How to Clean Your CNC Machine & Replace Coolant for Maximum Efficiency

Regular cleaning and coolant replacement are essential for maintaining your CNC machine’s efficiency, accuracy, and longevity. Here’s the best step-by-step process to clean your CNC machine and replace the coolant properly.

Step 1: Power Down the Machine

✅ Turn Off the CNC Machine – Ensure the machine is completely powered off and disconnected from the power supply for safety.

✅Wear Safety Gear – Use gloves, safety glasses, and protective clothing to avoid contact with coolant residues and metal chips.

Step 2: Remove Chips & Debris:

🔹 Use an Industrial Vacuum Cleaner – A high-powered CNC industrial vacuum cleaner (like Cleantek oil mist & chip collector) efficiently removes metal chips and fine dust from the machine’s bed, enclosures, and coolant tank.

🔹Blow Out Hard-to-Reach Areas – Use a compressed air blower to remove stuck chips from tight corners.

🔹Wipe Down Surfaces – Clean surfaces with a lint-free cloth and a mild degreasing solution.

Step 3: Drain the Old Coolant

💧 Pump Out the Coolant – Use a coolant vacuum cleaner to completely extract the used coolant from the reservoir.

💧Dispose of Old Coolant Safely – Follow local environmental regulations for proper disposal.

Step 4: Clean the Coolant Tank & System:

🔸 Scrub the Tank & Lines – Use a brush and a non-corrosive cleaning solution to remove sludge and bacterial buildup.

🔸Flush with Water or Cleaning Solution – Run clean water or a specialized CNC machine cleaning agent through the system to remove contaminants.

🔸Dry Completely – Use compressed air or a clean rag to dry the tank and internal parts before refilling.

Step 5: Replace with Fresh Coolant

✅ Choose the Right Coolant – Select a high-quality CNC coolant that matches your machine’s specifications.

✅Mix Coolant with Water – Follow manufacturer guidelines for the correct coolant-to-water ratio.

✅Refill the Tank – Pour the new coolant into the machine’s reservoir.

✅Run the Coolant Pump – Circulate the coolant through the system for a few minutes to ensure proper flow.

Step 6: Final Inspection & Maintenance

✔️ Check Coolant Flow & Pressure – Ensure there are no clogs or leaks.

✔️Inspect Machine Components – Lubricate moving parts and check for wear and tear.

✔️Monitor Coolant Condition – Regularly check coolant concentration and pH levels to maintain optimal performance.

Why Use Cleantek CNC Coolant Vacuum Cleaner?

🔹 Efficient Coolant Extraction & Filtration
🔹Removes Metal Chips & Oil Mist
🔹Increases Machine Lifespan
🔹Improves Shop Floor Cleanliness

By following these steps, you ensure better cutting performance, extended machine life, and a cleaner work environment. Need an efficient coolant vacuum cleaner? Contact Cleantek today!