Oil Centrifuge


Separator Spares & Equipment, LLC specializes in oil centrifuge equipment and spare parts for IOW Group Centrifuge Filters, Mann+Hummel Centrifugal Oil Cleaners, and Spinner II Oil Cleaning Centrifuges.

Oil Centrifuge | Centrifuge for Oil

As engine designs continue to evolve to meet future emission legislation, the contaminant loading placed on the engine’s lubricating oil will increase. A reliable and well-maintained engine that performs consistently and continuously can lead to a healthier bottom line for operators. Engine oil drain intervals depend on the engine-oil quality, its conditioning, the operating conditions, and the fuel used. Oil centrifuges (oil centrifuge filters) are known to be efficient in prolonging engine service life.

Removing dirt and contaminants from your engine’s lubrication system is the key to reducing engine wear and lowering your maintenance costs. Typical full-flow lube oil filters trap particles down to 30-40 microns in size. Removing the microscopic particles will reduce engine wear by half or better. To do this requires an oil centrifuge.

Do you need oil centrifuge spare parts or a replacement centrifuge?

We provide oil centrifuges that protect equipment, reduce maintenance, and minimize downtime – giving you one less thing to worry about. Let us help you keep your equipment’s maintenance schedule on track.

Oil Centrifuge Equipment & Spare Parts

IOW Group Centrifuge Filters

IOW-Group-Centrifuge-FiltersIOW Group’s centrifuge filters utilize bowl disc technology. Unlike conventional centrifugal spinners/separators, IOW Group centrifuge filtration separators use bowl discs to increase the separation efficiency, dramatically reducing the time that contaminants can stay in the oil. This provides more separation surface area. Bowl disc dramatically speeds up the precipitation of the solids from the liquid.

IOW Group centrifuge filters have dirt/sludge monitoring technology, which informs the operator when the separator needs servicing, saving valuable personnel time on otherwise unnecessary cleaning. The CentriClean remote monitor is Modbus or Bluetooth compatible and can be easily connected to your existing alarm systems.




Mann+Hummel Centrifugal Oil Cleaners
Mann+Hummel ESC600
Mann+Hummel FM025
Mann+Hummel FM050P-LCB
Mann+Hummel FM060

Mann+Hummel FM090
Mann+Hummel FM090-LCB
Mann+Hummel FM100

Mann+Hummel FM200
Mann+Hummel FM400
Mann+Hummel FM600

Spinner II Oil Cleaning Centrifuge
Spinner-II-Oil-Cleaning-Centrifuge-filter-partsThe Spinner II Products Division was the exclusive North American importer and distributor of oil cleaning centrifuges manufactured by Glacier Metal Company (now Mann Hummel). Eventually, Spinner II became a division of T.F. Hudgins, Inc. In 2016, T.F. Hudgins announced their merger with Allied Reliability, Inc. In 2023, TFH Reliability Group (parent company of Allied Reliability) sold to SOPUS Products.

The Spinner II centrifuge is a bypass centrifuge filtration device. It diverts a small side stream of oil for processing and returns clean oil to the crankcase. Powered only by engine oil pressure (or external pump), the oil centrifuge generates a centrifugal force more than 2,000 times greater than gravity. This force slings contaminants smaller than one micron out of your oil and packs them into a dense cake on the rotor wall. 

Spinner II Model 25
Spinner II Model 36 SE
Spinner II Model 60 SE
Spinner II Model 76 SE
Spinner II Model 96 SE
Spinner II Model 200 HD

Spinner II Model 560 HE
Spinner II Model 576 HE
Spinner II Model 596 HE
Spinner II Model 600 HD
Spinner II Model 936
Spinner II Model 960

Spinner II Model 976
Spinner II Model 996
Spinner II Model 3400
Spinner II Model 3600
Spinner II Model 6600 HS


Band Clamp Kits
Base Gasket
Body Assembly
Cover Assembly
Housing Assembly

Level Control Base (LCB)
O-Ring Kits
Pressurized Drain Systems (PDS)
Paper Inserts
Remote Mounting Base (RMB)

Rotor Assembly
Sensor Kits
Service Kits
Tool Kits
and more …

What is an oil centrifuge?

