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Oil filters

Filter
140517050 oil filter spin-on Caterpillar
MSRP: €8.16
Net price: €5.80
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
20.012.00 oil filter element
20.012.00 oil filter element
MSRP: €12.90
Net price: €10.40
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
20.012.02 oil filter element
20.012.02 oil filter element
MSRP: €11.00
Net price: €8.80
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
20.016.00 oil filter element
20.016.00 oil filter element
MSRP: €18.00
Net price: €14.40
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
20.020.00 oil filter element
20.020.00 oil filter element
MSRP: €22.90
Net price: €18.40
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
20267101 filter
MSRP: €72.10
Net price: €57.70
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 1-2 weeks
22.005.00 oil filter element
22.005.00 oil filter element
MSRP: €23.20
Net price: €18.60
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.009.00 oil filter element
22.009.00 oil filter element
MSRP: €19.80
Net price: €15.90
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.010.00 oil filter element
22.010.00 oil filter element
MSRP: €58.10
Net price: €46.50
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.028.00 oil filter element
22.028.00 oil filter element
MSRP: €53.80
Net price: €43.10
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.029.00 oil filter element
22.029.00 oil filter element
MSRP: €42.00
Net price: €33.60
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.032.00 oil filter element
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.033.00 oil filter element
22.033.00 oil filter element
MSRP: €11.70
Net price: €9.40
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.034.00 oil filter element
22.034.00 oil filter element
MSRP: €36.20
Net price: €29.00
Prices excl. VAT plus shipping costs
Stock: 5
Minimum order quantity: 1
Delivery time: 1-2 days
22.035.00 oil filter element
22.035.00 oil filter element
MSRP: €100.90
Net price: €80.80
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
22.047.00 oil filter element
22.047.00 oil filter element
MSRP: €57.50
Net price: €46.00
Prices excl. VAT plus shipping costs
Stock: 9
Minimum order quantity: 1
Delivery time: 1-2 days
23.102.00 oil filter spin-on
23.102.00 oil filter spin-on
MSRP: €8.50
Net price: €6.80
Prices excl. VAT plus shipping costs
Stock: 8
Minimum order quantity: 1
Delivery time: 1-2 days
23.102.02 oil filter spin-on
23.102.02 oil filter spin-on
MSRP: €9.90
Net price: €8.00
Prices excl. VAT plus shipping costs
Stock: 15
Minimum order quantity: 1
Delivery time: 1-2 days
23.103.00 oil filter spin-on
23.103.00 oil filter spin-on
MSRP: €3.40
Net price: €2.80
Prices excl. VAT plus shipping costs
Stock: 24
Minimum order quantity: 1
Delivery time: 1-2 days
23.104.00 oil filter spin-on
23.104.00 oil filter spin-on
MSRP: €27.20
Net price: €21.80
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
23.105.00 oil filter spin-on
23.105.00 oil filter spin-on
MSRP: €7.40
Net price: €6.00
Prices excl. VAT plus shipping costs
Stock: 33
Minimum order quantity: 1
Delivery time: 1-2 days
23.106.00 oil filter spin-on
23.106.00 oil filter spin-on
MSRP: €17.30
Net price: €13.90
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
23.106.01 oil filter spin-on
23.106.01 oil filter spin-on
MSRP: €12.40
Net price: €10.00
Prices excl. VAT plus shipping costs
Stock: 0
Minimum order quantity: 1
Delivery time: 3-4 weeks
23.107.01 oil filter spin-on
23.107.01 oil filter spin-on
MSRP: €14.60
Net price: €11.70
Prices excl. VAT plus shipping costs
Stock: 8
Minimum order quantity: 1
Delivery time: 1-2 days
verschiedene Oelfilter

Where are oil filters used? 

As the name suggests, you will find oil filters wherever oil is needed for the operation of engines, machines, plants, and other systems. For example, various different oils are used for lubrication, cooling, power transmission, corrosion protection, sealing, and flushing. They are usually circulated in a constant flow. Hydraulic oil circulation systems can be found in car and truck engines, industrial engines, gasoline engines, diesel engines, Wankel engines, combustion engines, gas engines, stationary engines, ship engines, multi-fuel engines, compressors, genset motors, transmissions, hydraulic systems, construction machinery, tractors, agricultural machinery, forestry machinery, power units, vacuum pumps, hydraulic transmissions, automatic transmissions, hydraulic systems, hydraulic aggregates, plastics machinery, machine tools, and presses. 

Purpose of the oil filter 

To protect the system against wear, stoppages, damage, and failure. 

Oil filter designs 

Main-flow oil filter, partial-flow oil filter, lifetime oil filter, suction filter, pressure line filter, return filter, return suction filter, in-line filter, police filter, centrifuge, free-jet centrifuge, high-pressure line filter, medium-pressure line filter, low-pressure line filter, spin-on, strainer. 

What shapes and sizes are available? 

Oil filters are available in many different designs. A distinction is made between screw-on cartridges / replaceable filters / spin-ons and filter inserts / filter elements. In the past, screw-on cartridges were mostly found in passenger cars and smaller industrial engines. However, many manufacturers are now in the process of switching to filter elements for environmental reasons. Their goal is to use metal-free oil filter elements. 

