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home Best Technology / Precision Cleaning Systems & Parts Cleaners / Vapor Degreaser Equipment and Ultrasonic Vapor Degreasers

Vapor Degreaser Equipment and Ultrasonic Vapor Degreasers

  • System Description
  • Common Applications
  • Common Configurations

Vapor degreasers have been around for a long time, but that doesn’t mean they are all created equal. Best Technology offers the highest quality vapor degreasing machines in industry. The significant advancements in cleaning solvent fluids have brought increased solvent costs; therefore, solvent recapture and vapor degreasing distillation have never been more important. Ensuring the proper boiling heat capacity balanced with chilling capacity and freeboard is a must for today’s vapor degreasers. We are experienced in proper vapor degreaser equipment sizing and the latest chemistries used in them.

For Full Scale Production, We Offer Floor Standing Vapor Degreasers

MEK, trichlor and soon to be phased out nPb are great solvents of the past that worked well but can no longer be used due to environmental impact and employee exposure limits.

How Do Vapor Degreasers Work?

How Do Vapor Degreasers Work?

Video of Actual Degreaser in Operation

How Does a Vapor Degreaser Work? Actual Degreaser in Operation

For Smaller Applications, We Offer Bench Top  Style Vapor Degreasers

Inside the tank, liquid solvent is heated to a vapor which envelops the soiled part suspended in the vapor zone of the vapor degreaser. As the vaporized/boiled solvent condenses when the part at ambient temperature enters the vapor, dirt and contaminants are washed from the part and drained back into the liquid solvent solution in the boil sump of the vapor degreaser. Optionally, in some vapor cleaning machines, the parts may also be immersed into the solvent with ultrasonics in the rinse sump to “microscrub” the particulates off into the solvent.

Vapor Degreasing FAQs

How does a vapor degreaser work?

If you’ve ever been wearing glasses as you walked into an air-conditioned building on a hot summer day, you already have a good understanding of part of the Vapor Degreaser process works. (For those in colder northern climates, walking outside while wearing glasses on a cold winter day is an even better example)

So, how does a vapor degreaser work? A vapor degreaser has two tanks (sumps) of solvent inside. One vapor degreasing tank boils the solvent (boil sump) which creates a vapor or mist of the solvent. The second sump (ultrasonic sump) is heated but not to the boiling point and is used as the second cleaning stage.  The vapor degreaser also has bands of cooling coils inside just above the level of the sumps. These coils cause the vapor to return to a liquid state and fall back into the sump.  The effect is like small “clouds” of the solvent are formed between the top of the sumps and the cooling tubes.

As parts at room temperature are lowered through the cooling area into the vapor, the vapor from the boil sump condenses on the parts just like moisture in the air does on your glasses in the examples above.  This condensation contains the solvent that dissolves the oils on your parts, and the beading action creates droplets which run across the surfaces of the parts and fall back into the boil sump. The parts are then moved to the ultrasonic sump which contains heated but non-boiling solvent.  This allows the parts to be lowered into the sump so that any blind holes or internal features are also thoroughly exposed to the solvent.

Finally parts are raised into the cooling coil area to allow the solvent to quickly dry and and then raised through a second layer of freeboard coils near the very top of the vapor degreaser that insure complete drying and the recapture of the solvent from the parts.

The below video demonstrates the vapor degreasing process:

Is desiccant required in a vapor degreaser?

Desiccants are used to absorb the water found in humid conditions to reduce or eliminate condensation. It can also be added directly to liquids to absorb the water content from the fluid.  We are used to seeing the small white bags of desiccant found in packaging for everything from shoes to electronic equipment.  Most of this desiccant is silica – typically in gel form.  Other common substances used as desiccants are activated charcoal and calcium chloride.

The desiccant used in vapor degreasers is 3 Angstrom Molecular Sieve, small pellets of zeolite clay. Like all desiccants, the zeolite clay adsorbs water from the solvent, and may be reused by baking it dry. Desiccants are most often used in a vapor degreaser if the solvent contains an alcohol. This is often the case with solvents used for defluxing processes on soldered boards and leads. Water found in the separator extracts the alcohol from the solvent and in turn the water and alcohol are absorbed by the zeolite clay. If a degreaser is operated in a very humid environment, a desiccant may be needed to effectively remove the water from the solvent.

Automated Vapor Degreasers

Vapor Degreaser Demonstration with Automation and Basket

Industry Applications for Vapor Degreasing Equipment

  • Precision cleaning medical device parts where critical that no chemical residue is left on parts
  • Manufacturing processes requiring precision cleaning of true oils and particulates and quick drying
  • Semiconductor printed circuit board cleaning and flux removal
  • Aerospace parts cleaning for components required to conform to Military Specifications 1526B and BAC 5750
  • Minimizing solvent loss

Common Configurations

Our vapor degreasers come in a variety of configurations depending on customer application.  We can size a vapor degreaser to fit not only your parts, but also your cycle time and production requirements. With today’s solvents it is essential to size the vapor degreaser properly to ensure maximum solvent recapture through distillation cycle chilling coils.

