Autonomous tramp oil removal to below 0.5%
T.O.S.S. operates autonomously at a machine sump, parts washer, large reservoir, or coolant pit. It removes free and dispersed tramp oil and returns clarified coolant by gravity without interrupting the machine.
- <0.5%
- tramp oil held in the treated fluid
- 99%
- of 20-micron droplets separated, first pass
- 1–2%
- water in recovered oil · potential reclamation
- 2–50 gpm
- portable T1 through 50 GPM
More than surface oil removal
A floating skimmer draws the oil-rich surface layer through a bag filter and into a polypropylene coalescing pack. The media separates free and mechanically dispersed tramp oil before clarified coolant returns to the reservoir by gravity. Tank, media, skimmer, pump, and discharge are integrated on one skid.
- Autonomous operationThe system processes the oil-and-coolant mixture automatically with no machine interruption or continuous operator oversight, whether the machine is running or idle.
- Longer coolant service lifeContinuous separation removes free oils and solids that support bacteria and fungus, helping prevent odors and premature coolant failure.
- Lower-water-content recovered oilSeparated oil leaves at 1 to 2% water content, compared with 30% or more typical of skimmed oil. It may be suitable for reclamation or reuse, subject to composition, waste classification, and recipient requirements.
Skim, filter, coalesce, return
The skimmer removes the oily surface layer, the bag filter captures solids, and the coalescing media separates tramp oil before clarified coolant returns by gravity.


- 01
Skim the surface
A floating skimmer rides the level and pulls the oily top layer off the surface.
- 02
Filter the solids
The supply pump sends it through a bag filter (100µ supplied, 1 to 200µ available) to drop suspended solids.
- 03
Coalesce the oil
Droplets attract to the polypropylene plates, combine, and rise into an oil layer that overflows to the trough and gravity-drains to your drum.
- 04
Return clarified coolant by gravity
An adjustable weir maintains the oil layer while clarified coolant returns to the reservoir by gravity. Separated oil drains independently without an oil pump.
Compatibility requirement: chemically emulsified oil cannot be removed through coalescing, and emulsifying cleaners should not be used with the unit. When separation behavior is unclear, run the 30 to 60 minute bottle test or request a fluid-compatibility review.
Tramp-oil control for one or multiple reservoirs
Use a standard T.O.S.S. model for dedicated treatment at one sump, reservoir, pit, or parts washer. Use the portable T1 when multiple independent reservoirs can share one separator on a planned schedule. Continuous oil loading, reservoir volume, fluid chemistry, and required treatment rate determine the configuration.
- The series · floor-standing
MT2 through 50
Air or electric · 25 to 400 gal capacityFloor-standing units sized by loop rate. Carbon-steel divided tank, air or electric pump, V-bottom and bag-filter solids options, optional pre-filter, casters, and extra leg length. Standard and custom sizes.
- Flow
- 2 to 50 GPM across the range
- Capacity
- 25 to 400 gallons operating, by model
- Pump
- Air diaphragm or electric progressive cavity, per order
- Portable model
T.O.S.S. T1
21 × 14 × 25 in · 2 GPM · wheels between sumpsTo treat one reservoir at a time and move between locations, the T.O.S.S. T1 provides the same coalescing separation in a portable, skid-mounted configuration available in six builds.
See the T.O.S.S. T1 →
Sized by flow rate
Rated flow is the loop rate; final dimensions and connections are confirmed against shop drawings at quote.
| Model | Flow GPM | Flow GPH | Operating cap. | Clean discharge | Tramp oil discharge |
|---|---|---|---|---|---|
| MT2 | 2 | 120 | 25 gal | 1-1/2" NPT | 1-1/2" |
| MT3 | 3 | 180 | 30 gal | 1-1/2" NPT | 1-1/2" |
| 05 | 5 | 300 | 37 gal | 1-1/2" NPT | 1-1/2" |
| 10 | 10 | 600 | 75 gal | 2" NPT | 1-1/2" |
| 15 | 15 | 900 | 110 gal | 2" NPT | 1-1/2" |
| 25 | 25 | 1,500 | 290 gal | 3" NPT | 2" NPT |
| 50 | 50 | 3,000 | 400 gal | at quote | at quote |
- 180°F
- Max operating temp · 50–180°F ambient range
- 100µ bag
- Supplied; 1 to 200µ available to suit the solids load
- 132 ft²/ft³
- Coalescing surface per cubic foot of media, the area behind 99% first-pass separation at 20 microns
- 1-year
- Parts warranty, repair or replacement, F.O.B. factory
Options include a pre-filter assembly, V-bottom, casters, extra leg length, electric pump, vertical or ballast skimmer, and an ozone generator. Ozone replaces routine biocide dosing with automated bacteria control and odor neutralization. Routine ownership care centers on condition-based filter service and planned cleaning of the accessible separator components. Request the full data sheet →
Select the skimmer for the reservoir
The sump shape determines which skimmer fits.
