Oil In
Contaminated oil is supplied from the process sump at a controlled flow.
Products · Oil-Based Industrial Fluids
Centrifugal Oil Cleaner for Neat Oil and Industrial Lubricants
Separate suspended metal fines, process residue and sludge from oil without disposable filter media in the centrifugal separation stage.
Working with water-based coolant?Use the Coolant Centrifuge category guide for water-miscible cutting and grinding fluids.
IMAGE SLOT · 3:2Centrifugal oil cleaner seriesFile: centrifugal-oil-cleaner-series-hero.webp
Alt: Centrifugal oil cleaner series for neat industrial oil and lubricant filtration
Alt: Centrifugal oil cleaner series for neat industrial oil and lubricant filtration
Available VC configurations
Start with Flow, G-Force and Solids Capacity
These models provide the current selection range. The correct centrifugal oil cleaner is not chosen from flow alone: oil viscosity, operating temperature, contaminant density, solids loading and the required cleaning interval must be reviewed together.
01 · Why oil needs a separate selection route
Oil Contamination Behaves Differently from Water-Based Coolant
Neat oils and industrial lubricants carry contamination generated by forming, drawing, rolling, grinding and heat-treatment processes. Metal fines, phosphate coating residue, mill scale and carbonaceous sludge can remain suspended while the system is circulating, then settle in low-flow parts of the sump and piping.
As solids accumulate, the oil can become darker and more difficult to manage. Pumps, valves and nozzles may require more attention, settled sludge takes longer to remove, and contaminated oil can return repeatedly to the production zone. The practical cost is not only replacement oil. It also includes sump cleaning, waste handling, maintenance labour and production interruption.
Oil viscosity and temperature affect how easily solids migrate through the system and how the centrifuge should be sized. A specification that works for a low-viscosity drawing lubricant may not be suitable for a heavier forming oil. For that reason, this page separates oil applications from the water-based coolant centrifuge selection route.
IMAGE SLOT · 4:3Oil contamination and settled sludgeFile: industrial-oil-metal-fines-sludge.webp
Alt: Metal fines and sludge contamination in neat industrial oil
Alt: Metal fines and sludge contamination in neat industrial oil
02 · Separation process
Clean the Oil by Density Difference, Not Disposable Media
Centrifugal separation accelerates the density difference between the liquid and suspended solids. Oil enters the rotating bowl, where the heavier particles move outward and collect on the separation surface. The clarified liquid leaves the unit and returns to the process circuit.
High-G Separation
The rotating bowl drives denser metal fines and sludge away from the oil phase.
Clean Oil Out
Separated oil returns to the machine or central system for continued circulation.
Solids Out
Collected solids are discharged automatically on VC configurations or removed according to the selected bowl design.
The centrifuge does not make every used oil equivalent to new oil. It removes separable suspended solids; it does not reverse oxidation, restore depleted additives or remove dissolved contaminants. Fluid testing is required when those conditions may control oil life.
03 · Engineering inputs
Five Factors Control Oil-Cleaning Performance
Viscosity
Higher viscosity changes particle movement and required residence time. Supply the oil grade and operating viscosity when available.
Temperature
Temperature changes viscosity and equipment requirements. Give normal, start-up and maximum operating temperatures.
Contaminant
Identify metal type, coating residue, scale, carbon or mixed sludge. A sample is more useful than a generic description.
Solids Loading
Solids generated per shift determines discharge frequency and the value of larger solids capacity.
Required Flow
Flow must reflect the actual sump and circulation target, not only the pump nameplate rating.
When should you send an oil sample?
Send a representative sample when the fluid is unusually viscous, operates at elevated temperature, contains low-density residue, or has mixed contamination. A separation test helps confirm whether the solids form a stable discharge and whether the target flow is realistic.
