Centrifugal Oil Cleaners
What is a centrifugal oil cleaner?
Centrifugal oil cleaners provide superior bypass filtration that removes solid contaminants from the engine’s lubricating oil using centrifugal force (g-force). The centrifugal force enables efficient separation of solid particles, which are only a few microns in size. They can be easily fitted on the engine’s side cover near the front-end box. A centrifugal oil cleaner can extend lube oil change intervals. The centrifugal oil cleaner uses a paper insert to collect soot particles and other solid contaminants. The paper insert makes it easier to clean the centrifuge bowl (rotor) periodically.
During normal engine operations, the lubricating oil will gradually be contaminated by small abrasive particles from the combustion. Engines operating on heavy fuel oil (HFO) will generally increase the contamination due to the increased content of carbon residues and other contaminants. The moving parts in the engine are protected by the built-on duplex full-flow lubricating oil filter. The pressure drop across the replaceable paper filter cartridges is one parameter indicating the contamination level. The higher the dirt and soot content in the lube oil, the shorter the periods between filter cartridge replacement and cleaning.
How does a centrifugal oil cleaner work?
A centrifugal oil cleaner uses centrifugal force (g-force) to separate solid contaminants from lube oil. It is a pressure-driven centrifuge (also called a pressure-powered centrifuge). The contaminated oil is introduced into the centrifuge bowl through the oil inlet. The oil centrifuge bowl (rotor) rotates rapidly, creating a high g-force within the rotating centrifuge bowl. The centrifugal force causes solid contaminants suspended in the lube oil to move toward the centrifuge bowl wall. The resulting gravitational force draws any solid particles outwards while the purified oil passes back into your sump.
The oil centrifuge bowl wall is lined with a paper insert to collect soot, dirt, metal particles, sludge, and other solid contaminant particles. Due to the g-force, these solid contaminants stick to the paper insert (paper liner) while the cleaner oil flows toward the centrifuge bowl center. The clean oil is discharged from the oil centrifuge bowl (rotor) through bowl nozzles. The clean oil gravity drains back into the oil sump. Over time, the accumulated contaminants removed and captured from the lube oil must be periodically cleaned from the oil centrifuge bowl to maintain the separation efficiency.
MAN Energy Solutions | MAN Diesel & Turbo | MAN B&W Diesel
For engines exclusively operating on marine diesel oil (MDO) or marine gas oil (MGO), MAN Diesel & Turbo recommends installing a built-on centrifugal oil cleaner as an additional filter to the built-on full-flow depth filter. MAN’s engines running on heavy fuel oil (HFO) are delivered with centrifugal oil cleaners as a standard option. A centrifugal oil cleaner supplements the main oil filter and can be used as a lubricating oil system condition indicator.
All engines require effective and efficient lubricating oil cleaning. A one-system solution approach is not enough. Continuous lube oil cleaning during engine operation is mandatory. It is recommended to use a centrifugal oil cleaner and a built-on full-flow filter. This ensures reliable working conditions, reduces engine wear rates, and extends the engine’s life.
When selecting a centrifugal oil cleaner from MAN Energy Solutions, request the IOW Group centrifugal oil cleaner!
How does the IOW Group centrifugal oil cleaner differ from other centrifugal oil cleaner brands?
The simple answer to why the IOW Group centrifugal oil cleaners are the best on the market is better technology. They are the only pressure-driven (pressure-powered) centrifuges to utilize bowl disc technology, remote monitoring, a fully sealed centrifuge bowl, and a distributor impeller.
Features and Advantages
Bowl Disc Technology: Bowl disc technology increases centrifugal separation efficiency by providing more surface area for the separation of contaminants from the lube oil.
Fully Sealed Centrifuge Bowl: A fully sealed centrifuge bowl reduces the risk of cross-contamination between clean and dirty oil.
Remote Monitoring: The CentriClean remote monitor provides operators and systems valuable insight into the high speeds of the centrifuge bowl, cleaning, and service requirements.
Distributor Impeller: At the oil inlet into the centrifuge bowl, the distributor impeller eliminates back pressure by drawing in contaminated oil. Oil enters into the centrifuge bowl at the base of the unit, and once spinning, it is drawn into the centrifuge by the distributor impeller, reducing the risk of back pressure, causing cross-contamination, and aiding in increasing the centrifuge bowl (rotor) speeds.
Better Technology = Higher Centrifugal Force = Greater Separation Efficiency!