- For shallow, tight sumps
Vertical floating skimmer
A stationary float that clamps to the side of the reservoir, skims the surface, and rides the level up and down. Built for shallow, hard-to-reach sumps; the reservoir must not drop below the float's lowest point.
MAX TRAVEL 4 IN - For deep open pits
Ballast floating skimmer
For deep open sumps with large level swings or turbulence, such as central filtration systems and coolant pits. Water-ballasted on site so the suction pipes sit right at the surface.
5 · 15 · 30 GPM RATINGS
Separation performance and operating results
- <0.5%
- Tramp oil held in the treated fluid, by volume.
- 99%
- Of 20-micron oil droplets separated on the first pass.
- up to 90%
- Reduction in waste volume sent to the hauler.
- up to 80%
- Reduction in new fluid purchases.
- up to 90%
- Reduction in waste
volume hauled - <0.5%
- Tramp oil residual,
by volume
Holding tramp oil below half of one percent helps extend coolant service life. Recovered oil with 1% to 2% water content may be suitable for reclamation or reuse, subject to composition, waste classification, and recipient requirements.
To confirm the fit for your own fluid, talk to an EdjeTech engineer.
Product and ownership questions
- 01
How does T.O.S.S. differ from surface skimming or top-suction filtration?
Top suction describes where fluid is collected, not how the oil is separated. Equipment that only collects or filters the oil-rich surface layer may leave mechanically dispersed droplets in the fluid. T.O.S.S. draws from the surface, filters suspended solids, and passes the fluid through coalescing media that separates free and mechanically dispersed tramp oil before clarified fluid returns to the reservoir. The media separates 99% of 20-micron oil droplets on the first pass.
- 02
Will it work with our fluid?
T.O.S.S. is compatible with water-based coolants, synthetics, and alkaline wash water carrying free, dispersed, or loosely emulsified oil. Chemically emulsified oil cannot be removed through coalescing. When separation behavior is unclear, request a fluid-compatibility review.
Request an application review → - 03
What routine maintenance is required?
T.O.S.S. operates autonomously without interrupting the machine. Routine ownership care is limited to condition-based bag-filter service and planned cleaning of accessible separator components. EdjeTech supplies replacement media, parts, and technical support by model.
- 04
Can fluid compatibility be confirmed before selection?
Yes. An EdjeTech engineer reviews the fluid chemistry, separation behavior, contamination, and operating conditions.
Request an application review → - 05
What support is available after purchase?
EdjeTech supplies replacement skimmers, coalescing media, bag filters, drawings, operating guidance, and troubleshooting support for installed systems.
Review support resources → - 06
Can we feed it with a pump we already own?
Only a progressive-cavity or air-diaphragm pump. Never a centrifugal pump: a centrifugal impeller shears tramp oil into fine droplets and disperses it back through the coolant, undoing the separation.
Skimmer floats, coalescer packs, bag filters
Replacement skimmers, coalescing media, and bag filters are available by model, together with manuals and technical support for installed systems.
Configure T.O.S.S. for the reservoir and fluid
Provide the reservoir count and dimensions, fluid, oil loading, required flow, temperature, skimmer access, and preferred pump type.
- Equipment quotation
Request a quote
Provide the reservoir count, volume, fluid, oil loading, and required treatment rate.
Request a quote → - Request
Spec sheet
The complete datasheet, with dimensions and connections.
Get the spec sheet → - Application review
Talk to an engineer
An EdjeTech engineer reviews fluid compatibility, separation behavior, operating conditions, and system configuration.
Request an application review → - Estimate savings and payback
Savings calculator
Estimate fluid savings, disposal reduction, and application-specific simple payback using current operating costs and quoted investment.
Estimate savings →




