• Automated Systems for Processing Metal Turnings and Recovering Cutting Fluids

  • Automated Conveyor Systems for Metal Stamping, Laser and Die Cast Scrap

  • Custom-Engineered Fluid Filtration and Recycling Systems

Guardian Coolant Recycling

Cut spent coolant disposal costs up to 90%

PRAB Guardian Coolant Recycling SystemThe more you can clarify your metalworking coolants, the less waste you'll haul away.

You can cut your coolant waste disposal costs up to 90% and your need to buy new coolant up to 75% with PRAB's Guardian coolant recycling system.

This versatile fluid collection point removes tramp oils and suspended solids from contaminated coolant, controls bacteria and adjusts your fluid concentration. It allows you to reuse your coolant over and over. For a free calculation of just how quickly you'll pay this machine back, call us. You'll see it's clearly the best coolant recycling solution on the market today.

For more information or to request a quote, call us at 800-493-3462.


Guardian Coolant Recycling System

PRAB Guardian Coolant Recycling System


Application in Review

BREK Manufacturing Co., Aerospace Parts Manufacturer

BREK Manufacturing Article CoverKalamazoo, Mich., February, 2015 – Featured in Modern Machine Shop Magazine. The more chips a company cuts, the better. But once the output reaches a certain volume, it may be time to look beyond traditional disposal methods toward more efficient systems. New chip processing equipment, linked with coolant filtration systems, can raise the value of scrap metal going to the recycler, reduce material handling and maintenance concerns, filter coolants for reuse in machine tools, and help a company achieve ISO 14001 environmental compliance.

Click on the button below to learn more about how this Aerospace parts manufacturer increased the value of their scrap and reduced new coolant purchases.

Learn more about the benefits of a Guardian Coolant Recycling System.


Coolant Monitoring

Optional coolant monitoring and management maximizes coolant savings. Order the Guardian with the AC³ or the Coolant Manager for complete automation of your coolant recycling process

AC³ – A fully automated coolant concentration controller, the AC³ will maintain set concentration levels within +/- 0.5% accuracy. The exclusive logic built into the controller, allows more or less concentrate to enter the discharge flow of the Guardian system. This comprehensive system provides the necessary intelligence to accurately and automatically inject new concentrate only as needed to maintain optimum ratios and achieve maximum tool life.

Coolant ManagerPRAB Coolant Manager for the Guardian Coolant Recycling SystemControl bacteria safely and effectively with the PRAB Coolant Manager, an Ozone injection module designed to prevent coolant rancidity. The device, which is the size of small brief case, a single Coolant Manager can maintain a sump containing up to 3,000 gallons of coolant. Ozone is the natural choice for coolant bacteria control, eliminating the need for biocide. The Coolant Manager works with all common types of coolant; water, soluble oils, semi synthetic coolants, synthetic coolants, and alkaline cleaners.

  • Process up to 1,500 gallons of coolant per hour; larger capacity systems available.
  • Remove tramp oils and reduce new coolant purchases up to 75%.
  • Meet tighter coolant clarity tolerances with optional polishing filter.
  • Extend tool life and save 25% in new tool purchases with Guardian-clarified coolants.
  • Remove free-floating oils to 0.1% or less.
  • Continuous overflow prevents rancidity.
  • Purge coalescing media of solids and sludge with automatic air sparger.

The Guardian coolant recycling system uses three separate principles to recondition metalworking coolants commonly used in individual machine tools:

  • Gravity settling
  • Filtration
  • Coalescence

It is equally effective for washing compounds and other water-soluble mixtures where tramp oils and suspended solids detract from performance.
Guardian Coolant Recycling System with component descriptions.









300 gph

75/75 gal

82 in

48 in

79 in


300 gph

125/125 gal

94 in

48 in

79 in


600 gph

200/200 gal

123 in

55 in

60 in


600 gph

300/300 gal

123 in

67 in

60 in


900 gph

400/400 gal

158 in

64 in

65 in


900 gph

600/600 gal

168 in

64 in

77 in


900 gph

800/800 gal

184 in

85 in

85 in


1500 gph

1,000/1,000 gal

185 in

100 in

78 in


1,500 gph

2,000/2,000 gal

191 in

113 in

82 in

*Dimensions are for reference only.