How often should I check coolant concentration?

Check coolant concentration at least once per shift in high-production environments. For job shops with moderate usage, daily checks are sufficient. After adding water or coolant concentrate, always recheck and adjust to maintain the target concentration.

What causes poor refractometer readings?

Tramp oil contamination, dirty prisms, and temperature variation are the most common causes. Clean the prism with a soft cloth and distilled water before each reading. If the coolant appears cloudy or has visible oil sheen, take a sample from below the surface for a more accurate measurement.

Does concentration affect tool life significantly?

Yes. A 1% deviation from optimal concentration can reduce tool life by 15–25%. Below-optimal concentration reduces lubricity and cooling capacity, while above-optimal concentration reduces heat transfer. Maintaining tight control (±0.5% of target) consistently extends tool life. ⚡ Calculated for Carbide-Tooling.com High-Performance Series. View Catalog →

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ターゲット集中 (%)

Actual Conc. (%)

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Target Brix

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⚙電卓

ブリックス読み取り (屈折計)

ターゲット集中 (%)

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ブリックス読み取り (屈折計)