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PRAB Guardian Coolant Recycling System



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Proven to Reduce Your Coolant Disposal Costs Up to 90%

The Effective Fluid Filtration Solution to Coolant Management Challenges

PRAB’s Guardian Coolant Recycling System is a centralized, economical solution to the high costs associated with maintaining water-based coolants and washwater in the metalworking industry. The Guardian system recycles used coolants, reducing waste fluids by up to 90%, and eliminates concerns about wastewater haul-away liabilities. Everything you need for centralized coolant recycling is included with the Guardian. Each turnkey system is designed for easy installation, quick start-up, and simple, efficient operation. PRAB backs every Guardian system with a 100% performance guarantee.

Product Brochure: PRAB Guardian Coolant Recycling System Hero Image | Prab.com

 

System Features:

  • Removes free-floating and mechanically dispersed tramp-oils to .1% or less
  • Integrated coolant make-up system replaces coolant lost due to evaporation or drag out with correctly proportioned coolant mix
  • Larger and custom-designed systems are available
  • Removes solids down to the desired filtration
  • 100% Performance Guarantee

Available Options for Enhanced Operation:

  • Customized filtration
  • Polishing filter
  • Coolant manager
  • Coolant return system

 

 

“We have seen around a 75% savings on new coolant purchases.”

 

 

– Alexandre Blinov, Koss Aerospace

 

 

Backed by the PRAB Difference

 


Guardian Configuration Packages:

 

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 Guardian’s standard configuration includes all the components of the base version, along with some additional elements. Specifically, this package includes a polishing filter assembly rated at 20 microns 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 all the features found in the standard version, as well as additional 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 the exterior of the tank
  • An automatic air sparging system
  • A coolant makeup 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 compatible with HG1200 units and above, the AC³ maintains 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, maintaining optimum ratios and achieving maximum tool life.


Reduces New Coolant Purchases Up to 75%

Easy to Operate & Maintain

The PRAB Guardian Coolant Recycling System is equipped with an automatic air sparger to maintain clean coalescing media, a high-level tramp-oil switch that shuts down the system when the tramp-oil container is full, thereby eliminating the potential for tramp-oil spillage and a comprehensive control panel for ease of operation. Backed by a 100% Performance Guarantee.

Model
Processing Rate
Gallons Per Minute
Dirty/Clean Tank
Capacity (Gallons)
Overall
Length
Overall
Width
Overall
Height
HG400
10
200/200
89″
73″
72.5″
HG600
10
300/300
126″
74.5″
76.6″
HG800
15
400/400
154″
76.5″
78.8″
HG1200
15
600/600
168.6″
77.5″
86.1″
HG1600
25
800/800
179.8″
90.3″
94″
HG2000
25
1000/1000
174″
91.3″
101″
HG4000
25
2000/2000
250″
91″
148″

 

PRAB Guardian Coolant Recycling System Diagram

 


 

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