Guardian Coolant Recycling Systems | PRAB
Compliance
The PRAB Guardian removes free-floating and mechanically dispersed tramp oils to .1% or less, eliminating concerns about wastewater haul-away liabilities.
Health & Safety
The Guardian removes tramp oils and suspended solids from contaminated coolants and controls bacteria, minimizing employee exposure to lubricants that can cause health problems and lead to medical claims.
Low Maintenance
The Guardian coolant recycling system is a turn-key system that is easy to operate for minimized operator involvement and training.
Value
  • Reduce coolant waste up to 90%
  • Reduce haul-away costs
  • Typical payback in 6-9 months
  • Reduce new fluid purchase costs by up to 75%
  • Separated fluid can be sold or recycled

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:

  • Processes up to 1,500 gallons of coolant per hour with standard configurations; larger capacity is available upon request
  • Removes tramp oils and reduces up to 75% of new fluid purchases
  • Reduces hazardous waste disposal costs up to 90%
  • Typically generates system payback in 6-9 months
  • Minimizes operator involvement and training
  • Achieves tighter coolant clarity tolerances with optional polishing filter
  • Extends tool life and saves up to 25% in new tool purchases
  • Removes free-floating oils to 0.1% or less
  • Prevents rancidity with continuous overflow
  • Purges coalescing media of solids and sludge with automatic air sparger
Performantee | Prab.com

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 integrated Tramp Oil Separator removes up to 99% of free floating and lossy emulsifying tramp oil. This process extends coolant life, resulting in up to 75% savings on coolant purchases.

The unit removes mechanically dispersed tramp oil through a coalescing media compartment that is self-cleaning. The porous media pack 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 PRAB Guardian is available in three different configurations.

Base
Guardian HG800 - Base Model
The PRAB Guardian’s base configuration includes the following components:

  • An inlet basket strainer
  • Dirty and clean coolant tanks
  • A Tramp Oil Separator with a coalescing media pack (tellerettes)
  • A floating skimmer assembly
  • Steel oil weirs, manifolded together on exterior of the tank
  • An automatic air sparging system
  • A coolant make-up system
  • Control Panel
    • Allen Bradley components
    • HMI
  • Voltage: 460/3/60
    • Other voltage options available: contact factory for pricing and lead time

Standard
Guardian HG800 Standard Model
The PRAB Guardian’s standard configuration features all of the components included in the base version as well as some additional elements. Specifically, this package includes a polishing filter assembly that is typically 20-micron rated and a Coolant Manager. Proven to kill up to 99.9% of coolant bacteria, the Coolant Manager is a safe, economical solution that generates and injects Ozone directly into the coolant.

This specific treatment extends coolant life up to 25% and eliminates odors, clogged coolant lines, and slime in sumps. As a result, this decreases the likelihood of employee health issues. Additionally, the coolant manager reduces biocide use and oxidizes bacteria, viruses, cysts, spores, hydrogen sulfate (egg odor), and other contaminants both organic and inorganic.

Base configuration:

  • An inlet basket strainer
  • Dirty and clean coolant tanks
  • A Tramp Oil Separator with a coalescing media pack (tellerettes)
  • A floating skimmer assembly
  • Steel oil weirs, manifolded together on exterior of the tank
  • An automatic air sparging system
  • A coolant make-up system
  • Control Panel
    • Allen Bradley components
    • HMI
  • Voltage: 460/3/60
    • Other voltage options available: contact factory for pricing and lead time

Additional features included in the Standard configuration:

  • Coolant Manager: Ozone Generator
  • Polishing Filter Assembly: typically 20-micron rated filter

Deluxe
Guardian HG800 Deluxe Model
As the most robust Guardian package, the deluxe configuration includes every feature found in the standard version as well as some other components. In lieu of an inlet basket strainer, the deluxe uses a Paper Bed Filter with 10-micron rated media. A dirty coolant transfer system is also implemented.

Base configuration:

  • Dirty and clean coolant tanks
  • A Tramp Oil Separator with a coalescing media pack (tellerettes)
  • A floating skimmer assembly
  • Steel oil weirs, manifolded together on exterior of the tank
  • An automatic air sparging system
  • A coolant make-up system
  • Control Panel
    • Allen Bradley components
    • HMI
  • Voltage: 460/3/60
    • Other voltage options available: contact factory for pricing and lead time

Additional features included in the Deluxe configuration:

  • Coolant Manager: Ozone Generator
  • Polishing Filter Assembly: typically 20-micron rated filter
  • Dirty Coolant Transfer System
  • Paper Bed Filter: with 10-micron rated filter media
    • Note: Inlet Basket Strainer has been removed in lieu of the paper bed filter

AC³

A fully automated coolant concentration controller that is compatible with HG1200 units and above, 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.

More Table Content to the Right.
Drag to View.
Model Processing Rate Dirty/Clean Tank Capacity Length Width Height
HG400 10 gpm 200/200 gal 89″ 73″ 72.5″
HG600 10 gpm 300/300 gal 126″ 74.5″ 76.6″
HG800 15 gpm 400/400 gal 154″ 76.5″ 78.8″
HG1200 15 gpm 600/600 gal 168.6″ 77.5″ 86.1″
HG1600 25 gpm 800/800 gal 179.8″ 90.3″ 94″
HG2000 25 gpm 1,000/1,000 gal 174″ 91.3″ 101″
HG4000 25 gpm 2,000/2,000 gal 250″ 91″ 148″

The PRAB Guardian Coolant Recycling System removes tramp oils and suspended solids from contaminated coolant, controls bacteria and can adjust fluid concentration for fluid recovery. Typical ROI is 6-9 months, depending on the specifics of your application. Click below to estimate your payback time.

PRAB Guardian Coolant Recycling Systems ROI Calulator | 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.

Guardian Coolant Recycling Systems | Prab.com

Introduction to the Guardian and How it Works

The Guardian Works when Other Recycling Systems Fail

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.

To discuss your custom application

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