5 Ways To Keep Your Cool
The cooler a plasma torch runs, the better the cut result – with less slag and unintended bevel.
Regular monitoring of torch coolant system integrity, as well as consistent maintenance of the entire cooling system will yield longer consumable life, produce better cuts and lessen the time needed for post-cut grinding and cleanup.
If your plasma torch cooling system isn’t operating at its optimal level, check the 5 potential trouble spots listed below.
1. You Got Me Under Pressure
- Is the filter upstream from the pump old or dirty? Clean the filter or replace it with a new one.
- Is the pump itself in good shape? As pumps age, their efficiency wanes. Adjust the pump to allow for wear — or better yet, replace it.
- Are hoses and fittings flush and tight?
2. Resistance is Futile
3. Go With The Flow
The coolant may not be flowing through the system at the proper volume. Collect and measure the volume from the return line for about one minute, then see how your result stacks up against the manufacturer’s recommendation.
4. Keep Cool and Carry On
- If you have checked out all the above and the coolant temperature is still running hot, you may have a failure with one of the mechanical or electronic system components, and the equipment manual will be required for further diagnosis. More troubleshooting clues and information about coolant here.
- If the coolant is freezing on its trip through the system, make sure the mix of water-to-glycol matches the specifications recommended by your manufacturer for your climate. Glycol reduces the freezing point in water, making freeze-ups less likely.
Learn more about coolant here.
5. Let’s Be Perfectly Clear About This
If you have found that returning coolant appears chalky white, most likely air is entering the system at some point. A main cause of this is a low level of coolant in the reservoir.
Make sure the level of coolant in the reservoir is always at the manufacturer’s recommended level. If coolant levels are correct and the milkiness persists, check the inlet connection on the pump, including the gasket, to ensure a tight fitting.
Check the 5 areas listed above to keep your PHD®, Hypertherm®, Esab® or Thermal Dynamics® plasma cutting torch running smoothly.