Case Studies: IOW Group vs. other MAN engine centrifugal oil cleaners
MAN 175D Engine
Are you looking to extend the time between engine overhauls and increase lube oil durability? By separating harmful wear metals and debris from the lube oil, the IOW Group lube oil centrifuge extends engine component life and oil service intervals, saving operating and maintenance costs.
The IOW Group centrifuges remove particles and filter out the other solid contaminants from engine lube oil. They will outperform the Mann Hummel lube oil centrifuges, which means better engine protection by removing more engine lube oil particles and soot.
Better Engine Protection!
STX MAN B&W 5L21/31 Engine
The lube oil analysis for this STX MAN 5L21/31 engine reported that the contamination was higher than normal, as indicated by the Index of Contamination (IC) %. This engine was supplied with Mann Hummel FM600 centrifugal oil cleaner. An oil sample was taken at 50 hours of lubricant life; with the Mann Hummel FM600 centrifuge, the Index of Contamination (IC) was 0.83%. At 1,365 hours of lubricant life, with the Mann Hummel FM600 centrifuge, the IC rose to 2.37%. Lube oil analysis recommended the use of a centrifuge if fitted; otherwise, reduce IC by partial change out of the oil.
Upgrading your centrifugal oil cleaner to an IOW Group centrifuge will help reduce the Index of Contamination (IC) %.
To improve their Index of Contamination (IC), this customer changed the lubricating oil and replaced their Mann Hummel FM600 centrifuge with IOW MP600 centrifugal oil cleaner. An oil sample was taken at 709 hours of lubricant life; with the IOW MP600 centrifuge, the IC was 2.08%. At 2,088 hours of lubricant life, with the IOW MP600 centrifuge oil filter, the IC was 2.1%.
MAN 6L21/31 Engine
The fuel grade for this MAN 6L21/31 engine is low-sulfur marine oil (LSMO). This vessel used Castrol TLX 404 engine lube oil. The MAN 6L21/31 engines are supplied from the factory with Mann Hummel FM600 (Glacier GF600) centrifuges. The Mann Hummel FM600 centrifuge collected 0.8 kgs (80 grams or 1.76 lbs) of sludge in 250 engine operating hours.
This customer needed better performance from their on-engine centrifuge. They wanted to remove more solid contaminants, wear particles, and soot particles from the lube oil. They replaced their Mann Hummel FM600 centrifuge with the IOW MP600 centrifuge oil filter. The IOW MP600 centrifuge was installed with the CentriClean SCU0002 remote monitor.
Results: In 200 engine operating hours, the IOW MP600 centrifuge collected 2.7 kgs (5.95 lbs) of sludge. This is a removal rate of 13.5 grams per hour.
The IOW Group centrifuge outperforms the Mann Humm centrifuge!
MAN 9L21/31 Engine
Aiming to reduce the life cycle costs of their MAN 9L21/31 auxiliary engines, this maritime customer upgraded their on-engine Mann Hummel FM600 oil centrifuge with the IOW MP600 centrifugal oil cleaner.
Results: The IOW MP600’s sludge accumulation was three (3) times higher than the existing Mann Hummel FM600 centrifuge. After 655 run hours, the IOW MP600 centrifuge removed 3.5 kg (7.7 lbs) of solids from the lube oil. Due to the continuous cleaning of the oil sump, the lube oil system cartridge filter life increased by up to 60%.
To learn more about the IOW MP600 centrifugal oil cleaner results on another MAN 9L21/31 engine, visit our Magnificent results with the newly designed Bypass Oil Filter blog.
Reduce Engine Wear!
Hyundai MAN L23/30H Engine
This maritime Hyundai MAN B&W L23/30H customer retrofitted their diesel engines with an IOW MP200 centrifuge with the CentriClean SCU0002 remote monitor. At an oil temperature of 76°C (168.8°F), the engine lube oil pressure is 5.6 bar (81 PSI). The IOW Group centrifuges are the only pressure-powered centrifuges that offer remote monitoring. The CentriClean SCU is designed to monitor the performance of the centrifugal oil cleaner. During its normal operation, it will continuously display the current RPM of the centrifuge filter and monitor run hours.
Results: After 150 run hours, the engine oil sludge collected on the outer bowl wall measured 13 mm (1/2″) thick. The CentriClean SCU0002 remote monitor displayed 5,244 RPMs.
Better Technology = Better Results = Increased Reliability
MAN 6L23/30 Engine
Looking for improved lubricating oil cleaning on their MAN 6L23/30 engines, this maritime customer installed the IOW MP400 centrifugal oil cleaners on all their engines. The CentriClean SCU 0002 remote monitor displayed 3,480 centrifuge RPMs. At the same engine oil pressure, the IOW Group centrifugal oil cleaners have higher centrifuge RPMs than any competitors. Higher centrifuge RPMs generate greater centrifuge force. The higher the centrifuge force, the greater the centrifuge separation efficiency.