What-is-oil-centrifugeAn oil centrifuge separates contaminated particles from engine oil to reduce engine wear. An oil centrifuge uses centrifugal force to extract contaminants from the oil stream by spinning the oil at high speeds. The high centrifugal force (g-force) causes the contaminants to move to the outer edge of the oil centrifuge, while the clean oil travels toward the centrifuge center.

The lubricating oil will gradually be contaminated by internal or external factors. External contamination includes things like dust, dirt, and water. Internal contamination is caused by internal factors. This kind of oil contamination is caused by contaminants from engine operation or metal particles from surface degradation.  Soot is a byproduct of combustion. The EPA regulations continue to force the crankcase lubricant to serve as the “trash can” of the combustion process. Major engine manufacturers have identified soot and “black sludge” deposition as major causes of engine failure. 

This is why we recommend installing a bypass oil centrifuge filter. The oil centrifuge will capture and remove the solid contaminants from the oil. The wear rates are reduced, and the engine’s lifetime is extended.

There are many benefits to using an oil centrifuge. It can help to improve the quality of the engine oil, reduce engine downtime, and increase efficiency. The high speed of the bypass oil centrifuge filters is highly efficient for cleaning engine oil, waste motor oil, waste vegetable oil, hydraulic oil, and other industrial fluids.

Why is an oil centrifuge filter important in today's diesel engines?

Nearly all full-flow oil filters are designed to clean the lubricating oil that lubricates the engines’ moving parts. They are designed for a specific flow rate and pressure drop. However, there is a trade-off in performance to get the necessary flow rates and pressure drops required. As engine designs evolve to meet emission requirements, the contaminant loading placed on the engine’s lubricating oil will continue to increase.

Smaller micron particles pass through the filter media continually. These particles build up in the lubricating oil, causing unnecessary wear and damage to the engine, which in turn leads to lower engine performance and increased engine emissions. They also shorten the life of the lubricating oil as the level of contaminants increases.

With today’s emission controls getting tighter and tighter, it is increasingly important to remove these contaminants before they cause any damage to both the engine and the lubricating oil. Poor lube oil quality causes wear on the crankshaft, camshaft, turbocharger, and other essential parts. The centrifuge bypasses only 10% of the dirty oil, but by doing so, it significantly improves the quality of the lubricant, increasing the life and efficiency of the full-flow filter.

With fewer particles moving around the engine, the wear and tear of components are significantly reduced and has the bonus of reducing man hours due to unnecessary servicing.

What is a supplemental bypass filter?

Supplemental bypass filter typically falls into two (2) categories, centrifugal and absorptive. Centrifugal filters have proven helpful in extending the primary filter life, while absorptive filters reduce acids and contaminants in the oil.


Centrifugal Filters

Engine-mounted centrifugal oil filters remove particles below 1 micron from the oil, such as sludge, wear materials, dirt, soot, and carbonous materials. Centrifugal bypass filters can increase the number of operating hours before the primary filters become restricted.

If engine mount is not an option, you can set up the centrifugal oil filter as a kidney loop system utilizing a gear pump (or triple screw pump).

Centrifugal filtration is the process of using centrifugal force to separate solids from liquids. This method uses gravitational force (g-force) instead of filter media to affect the separation/filtration.

Absorptive Filters

Absorptive filters have absorbent media, such as cotton and cellulose fibers, which absorb acids and moisture and remove contaminants from the oil. Supplemental bypass absorptive filters increase oil capacity and may allow oil and filter change periods to be extended. However, the drain intervals cannot be extended arbitrarily without adequate monitoring systems.

Oil Centrifuge
Centrifuge Filtration

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