Reduce coolant waste up to 90%.
The effective solution to coolant recycling. The PRAB Guardian™ is a centralized system for recycling used coolants, reducing waste fluids up to 90%, and eliminating concerns about wastewater haul-away liabilities. Typical payback in six to nine months.
These versatile and centralized coolant recycling systems remove tramp oils and suspended solids from contaminated coolant, control bacteria and can adjust fluid concentration for fluid recovery. Each turnkey system is designed for easy installation, quick start-up, and simple, efficient operation- clearly making it the best coolant recycling solution on the market today. For a calculation of just how quickly you will pay this system back, call us for a free ROI estimate.
Advantages of PRAB Guardian™ Coolant Recycling Systems include:
Optional coolant monitoring and management can maximize coolant savings. Ask about the Guardian with optional AC³ concentration controller, or the Coolant Manager for complete automation of the 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 Manager
Control 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 a small briefcase, 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.
| Model | Processing Rate | Dirty/Clean Tank Capacity | Length | Width | Height |
|---|---|---|---|---|---|
| HG150 | 300 gph | 75/75 gal | 82″ | 48″ | 79″ |
| HG250 | 300 gph | 125/125 gal | 94″ | 48″ | 79″ |
| HG400 | 600 gph | 200/200 gal | 123″ | 55″ | 60″ |
| HG600 | 600 gph | 300/300 gal | 123″ | 67″ | 60″ |
| HG800 | 900 gph | 400/400 gal | 158″ | 64″ | 65″ |
| HG1200 | 900 gph | 600/600 gal | 168″ | 64″ | 77″ |
| HG1600 | 900 gph | 800/800 gal | 184″ | 85″ | 85″ |
| HG2000 | 1500 gph | 1,000/1,000 gal | 185″ | 100″ | 78″ |
| HG4000 | 1500 gph | 2,000/2,000 gal | 191″ | 113″ | 82″ |
Introduction to the Guardian and How it Works
Successful coolant filtration requires three components (1) particulate removal, (2) tramp-oil removal, and (3) coolant concentration control. The Guardian™ Coolant Recycling System incorporates all three elements—not just pieces—for maximum coolant life. This combination makes it the most efficient option for centralized recycling of metalworking cutting fluids. If your current process is labor intensive, requires a lot of downtime for sump maintenance, or lacks the capacity to handle all the fluid, it’s time for a change. In this video, see how the PRAB Guardian recycles your spent cutting fluids to significantly decrease coolant spend and eliminate tramp-oil issues.
Why does the PRAB Guardian Coolant Recycling System succeed when other systems fail? Successful recycling requires particulate filtration, tramp oil removal, coolant concentration control, and bacteria elimination. The PRAB Guardian incorporates all of them into a fully automated coolant recycling process that is easy to operate and requires minimal maintenance. Large particulate is removed during per-filtration. This process extends tool life by at least 25% for increased uptime and improved surface finish for improved part quality. Multiple secondary filtration options including Magnetic Separators, Paper Bed Filters, and Centrifuges are available when finer filtration is required. An integrated Tramp Oil Separator removes up to 99% of free floating and lossy emulsifying tramp oil. This process extends coolant life, resulting in 75% savings on coolant purchases. The Guardian removes mechanically dispersed tramp oil through a coalescing media compartment that is self-cleaning. The porous coalesce media is highly efficient offering an optimum ratio of coalescent area in open space to pull the maximum amount of tramp oil from the fluid. PRAB’s weir design guarantees the highest purity of oil for maximum value. The separated oil is gravity discharged off to a customer provided container. PRAB offers a coolant concentrated control package that automatically monitors and controls the concentration of coolant in the Guardian Coolant Recycling System. The coolant manager injects ozone directly into the recycled coolant to help control bacteria, viruses, yeast, molds and other hazards that contribute to dermatitis. It is proven to kill 99% of coolant bacteria and extends coolant life up to 25%. Clean coolant passes through a polishing filter on the way back to the machine to further remove any remaining fine particulates. Acting has the last line of defense. PRAB Guardian Coolant Recycling Systems are proudly made in the USA and delivered documented reduction of new fluid purchases up to 75%. Reduced cutting fluid disposal cost by approximately 90% and typical systems payback within 6 to 9 months. Calculate your ROI at PRAB.com.
Product Brochures
Product Brochure: Guardian Coolant Recycling Systems
Product Brochure: Coolant Manager
Product Brochure: Coolant Concentration Control
Product Brochure: Mobile Sump Cleaner
Product Brochure: Sump Cleaner Transport Options
Case Studies
Case Study: Aerospace Components Manufacturer Reduces its Environmental Impact and Cuts New Coolant Purchases by 75%
Case Study: Aerospace Components Manufacturer Turns Its Waste Stream into a Revenue Stream
Case Study: Auto Parts Manufacturer Reduces Coolant Purchase Costs and Eliminates Used Coolant Disposal in First 12 Months
Case Study: Cameron International Improves Profitability, Reduces New Coolant Purchases by Recycling Coolant with Guardian System
Case Study: Cashing in Your Chips
Case Study: Iowa Industrial Hydraulics Reduces Coolant Waste by 90% with Installation of a PRAB Guardian 400
White Paper
White Paper: Avoiding Accidents, Injuries & Illnesses In Metalworking Operations
White Paper: Getting the Most Value from Metal Scrap and Spent Fluids
White Paper: Green Engineering
White Paper: Making Wastewater Compliance Part Of A Profit Strategy
White Paper: Reducing Haul-Away Costs in Metalworking Operations
White Paper: Prioritizing Plant Housekeeping In A Metalworking Operation
Other Downloadable Content
PRAB Fluid Filtration Solutions Product Selection Chart Brochure
PRAB Fluid Filtration Systems and Wastewater Treatment Brochure
PRAB Filtration Spectrum Brochure
PRAB Builds Equipment for the Toughest Jobs in Manufacturing and Metalworking
PRAB completes comprehensive sample testing to establish an accurate understanding of the unique characteristics of your mixed solution and its industrial applications. This test determines the correct centrifuge system design and capacity to optimizes the filtration process within your facility
When you’re ready to get started, contact us or request a material test.
CHALLENGE Concerned with various problems associated with water soluble coolants, including rising costs and foul sump odors, Iowa Industrial Hydraulics developed a coolant management system featuring PRAB’s Guardian 400 to recycle spent coolant and reduce fluid purchase costs by 60%. During the late 1980’s, Iowa Industrial Hydraulics, like many other manufacturers, was experiencing various problems with […]
Download Automatic Coolant Concentration Control Automatically control the concentration of coolant in your Guardian™ Coolant Recycling System The AC3 Fluid Monitor is an economical in-line process refractometer. The unit’s simple design has only one piece: a detection unit with an affixed digital display. Instead of interrupting an automated process, the embedded processor tests for Brix continuously while the […]
Cutting fluids play a very important role in metalworking by providing lubrication to the working area which decreases the amount of heat generated while cutting—preventing tools from exceeding critical temperature ranges. However, cutting fluid deteriorates over time as it becomes contaminated with tramp oils, metal fines, and bacteria. As it breaks down, it can damage machining tools, pumps, and […]
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Sales Manager
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Sales Manager
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(800) 968-7722
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