Signs That It Is Time To Change Your Metalworking Coolant

Signs That It Is Time To Change Your Metalworking Coolant

Sep 20th 2023

Machining often requires high heat and friction that can damage metal components if operators aren’t careful. In such cases, a metalworking coolant can make the process go more smoothly.

Unfortunately, fluids can become dirty over time, making them less useful for industrial applications. Here are the signs that it is time to change your metalworking coolant.

Low Levels

Low sump levels are the first indicator that it’s time to change your metalworking coolant. While there are many different formulations that industrial workers can use to reduce heat and particulate matter, it won’t be able to do its job if the concentration isn’t correct.

When metalworking fluids become too lean, they no longer perform effectively. If the sump loses more than half its fluid, you know you have an issue on your hands.

Abnormal Appearance

Another problem with metalworking coolant is that it loses the proper pH, which can lead to discoloration. During regular operation, high heat levels can cause the coolant to oxidize and darken the oil. While this is normal, other color changes should be taken seriously.

Gray or black fluid means that it’s been contaminated by bacteria. A yellow discoloration may indicate the presence of oil that leaked into the system. If your die is fading, it probably means the fluid is getting too old and needs to be changed.

Rancid Smell

You may also notice a rancid smell coming from your metalworking coolant. Because coolants contain organic compounds, they can start to grow bacteria. Your sump may also be contaminated, which can cause issues if the filter or screen becomes clogged.

Foul smells may also be due to the presence of additional chemicals in the mixture. It’s important to be careful of mixing chemicals since they can degrade the system and produce harmful gas.

Debris in the Fluid

Metalworkers may also find that there’s debris in their coolant. The composition of metalworking fluids can be changed or altered if cleaners and other items aren’t adequately flushed out of the system. Improperly recycled chemicals and matter can result in excess debris.

Unwanted materials should be flushed from the system immediately so that they don’t cause damage. Excessive contamination will make it harder to complete tasks and can be hazardous in some cases. The best metalworking fluid synthetic lubricants will make cutting and grinding a breeze.

Keep Your Equipment Operational

Metalworking is an essential industrial process, but workers must be equipped to deal with ongoing challenges.

Watching for signs that it is time to change your metalworking coolant will ensure you are able to complete your work without a hitch.