularly. You can do this using a specialized cleaning tool or a dry cloth. Be sure to inspect the leads for any signs of wear and tear, such as kinks or exposed wiring, and replace them immediately if you spot any abnormalities.

2. Monitor Grease

Grease plays a vital role in lubricating the machine’s moving parts and preventing wear and tear. Without proper lubrication, the machine’s parts experience more friction and wear down faster.

To monitor your machine’s grease levels, start by referring to the manufacturer’s manual to determine how often you should be greasing your machine. The advice can vary depending on the model and usage, so it’s essential to follow the recommended schedule to keep your machine in top shape.

3. Ensure Rail Sections and Bearings are Aligned

Proper alignment of the rail sections and bearings is essential to ensure that your CNC machine operates efficiently and produces high-quality cuts. Check that the rail sections are aligned correctly and that the distance between the rails is consistent throughout the system.

You also want to avoid any gaps between gears and racks. Plus, make sure to adjust the alignment of bearings to eliminate any visible light between them and the rail surface. Moreover, make sure the torch-mounting component of the machine is sturdy and has no play to avoid vibrations and wavy cuts.

By ensuring that your CNC machine is properly aligned, you can minimize wear and tear on the machine, extend its lifespan, and produce high-quality cuts.

4. Check the Power Supply and Grounding

Checking the power supply and grounding of your CNC machine is crucial for preventing damage and ensuring your machine runs smoothly. Before opening the power supply, disconnect all electrical power and make sure the line disconnect switch is off. Once the cover is removed, use a vacuum or compressed air to remove any dust or debris that could cause damage to internal components.

In addition, check the filters and fans for any damage or signs of wear and replace them if needed. Finally, make sure all components of the system, including the power supply and ignition console, are individually grounded to avoid electrical issues and ensure proper operation.

5. Inspect Air Filters and Coolant Levels

Inspecting air filters and coolant levels is also essential for maintaining the longevity and effectiveness of your CNC plasma table.

First, examine all air filters to check for signs of moisture, oil, or particulates. If the filter is discolored or dirty, it should be replaced with a new one.

Also, keep an eye out for the color of the coolant. If the color is gray or black, it could be a sign that the pump is failing. By regularly inspecting air filters and coolant levels, you can help ensure that your CNC plasma machine is operating smoothly and efficiently.

6. Check the Serviceable Life of Parts

When it comes to CNC machinery, it’s crucial to know when it’s time to replace worn-out parts. Using a machine or part beyond its serviceable life can be costly and lead to reduced performance. Check the serviceable life of your machine’s parts regularly–doing so can help prevent downtime and costly repairs.

Don’t let sentimentality dictate your decision-making when it comes to your CNC machine. If a part has reached the end of its serviceable life, it’s time to retire it and invest in a newer, better version. This will improve your work and save you time and money in the long run. Stay proactive with maintenance and part replacement, and you’ll see improved performance and longevity of your CNC machine.

Related Posts: Top Do’s and Don’ts for CNC Machines

7. Tune Drive Motor and Control

If you notice issues with the drive motors or torch positioning, they may need to be tuned. The process requires a lot of patience and technical expertise and should not be attempted by someone unfamiliar with the machine’s inner workings.

Thankfully, modern technology like IRIS (Intelligent Real-time Information Software) can make tuning your drive motor and control easier. IRIS allows you to access detailed diagnostic information that can help you identify and correct any issues quickly and efficiently. This could ultimately help you minimize downtime and avoid unnecessary costs.

Regular maintenance is crucial for extending the lifespan of your complete CNC plasma table system. By following these tips and referring to the manual or seeking professional help when needed, you can ensure that your machine stays in optimal condition and operates efficiently for years to come.


If you’ve bought a CNC plasma machine, you probably have huge intentions for your professional or private endeavors. But without routine maintenance, your machine is susceptible to deterioration, which would need expensive repairs and replacements as well as a loss of time and money. But with a little bit of knowledge, you can optimize your device’s potential and increase its lifespan.

7 Maintenance Tips for CNC Plasma Machines Infographic

 Simon Patterson

Simon Patterson

Simon Patterson is the owner and founder of Squickmon's Engineering & Engineering. With over 15 years of fabrication and manufacturing experience, alongside a mechanical engineering degree, he knows exactly what it takes to create a quality product for small fabrication shops as well as large industrial manufacturing companies. He set out to create a company that stands by their products with confidence as well as integrity. His goal was to build a company with a strong foundation, quality product, satisfied customers, and a product that is 100 percent designed and built in the USA.

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