Latest News & Products from Best Technology

Semi-Automated Inline Citric Passivation Solution with Data Tracking

For one medical device manufacturer, the design of a citric passivation solution faced two major challenges: The manufacturing process required performing a water-break test after cleaning parts, before proceeding to passivation. This meant that they could not use a fully automated passivation solution. The system had to have data tracking for quality control purposes. Semi-Automated […]

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  • Industrial Parts Washers
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    • Thermal Management / Heat Transfer with 3M Novec and Fluorinert Fluids
    • 3M Novec 72DA 73DE Solvent Vapor Degreaser For Medical Device Instruments
    • Solvent Phase-outs
      • AK225 HCFC-225 Phase Out and Replacement with 3M Novec HFE Engineered Fluids
      • Medical Device AK 225 Replacement with 3M Novec Engineered Fluid Solvent
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Best Technology Inc.
14040 23rd Avenue N.  
Minneapolis, MN 55447
612.392.2414   |   763.519.1460  
Sales@BestTechnologyInc.com


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  • Request More Information
  • Industrial Parts Washers
    ✛
    • Agitated Immersion Heated Parts Washers
    • Inline Conveyor Wash-Rinse-Dry Parts Washers
    • Immersion Inline Parts Washer
    • Spray Cabinet Parts Washers
      ✛
      • Front Load Spray Cabinet Parts Washer
      • Top Load Spray Cabinet Industrial Parts Washer
    • Vertical Door Pass Through Parts Washer
    • Rotary Drum Parts Washer
    • Powder Coat Prep Equipment
    • Phosphating Lines
    • Pipe Washing Equipment
  • Precision Cleaning Systems
    ✛
    • Applicable Articles
    • How clean is clean?
    • How Do Ultrasonic Cleaners Work?
    • Ultrasonic Benchtop Parts Cleaner
    • Benchtop Ultrasonic Parts Cleaning Multi-Tank Systems
    • Ultrasonic Cleaning Consoles
    • Automated Ultrasonic Parts Cleaning Equipment Wash-Rinse-Dry
    • Large Scale Automated Precision Aqueous Cleaning for Cellular Manufacturing
    • Agitated Immersion Ultrasonic Parts Washer
    • Machine Shop Parts Washer for Swiss and CNC Precision Parts
    • Immersible Ultrasonic Transducers
    • Vapor Degreasers
  • Passivation Equipment
    ✛
    • Applicable Articles
    • What is Passivation? How Does It Work?
    • Nitric vs. Citric Acid Passivation
    • CitriSurf – Citric Acid Passivation
    • Benchtop Ultrasonic Passivation Equipment
    • Ultrasonic Automated Passivation Equipment
    • Automated Ultrasonic Passivation System for Medical Device Parts
    • Passivation Wet Bench for Citric / Nitric Acid
    • Cleanroom Space Saving Automated Passivation System
    • Heated Polypropylene Acid Passivation and Rinse Tanks
    • Agitated Immersion Multi-Tank Passivation Systems
    • Automated Chemical Neutralization Cart
  • Electropolishing Equipment
    ✛
    • What is electropolishing? How does electropolishing work?
    • Electropolishing Cycle and Current Calculator
    • What is Dry Electropolishing? How does it work?
    • Passivation vs. Electropolishing
    • Table Top Electropolishing Equipment & Electropolishing Machines
    • Electropolishing Wet Benches
    • Large Scale Part Electropolishing Systems
    • Dry Electropolishing Machines
    • EP System – Open Top Wet Bench with Spray Rinse
  • Surface Finishing Systems
    ✛
    • Alodine Lines
      ✛
      • What is Alodine / Chem film / Chromate Conversion Coating?
      • Alodine Chem Film Tank Line
    • Mass Finishing Machines
      ✛
      • Centrifugal Barrel Finishing Machines
      • Spin Dryers / Chip Wringers
      • Vibratory Bowl Polishers
    • Titanium Anodizing Equipment
  • Wet Benches
    ✛
    • Citric / Nitric Passivation Wet Bench for Stainless Steel & Titanium
    • Electropolishing Equipment in a Wet Bench / Fume Hood
    • Fume Hoods
    • Wet Benches for Semiconductor & FM4910 Applications
    • Quick Dump Rinse Tank
  • Specialty & Custom Industrial Process Systems
    ✛
    • Contents Restoration
    • Vapor and Dryfilm PTFE Coating Systems
    • Heated Hot Air Parts Dryer
    • Solvent Recovery Equipment
  • Precision Cleaning Chemistries, Solvents & Fluids
    ✛
    • Why Use a Parts Cleaning Solvent?
    • 3M Novec Engineered Fluids, Fluorinert Liquids, Solvents & Chemicals
    • Solvent Cleaning with 3M Novec Engineered Fluids
    • Thermal Management / Heat Transfer with 3M Novec and Fluorinert Fluids
    • 3M Novec 72DA 73DE Solvent Vapor Degreaser For Medical Device Instruments
    • Solvent Phase-outs
      ✛
      • AK225 HCFC-225 Phase Out and Replacement with 3M Novec HFE Engineered Fluids
      • Medical Device AK 225 Replacement with 3M Novec Engineered Fluid Solvent
      • nPB Replacement
    • Aqueous Cleaning Chemistries
  • Case Studies
    ✛
    • Industrial Parts Washer Case Studies
    • Part Cleaning Case Studies
    • Passivation Systems Case Studies
    • Part Finishing Equipment Case Studies
    • Precision Cleaning Systems Case Studies
  • Equipment Financing
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