Results: After 650 run hours on the IOW MP400 centrifugal oil cleaner, the centrifuge was opened and cleaned.
Higher Centrifuge RPMs = Greater Centrifuge Separation Efficiency
MAN 6L23/30H Engine
Over 12,000 MAN L23/30H GenSets are in active service. This maritime MAN 6L23/30H auxiliary engine customer replaced their factory-installed Mann Hummel FM200 centrifugal oil cleaner with the IOW MP200 centrifugal oil cleaner. The centrifugal oil cleaner is mounted directly on the engine base frame and supplements the main lube oil filter.
All IOW Group centrifugal oil cleaners are provided with a remote monitoring unit. At 4.0 bar (58 PSI) lube oil pressure, the CentriClean SCU0002 remote monitor displayed 5,802 centrifuge bowl RPMs.
Results: Oil analysis reports show an 83% decrease in soot particles. Visit our Mann Hummel Centrifuge blog page to learn more about the significant improvements to oil cleanliness levels made with the IOW Group centrifuges on this engine.
Better Technology = Better Results!
MAN 7L23/30 Engine
This 2009 MAN 7L23/30 HFO 380 fuel oil engine was supplied from the factory with the Mann Hummel FM200 centrifugal oil cleaner. This maritime customer was looking to improve the life cycle cost of their engines. They agreed to run a test comparing the soot and sludge removal on their two (2) auxiliary engines. On auxiliary engine #1, the existing Mann Hummel FM200 centrifuge was replaced with the IOW MP200 centrifuge. The IOW MP200 centrifugal oil cleaner comes standard with the CentriClean remote monitor. At 4 bar lube oil pressure, the CentriClean SCU-0002 displayed 3,456 centrifuge RPMs. On auxiliary engine #2, the factory installed a Mann Hummel FM200 centrifuge.
Results:
Auxiliary Engine #1: With the IOW MP200 centrifugal oil cleaner, after 251 run hours, the soot and sludge thickness of solid deposits measured ~6.3 mm thick (including paper insert).
Auxiliary Engine #2: With the Mann Hummel FM200 centrifugal oil cleaner, after 270 run hours, the soot and sludge thickness of solid deposits measured ~1.9 mm thick (including paper insert).
Conclusion: The IOW MP200 centrifugal oil cleaner removed more than three (3) times the amount of soot and sludge than the competition in less time! The IOW Group centrifugal oil cleaner provides superior engine protection.
When selecting a centrifugal oil cleaner from MAN Diesel, request the IOW Group centrifugal oil cleaner!
B&W 12V23H Engine
This 1972 Roll-On/Roll-Off (RoRo) ship has B&W 12V23H engines. This maritime customer is using SAE 30 Mobilgard 312 diesel engine oil. Looking for constant contamination control, they set up an IOW Group kidney loop system (sometimes called a partial-flow filter). A kidney loop system filters a small stream of lube oil, returning the filtered lube oil to the engine sump.
Each IOW Group kidney loop system consisted of an IOW MP600 centrifugal oil cleaner, an IOW Magnaline feed pump, and a control panel. The IOW Magnaline pump is magnetically sealed and is completely leak-free.
Results: Using the power of centrifugal force, the IOW Group centrifuge removed both large contaminants and ultra-fine particles. The IOW Group kidney loop system dramatically reduced internal engine and component wear.
A Smarter Kidney Loop System!
MAN B&W 12V25/30 Engine
The MAN B&W 12V25/30 maritime engine is a medium-speed, non-reversible four-stroke engine of trunk piston design with exhaust gas turbocharger, intercooler, and equipment permitting change-over from clean diesel fuel operation to diesel-gas fuel operation. Clean oil is the engine’s lifeblood. This customer is replacing their Spinner II 3600 oil cleaning centrifuges with IOW Group MP600 centrifuge oil filters.
At the same pump pressure, the IOW MP600 oil centrifuge spins faster than a Spinner II 3600 oil cleaning centrifuge. Higher centrifuge oil filter RPMs equals higher centrifugal force. Not all centrifuge oil filters are created equal. The oil cleaning centrifuges manufactured by IOW Group are the only disc stack centrifuge filters on the market.
Results: The First Engineer onboard the vessel remarked, “That thing is a freaking beast and has been outworking the old style by a long shot.”
Upgrade your oil cleaning centrifuge with the IOW Group Oil Cleaning Centrifuge!