IMAGE SLOT · 4:3Oil sample and separated solids testFile: centrifugal-oil-cleaner-sample-test.webp
Alt: Industrial oil sample and separated solids test for centrifuge sizing
Alt: Industrial oil sample and separated solids test for centrifuge sizing
04 · Model comparison
Compare the Current VC Range
Use this table for initial screening only. The final recommendation depends on an oil sample or verified fluid data, contamination type, temperature, sump volume and production schedule.
| Model | Rated Flow | G Force | Solids Capacity | Initial Selection Logic | Details |
|---|---|---|---|---|---|
| VC-600 | 60 L/min | 6,500 G | 2 L | Higher G-force and single-machine duty | View Model → |
| VC-800 | 80 L/min | 2,800 G | 3.2 L | Moderate flow with automatic discharge | View Model → |
| VC-1500 | 150 L/min | 1,860 G | 8 L | Central sump or multiple-machine circulation | View Model → |
| VC-2000 | 200 L/min | 1,700 G | 20 L | High flow with heavier solids loading | View Model → |
Rated flow is not a guarantee for every oil. Actual usable flow can change with viscosity, temperature and solids behaviour. For automatic solids handling, review the Automatic Sludge Discharge Centrifuge series.
05 · Oil application routes
Where a Centrifugal Oil Cleaner Is Commonly Evaluated
Cold Heading Oil
Remove phosphate coating residue and iron fines generated during cold forming. See the published cold heading oil filtration application guide.
Thread Rolling and Tapping Oil
Separate fine metal particles that recirculate through dies, tools and the oil sump. Application pages are scheduled; contact engineering for current sizing.
Wire Drawing Lubricant
Evaluate copper or aluminium fines, lubricant viscosity, production speed and operating temperature before selecting flow.
Rolling and Tube Drawing Oil
Review mill scale, metal fines, surface-quality requirements and central sump volume as one system.
Quench Oil
High-temperature service requires a dedicated equipment review. Do not select a standard configuration from flow alone.
Neat Grinding and Cutting Oil
Confirm particle type, viscosity, target cleanliness and whether abrasive or additive loss changes the process requirement.
06 · Verify results and limits
Measure the Process Before Claiming an Oil-Life Improvement
IMAGE SLOT · 4:3Separated solids from industrial oilFile: centrifugal-oil-cleaner-separated-sludge.webp
Alt: Metal fines and sludge separated from industrial oil by centrifugation
Alt: Metal fines and sludge separated from industrial oil by centrifugation
The first evidence is the separated solids stream and the condition of the circulating oil. Establish a baseline before installation: oil-change interval, sump-cleaning frequency, waste volume, maintenance time, tool or die issues and any disposable filtration media currently used.
After commissioning, compare the same measures over a representative production period. Results vary because different oils carry different additive packages, contaminants and thermal histories. We do not apply one universal payback or oil-life extension to every plant.
Does centrifugal cleaning remove dissolved contamination?
No. The process targets separable suspended solids. Dissolved material, oxidation products and depleted additives require separate oil analysis and treatment decisions.
Can one model handle every oil viscosity?
No. Viscosity and temperature influence separation and usable flow. Selection must use real fluid conditions.
Does the system require filter paper or bags?
The centrifugal separation stage does not require disposable paper or bag media. Auxiliary strainers or process-specific protection may still be used elsewhere in a complete system.
Can the centrifuge run continuously?
Automatic sludge discharge configurations are intended for repeated solids removal during production, but the operating cycle and maintenance plan must be commissioned for the application.
Get an oil-cleaning recommendation
Send the Oil Data Before You Select a Model
Tell us the oil type and grade, normal and maximum temperature, contaminant, sump volume, required circulation flow, solids generated per shift, machine count and available voltage. If the separation behaviour is uncertain, arrange a sample test before final sizing.
Oil type, grade and viscosityNormal and maximum temperatureContaminant and sample photosSump volume and required flowSolids volume per shift380V/50Hz, 400V/50Hz or 480V/60Hz