Machine Tool Coolant Filtration

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Maintenance and disposal of coolants is a significant cost for metalworking industry.  In the absence of filtration, machine coolants can quickly accumulate large metal chips and small (<100 micron) particles. A large number of these abrasive particles are invisible to the naked eye and will cause premature failure of tools, damage nozzles, reduce coolant life and negatively impact surface finish.  Considering the cost of coolant changes, rejected parts, tools and machine breakdowns, a well-designed coolant filtration system will pay for itself quickly and continue to provide cost savings long after it is installed.


  • Longer coolant and machine life
  • Less equipment down time
  • Improved production rate
  • Reduced rejections and defective parts
  • Improved surface finish
  • Longer tool life
  • Reduced consumables costs
  • Reduced coolant disposal costs
  • Avoid rough cuts
  • Discourage bacterial growth

Siga Filtration can offer a range of low maintenance industrial solutions for coolant filtration. These range from inline filtration to fully customised filtration systems for both online and offline filtration. See how our products work for coolant filtration:

See how our products work for coolant filtration:

  • Inline design for easy installation
  • Removal of dirt and chips from cutting fluid
  • Industrial grade 304 Stainless Steel construction
  • Coolant compatible materials – 304SS and Viton
  • High pressure rating – up to 25 bar
  • Operating temperature – up to 80°C
  • Threaded or optional clamped closure
  • 1” BSPF connections
  • Available in 5”, 10”, 20” & 30” lengths
  • Optional DP Gauge to indicate cartridge change-out

  • Remove large chips and small particles down to 0.5 micron
  • Reduce component wear
  • High efficiency filtration, significantly more efficient than strainers.
  • High dirt holding capacity
  • Coolant compatible PP material
  • No additives or binders
  • Rigid structure to withstand hydraulic shock and eliminate particle unloading.
  • Easy removal from filter housing.

  • Space saving compact design
  • Industrial grade 304 Stainless Steel construction
  • Coolant compatible materials – 304SS and Viton
  • Pressure rating – up to 10 bar
  • Operating temperature – up to 90°C
  • 1 ½” BSPF connections
  • Quick release clamped closure (bolted closure available)
  • Available in bag sizes 3 (4” x 9”) & 4 (4” x 14”)
  • Optional DP Gauge to indicate filter change-out

  • Remove large chips and small particles down to 0.5 micron
  • High flow rate & long service life
  • High dirt holding capacity
  • Reduce operating costs
  • Available in Polypropylene & Polyester
  • Chemical compatibility
  • Strong welded construction to withstand damage from chips

Filtration ratings down to 0.5 micron to suit all types of finishing requirements


  • We can advise on all stages of filtration projects from running trials to filter selection, sizing and delivery.
  • Over ten years experience in designing and selecting filtration equipment.
  • Comprehensive range of filtration products allows us to select the best filter for your application.
  • All filtration products comply fully with latest regulations and pressure vessel design codes.


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  • 1FU Series Single Cartridge Filter Housing (Threaded Closure)

    acuraLine 1FU Cartridge Filter Housings are industrial inline filtration units. These filter housings feature strong Stainless Steel construction, robust threaded closure, high operating pressures of up to 25 barg and option to mount a differential pressure gauge. All 1FU filter housings are supplied with a Viton seal as standard for chemical compatibility. Option to mount differential pressure gauge to indicate blocked filters.

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  • acuraBag Industrial Filter Bags

    acuraBag Filter Bags offer a cost effective solution for high flow rate filtration. Self-aligning design of moulded collar provides hermetic sealing inside the basket. Collars are manufactured from the same material as the bag to provide excellent chemical compatibility. Available in a range of micron ratings and industry standard sizes, all acuraBag filter bags are Silicone free, come with integrated handles for easy removal and supplied individually wrapped to avoid contamination. Polyester felt material is ideal for high temperature applications.

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  • acuraMultiflow PP Spun Filter Cartridge

    acuraMultiflow depth filter cartridges provide exceptional performance in clarification and prefiltration applications. These cartridges work by trapping a wide range of particle sizes throughout the fibre matrix. 100% Polypropylene construction provides excellent thermal and chemical resistance, making acuraMultiflow filter cartridges ideal for use in water and chemicals.

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  • Inline ALSI Bag Housing for Size 3 & 4 (4″ Dia) Filter Bags

    Inline variant of ALSI bag housings, allows for easy inline installation, rapid assembly/disassembly and connection to flexible hoses with camlcok fittings. Inline ALSI bag housings feature a Stainless Steel construction, quick release clamped closure with safety clip and come complete with a bag locking plate and mesh basket.

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