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Cutting fluid filtration is probably the best return-on-investment in any machining workshop. Proper filtration can multiply your coolant's service life, improve surface finish and reduce tool wear.
Why filter your cutting fluid?
- Chips and metal fines: particles causing scratches and abrasive wear on pumps
- Tramp oil: slideway/hydraulic oils that destabilise the emulsion
- Organic matter: waste that feeds bacterial growth
- Grinding dust: abrasive particles from wheels
Fact: A well-filtered cutting fluid can last 6 months to over 2 years. Without filtration, typical change is every 4-8 weeks. The filtration equipment pays for itself in 2-3 avoided changes.
Filtration types
Gravity filtration with filter paper
Simplest and most economical. Coolant passes through a filter paper roll by gravity. Available in 25µ (fine) to 43µ (standard).
Pressure filtration (portable units)
Units with pump that draw coolant through a filter and return it clean. Flow rates from 30 to 100+ L/min.
Recommendation: Portable units like L30, L60 or L100 are the most versatile option. A single unit can serve an entire workshop.
What micron rating do I need?
- 43µ: standard, sufficient for most turning and milling
- 33µ: medium, good balance of filtration and speed
- 25µ: fine, recommended for grinding and high-quality finishes
How to size your filtration equipment
- 50-200L sump: L30 (30 L/min)
- 200-500L sump: L60 (60 L/min)
- 500-1000L sump: L100 (100 L/min)
Filtration equipment and consumables
L30 Filtration (30L/min) L60 Filtration (60L/min) L100 Filtration (100L/min) View all equipmentNeed help choosing filtration equipment?
Tell us about your machines and sump volumes, and we'll recommend the optimal solution.
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