Coolant is a recurring consumable cost for every CNC shop. Beyond the purchase price, factor in sump life, disposal cost, and the impact of coolant quality on tool life and part...
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Request a Proposal →Coolant is a recurring consumable cost for every CNC shop. Beyond the purchase price, factor in sump life, disposal cost, and the impact of coolant quality on tool life and part quality. This calculator gives the total cost of ownership perspective.
With proper maintenance (concentration control, tramp oil removal, pH monitoring): 6-12 months for water-miscible coolants. Without maintenance: 1-3 months before bacterial growth causes rancidity. Synthetic coolants tend to last longer than semi-synthetics and soluble oils because bacteria cannot metabolise synthetic lubricants.
Cheap coolant may cost $5/litre vs $12/litre for premium. But premium coolant lasts 2x longer in the sump, provides better tool life (10-20% improvement), reduces rust and dermatologist issues, and requires less maintenance. The coolant purchase price is typically under 10% of the total cost of using it.
Extend sump life (reduces disposal frequency), use a coolant recycler/centrifuge (removes tramp oil and fines), consider minimum quantity lubrication (MQL) for certain operations, and compare disposal quotes from multiple licensed waste handlers. Disposal costs have risen sharply due to tightening environmental regulations.
Enter the coolant concentrate price per fill, sump life in months, and number of machines. The calculator estimates annual coolant cost and 5-year total cost of ownership. Add disposal cost ($200-500 per sump) to the annual figure for a complete budget.
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Use the calculator freely. If the result points to a tooling or process problem, we can source the exact carbide tooling you need from vetted factories in China. Compare factory-direct pricing.
Before you commit to a spec, it helps to know what the market pays for it. These are real, publicly listed factory prices — not a quotation, and not a guess.
We source the tool families below direct from vetted Chinese factories, matched to the material and tolerance you just worked out. Every batch ships with its material certificate and dimensional record.
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TOTALLING COOLANT COST? Coolant is the visible cost; the tool wear caused by bad coolant is the invisible one. See where the money really sits in a carbide tool's price.
We source carbide cutting tools from China for job shops. We do not own a factory, which is why we can quote your drawing against two or three plants that actually run your material.
Cutting formulas with the units worked through · Speed and feed starting points for all six ISO material groups · How to read a carbide grade past its ISO code. 12 pages.
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