Product Info


The perfect MQL metal cutting companion.

  • Continuous precision output
  • Reliable Unist pump
  • Separate air/fluid control
  • Ideal MQL solution - reduce fluid use & save!

constant signal = constant lubrication

  • Reduces fluid usage
  • Promotes a clean and safe work environment
  • Prolongs tool life
  • Improves cut quality
  • Made for environmentally friendly Coolube®
  • Dry chips - higher recycling value

Benefits of Using a Precision Lubricator

With its precision positive displacement pump and individually adjustable air and fluid volumes, the Coolubricator™ precision lubricant system is the perfect Minimum Quantity Lubrication solution for metal cutting.


Dial in the "Sweet Spot"

With MQL, individual metal cutting applications each have their own "sweet spot" or precise amount of fluid necessary for optimum efficiency. Too little fluid, or too much fluid and tool life can suffer and fluid can be wasted. The Coolubricator™ gives you precise control over fluid output with separate fluid and air output adjustment. This means finding the sweet spot for your application is a breeze and once it's set, you can count on the Coolubricator™ to deliver the perfect amount of fluid again and again.


Separate Air & Fluid

is the key to delivering consistent atomization and fluid distribution over extended lengths of supply tubing. This is where the patented Unist Co-Axial Nozzle steps in. Fluid and air are kept separate until they are combined at the nozzle tip. This creates an evenly atomized spray and eliminates messy drips. Be sure to order your Coolubricator{tm} with Co-Axial hose and nozzle to maximize your lubricant delivery!

Features, Specs & Options


  • Produce dry chips with higher recycling value
  • Eliminate flood coolant treatment & disposal
  • Apply ounces per day instead of gallons
  • Eliminate carbide tool thermal shock
  • Eliminate flood coolant mess
  • Increase production rates
  • Improve surface finish
  • Extend tool life

Technical Specifications

    • Continuous Output – Pulse Generator = infinite cycling at an adjustable 5-200 pulse/min.
    • Multiple outputs - up to 16 pumps for 16 individual output options

    Pumps(4 types available):
    • Standard 1 Drop (0.03 mL per stroke)
    • Standard 3 Drop (0.10 mL per stroke)
    • Multi-Viscosity(MV) 1 Drop (0.045 mL per stroke)
    • Multi-Viscosity(MV) 2 Drop (0.10 mL per stroke)

    • Control air input with manual valve, air pilot valve, or 3-way solenoid valve (110VAC or 24VDC)

    • 16 oz. (473 ml), polyethylene
    • 32 oz. (946 ml), polyethylene
    • 64 oz. (1893 ml), polyethylene
    • 64 oz. (1893 ml), polyethylene with low level

    Options & Accessories


    Magnet mounts

    Mount securely to magnetic surfaces. Includes 4 strong, rare-earth magnets each capable of supporting 15lbs of weight for a total of 60 lbs, and mounting hardware.



    Mount securely using 5/16" (7mm) dia. mounting flange holes and your own compatible hardware (no hardware supplied).


    Air pilot valve

    For use with a low-flow air signal.


    Solenoid valve

    For actuation using an electrical signal from the machine.


    Manual valve

    3-way slide valve for simple manual on/off control.


    Foot valve

    Hands-free manual operation.


    Standard 1-drop pump

    (0.03 mL per stroke)


    Standard 3-drop pump

    (0.10 mL per stroke)


    Multi-Viscosity 1-drop pump

    (0.045 mL per stroke) Select this option to match your fluid delivery needs


    Multi-Viscosity 2-drop pump

    (0.10 mL per stroke) Select this option to match your fluid delivery needs


    1-3 outlet enclosure


    4-6 outlet enclosure


    7-11 outlet enclosure


    12-16 outlet enclosure


    16 oz [473 mL] polyethylene


    32 oz [946 mL] polyethylene


    64 oz [1893 mL] polyethylene with low level switch

    (Also available without a low level switch)


    Air trap

    For use with a pressurized fluid supply.


    Spray nozzle options

    Multiple styles/lengths available

    Related Videos

    Rebuilding MV Pumps

    Learn how to rebuild your MV (Multi-Viscosity) pumps.

    Tips & Tricks of Working with Coaxial Tubing

    Learn tips for working with coaxial tubing.

    Priming A Pump-Based MQL System

    In this how-to video, the procedure for priming a pump-based MQL systems is outlined

    Working With The Redesigned Capillary Splicer

    Learn how to replace nozzles, shorten or replace co-axial hose or retrofit your system to use the improved capillary splicer design.

    Testimonial Video - Sigma Machine

    Tia Stevenson from Sigma Machine talks about the Quantum™ and Coolube® lubricants.

    MQL Minute #9

    In this MQL Minute, John and Larry discuss Unist MQL systems with multiple outputs.

    MQL Minute #7

    Unist multi-viscosity (MV) pumps are discussed in this MQL Minute.

    MQL Minute #6

    Learn how to best position your nozzles for milling operations in this MQL Minute.

    Setting Up Your Coolubricator System

    Learn how to do initial setup on a Coolubricator™ system.

    MQL Minute #4

    In this MQL Minute, John and Larry discuss the differences between Unist Coolubricator™ and Serv-O-Spray™ systems

    What is MQL?

    An introduction to Minimum Quantity Lubrication (MQL).

    MQL Minute #3

    John and Larry take a look at some dry chips in the Unist shop.

    MQL Minute #1

    This MQL Minute provides a general overview of Unist MQL (Minimum Quantity Lubrication) systems.

    Installing Coax Nozzles & Splicer Pins

    This video demonstrates how to install co-axial nozzles and splicer pins in a Unist MQL system.