MAN 6L27/38 Engine
This MAN Diesel 6L27/38 maritime engine was supplied with a Mann Hummel FM600 centrifugal oil cleaner. The customer wanted enhanced centrifuge performance and better engine protection, so they upgraded their centrifugal oil cleaner to an IOW Group MP600 centrifuge. At the same engine oil pressure, the IOW centrifuges spin faster than Mann Hummel centrifuges. Higher centrifugal RPMs generate greater centrifuge force (g-force), resulting in greater separation efficiencies.
The IOW MP600 centrifugal oil cleaners are designed for engines with a lubrication system capacity of 190 to 1550 liters (50-409 gallons).
Smarter Lube Oil Filtration!
MAN B&W 8L27/38 Engine
This DNV Class diving support vessel has a MAN B&W 8L27/38 marine auxiliary diesel engine installed with a Mann Hummel FM600 centrifugal oil cleaner. To improve the engine’s reliability, the customer replaced the Mann Hummel FM600 with an IOW MP600 centrifugal oil cleaner. The Mann Hummel FM600 and IOW MP600 utilize the exact inlet thread sizes and fixing holding thread sizes. With the CentriClean SCU0002, the customer could monitor the IOW MP600 centrifuge performance. At 5 bar (72.2 PSI) lube oil pressure, the CentriClean SCU0002 remote monitor displayed 4,500 centrifuge RPMs.
Results: After 500 engine run hours, the IOW MP600 oil cleaning centrifuge removed 1,776 grams at a 3.53 grams per hour removal rate. In Comparison, the Mann Hummel FM600 centrifugal oil cleaner removed 1,040 grams at a 2.08 grams per hour removal rate. The IOW Group MP600 centrifuge outperformed the Mann Hummel FM600 centrifuge by 41.44%
IOW Group Centrifugal Oil Cleaners provide enhanced performance and better engine protection!
MAN L28/32 Engine
If your MAN L28/32 engine has a Federal-Mogul FM600 oil conditioning system (formerly known as Glacier Filter Products), it is time to upgrade it to the IOW MP600 centrifuge oil filter. At the same engine oil pressures, the IOW Group oil centrifuges spin faster than Federal-Mogul FM600 (Mann Hummel FM600 centrifugal oil cleaners). The higher centrifuge bowl RPMs generate greater centrifugal force (g-force), which produces greater separation efficiency.
Get up to speed with the IOW Group Centrifugal Oil Cleaner!
Poor lube oil quality can cause increased wear on the crankshaft, camshaft, turbocharger, and other critical engine parts. Now is a perfect time to upgrade your Federal-Mogul FM600 oil centrifuges (Mann Hummel FM600 oil centrifuges) to the IOW Group MP600 centrifuge oil filter.
MAN B&W 6L28/32H Engine
This Roll-On/Roll-off (RoRo) vessel was built in 2005 by Mitsubishi Heavy Industries in Kobe, Japan. This vessel has three (3) MAN B&W 6L28/32H engines. The IOW MP600 oil cleaning centrifuge with CentriClean SCU-0002 remote monitor was mounted directly on the engine base frame.
Does your MAN B&W 6L28/32H engine current have a Glacier GF600 (Mann Hummel FM600) centrifuge? The IOW MP600 centrifuge is designed as a drop-in replacement for the Glacier GF600 centrifuges. Contact us to upgrade your centrifugal oil cleaner today!
Smarter Lube Oil Filtration with IOW Group Centrifugal Oil Cleaners!
MAN 8L48/60CR Engine
This vessel has two (2) MAN 8L48/60CR engines. To improve lube oil quality, this maritime customer retrofitted each MAN 8L48/60CR engine with an IOW MP400 twin centrifugal oil cleaner skid system. The IOW MP400 twin centrifuge skid system includes two (2) IOW MP400 centrifugal oil cleaners, one (1) IOW 032N2 Mechline feed pump, and a control panel. At ~5 bar (72.5 PSI) pump pressure, the CentriClean SCU-0002 remote monitors displayed 3,000-3,400 centrifuge RPMs.
Results: After 264 run hours, the IOW MP400 centrifugal oil cleaners removed 2,510 grams (5.53 lbs) of soot and sludge from the engine’s lube oil.
Improve Engine Uptime with Clean Oil!
Mann Hummel FM600 Centrifugal Oil Cleaners vs. IOW Group MP600 Centrifugal Oil Cleaner
When selecting a centrifugal oil cleaner from MAN Diesel, request the IOW Group centrifugal oil cleaner!
To learn more about IOW Group, visit IOWGroup.com.
