What is a Micro-Emulsion Coolant?

Micro-Emulsion Coolants

Micro-Emulsion CoolantsWhat is a Micro-Emulsion?

Micro-emulsions are clear, thermodynamically stable, isotropic mixtures of oil, water and surfacant (which lowers the surface tension between two liquids or a liquid and a solid). Most of the particles in the micro-emulsion are between 10 and 50 nanometers in diameter.

The term was coined in 1943 by two Cambridge University chemistry professors. The microemulsion systems are also called solubilized oil, transparent emulsions or micellar solutions.

Micro-emulsions are usually the result of:

  • Oil dispursed in water (globular)
  • Water dispursed in oil (globular)
  • Biocontinuous (interconnected)

These Micro-emulsion mixtures may also contain cosurfactants (which make surfacants more effective). Cosurfactants increase the oil solubility of microemulsions. Cosurfactants can also change the temperature range or the salinity range of microemulsion formations, to improve their use in certain applications.

Micro-emulsion Coolants

Micro-emulsions can provide the best of both worlds (synthetic coolant and soluble oil) as a coolant. They provide all the cooling properties of a synthetic plus the lubrication properties of a soluble oil. This makes them the best choice for medium to heavy duty machining operations on stainless steel.

Benefits of Micro-emulsion Coolants

In particular, micro-emulsion coolants provide:

  • Excellent cooling at the tool-workpiece interface
  • Can be used for multi-metal operations including carbon steels, yellow metal, aluminum and stainless steel
  • Can be formulated with Extreme Pressure lubrication additives
  • Superior hard water stability
  • Improved bio-resistance
  • Improved metal removal properties and chip carry out
  • Excellent tramp oil rejection
  • Able to be formulated for light, medium or heavy duty operations
  • Easier to remove soils from work piece after operation
  • Lower surface tension allows for better wetting and even films during machining

Our Micro-emulsion Coolant Products

Harry Miller Corp offers micro-emulsion coolants in the Kleerkut products series. Kleerkut 2900, Kleerkut 4960, most of the Kleerkut 4900* series, and the Kleerkut 5900 series are all micro-emulsion coolants.

If you would like to learn more about the micro-emulsion coolants and other products we offer, contact us today.

(*the exceptions being Kleerkut 4900-TLF and Kleerkut 4900–LFS)

New Heavy Duty Cutting Oil – Medium and Long-Chain Chlorinated Paraffin Free

Medium and Long-Chain Chlorinated and Paraffin-free Cutting Oil

No Medium and Long-Chain Chlorinated Paraffins in this Cutting OilFree of Medium or Long-Chain Chlorinated Paraffins

Are you trying to avoid long-chain chlorinated paraffins? PE-40-VLC is the newest addition to the Harry Miller line of heavy duty cutting oils. This newest offering is a lower viscosity version of PE-50 which is free of medium or long-chain chlorinated paraffins, which are currently under scrutiny by the EPA. PE-40-VLC has excellent lubrication properties by utilizing the newest synthetic additives; making it the ideal choice for forming operations or cutting heavy gauge carbon steel, stainless steel and alloy steel.

Outstanding Qualities

  • Excellent lubrication to prevent marring and scratching
  • Anti-wear protection to dies for long tool life
  • Good for multi-stage operations
  • Non-staining to steel and yellow metals
  • Good corrosion protection
  • Easily removed with alkaline cleaners
  • Contains no short, medium or long-chain chlorinated paraffins
  • Pleasant odor

Customer field trials are showing great success! If you would like to try this new product in your operation to avoid long and medium-chain chlorinated paraffins, contact us today!

Aerotap®15 – Low Viscosity Cutting Oil

Aerotap®15 is a low-viscosity petroleum-based cutting oil specially compounded for medium to heavy duty applications. Aerotap® 15 is fortified with chlorinated extreme pressure additives to provide long tool life and good finishes The high degree of chlorination provides Aerotap® 15 with the extreme pressure lubrication necessary for use on stainless steel, titanium and other alloys where high temperatures are encountered.

Kleerkut® 4900-EPL – Heavy Duty Semi-Synthetic Coolant

Kleerkut® 4900-EPL is a high oil semi-synthetic with chlorinated extreme pressure additives for machining the toughest alloys.

Kleerkut® 4900-HD – Heavy Duty Semi-Synthetic Coolant

Kleerkut® 4900-HD has an enhanced, upweighted synthetic lubricant package, compared to Kleerkut 4900, for heavier duty applications. This product is chlorine-free.

Kleerkut® 4900-HP – Medium Duty Coolant

Kleerkut® 4900-HP is a lower oil version of 4900 designed for light-to-medium duty applications. This product has more reserve alkalinity to enhance pH stability and provide superior emulsion stability.

Kleerkut® 4960 – Semi-Synthetic Coolant for Aluminum

Kleerkut® 4960 performs a wide variety of machining and grinding operations on both ferrous and non-ferrous metals and offers significantly upgraded lubrication properties for aluminum machining operations, as well as better heavy duty lubrication on steel.

Kleerkut® 4960 is a bio-resistant semi-synthetic coolant, free of substances subject to the reporting requirements of SARA Title III. It provides superior rust protection when used in sumps which typically encounter large amounts of contaminants, and is ideal for use in central systems. It is low foaming, easy to clean using filtration or centrifuge, and long lasting.

Kleerkut® 2900 – Low Oil Semi-Synthetic Coolant

Kleerkut® 2900 is a lower oil, heavy duty semi-synthetic lubricant containing extreme pressure additives. It is free of substances subject to reporting requirements of SARA Title III, Section 313. This product provides improved lubricity and excellent micro-finishes. It is low foaming, rejects tramp oils and is suitable for high pressure recirculation.

Aerogrind® 747 – Cutting Oil

Aerogrind® 747 is a petroleum based cutting oil specially compounded for medium to heavy duty applications. Aerogrind® 747 is fortified with chlorinated and sulfurized extreme pressure additives to provide long tool life and good finishes. The high viscosity maintains film strength even at high temperatures. Aerogrind 747 is recommended for use on stainless steel, titanium and other hard alloys where high temperature stability and maximum extreme pressure lubrication are necessary.

Purgitol® S-8 – Heavy-Duty Spray Cleaner

Purgitol® S-8 is a concentrated liquid cleaner for rolling oil and other mill soil removal from steel strip by application through spray headers at the last stand on a four or five stand cold reducing tandem mill. Purgitol® S-8 may also be used as a water soluble straightener lubricant for wire or rods on roll straightener equipment. It has excellent corrosion protection, boundary lubrication and is low foaming (for recirculating sprays).