In the case of hydraulic filters, the filter inserts usually have metal end caps due to the need for higher differential pressures. The filter housings in which the filter elements are inserted are typically made of aluminum, metal or plastic. The rationale behind these designs is to minimize the resulting waste and ensure that it is easily recyclable. In the field of hydraulics, spin-on filters are only used in the low-pressure range. At higher pressures, filter elements that can withstand high differential pressures are used. They are typically inserted into filter housings. 

Spin-on oil filters 

The most commonly used filter type is the spin-on oil filter. Spin-on filters are screwed directly onto the engine/gearbox/plant or the filter flange by means of a double nipple. Their attachment method is extremely simple. Spin-on oil filters are produced by the millions every day, so production costs are relatively low. 

In terms of the filter fineness, spin-on oil filters offer a wide range of options in the form of different filter media, which mainly consist of cellulose and synthetic media. Spin-on oil filters are often equipped with a bypass valve that opens at a defined pressure and allows the oil to flow, unfiltered, past the filter bellows. This prevents the spin-on filter from bursting or leaking if the dynamic pressure upstream of the filter medium becomes too high. This can occur if the oil is too cold and thus too thick or viscous, or if the filter medium becomes clogged with an excessive amount of dirt. 

A diaphragm prevents the oil from flowing back out of the filter’s pre-chamber when the system is at a standstill. This ensures that there is sufficient oil pressure when the system is restarted. If the spin-on filter is mounted vertically, an optional additional diaphragm at the oil outlet prevents the oil in the filter from escaping when the filter is unscrewed. The seal is created by a sealing ring in the filter flange. Spin-ons are usually fastened by hand only and removed with the aid of a release wrench or filter strip. 

Oil filter inserts 

Most filter inserts or filter elements have a cylindrical design with end discs at the top and bottom and the filter bellows glued between them. The oil flows through the bellows from the inside to the outside, or also from the outside to the inside. To maximize the filtration surface inside the filter, the bellows is usually folded (pleated). 

A bypass valve can also prevent overpressure in the system or filter housing. The filter element is placed inside a filter housing, which is then closed with a lid. Cellulose, glass fiber, and wire-mesh filter materials are common. These are often laid over each other in several layers and then folded. This arrangement differs in many filter bellows, even though they often appear identical from the outside. 

Main-flow oil filtration 

Motor vehicles, industrial engines, and compressors have a main-flow oil filter that can reliably remove harmful particles. If properly designed, its performance is sufficient to protect the equipment and consumers from excessive contamination between service intervals. 

An oil pump sucks or pumps the oil from a collecting tank or the oil pan to the consumers or the lubrication and cooling points. An oil cooler may also be used to cool the heated oil. The top priority is to ensure that the system is supplied with sufficient oil. A bypass valve ensures that oil will continue to flow to its destination even if it cannot be pumped through the filter medium. Since an open bypass valve – and thus a flow of unfiltered oil – cannot usually be monitored, it is important to replace the oil filter at the specified maintenance intervals. 

Partial-flow oil filtration 

The majority of the tiniest dirt particles are not caught by the main-flow oil filter. However, in the long run, they can cause the same kind of wear as the larger particles that are retained in the main-flow filter. A dreaded consequence of this is “bore polishing”, whereby the smallest particles act like a polishing paste and make the cylinder bore surfaces and bearing points so smooth that an oil film can no longer adhere to them. To prevent this, these ultra-fine particles can be removed from the oil circuit by an additional partial-flow oil filter. This involves permanently diverting a small amount of oil from the main flow and pumping it through a second, finer filter. 

This partial-flow oil filter also requires regular maintenance and must be replaced after a specified number of miles or operating hours. Another very effective way to filter oil in the partial flow is to use a centrifuge, in which a rotor is accelerated to speeds as high as 10,000 revolutions per minute. Due to the resulting centrifugal forces, the finest particles are forced out of the oil and collected in the so-called “filter cake” on the rotor wall. The filter cake can then be removed from the centrifuge. These centrifuges are usually driven by the oil pressure alone and do not require a separate drive. 

Hydraulic systems 

Within hydraulic systems you will typically find suction filters, pressure line filters, return filters, and breather filters as well as strainers. Pressure line filters are generally subjected to high pressures and are therefore installed inside pressure-resistant housings. The oil filter element in the housing is replaceable and is usually designed to withstand high differential pressures, depending on the application. 

Oil filter maintenance 

Maintenance instructions for oil filters can usually be found in the operating and maintenance manuals provided by the respective machine or plant manufacturers. When the specified maintenance time is reached, usually after a certain number of miles or operating hours (as specified by the manufacturer), the filter should be serviced. The recommended maintenance intervals are typically based on an assumed dirt load and the available filter surface. However, maintenance intervals calculated in this way are only recommended values. 

In the case of more challenging operating conditions, shorter maintenance intervals may be necessary. At least one filter change per year is usually recommended. One reason for this is that the adhesive joints in the filter may perish over time. In the vast majority of cases, the filter element or spin-on is simply replaced with a new filter. In some cases, strainers can also be washed out or cleaned and then reused. The filter should be in a depressurized state for this purpose. Engines or plants that cannot be shut down usually have a parallel filter through which the oil can flow during maintenance of the dirty filter. Regular maintenance of the filter is not a necessary evil, but rather essential to ensure long-term operational reliability of the machines and systems. 

As already mentioned, it is usually not possible to determine the precise technical properties of a particular filter from the outside. Therefore, you are strongly advised to only use approved filters when performing maintenance work. In most cases, any problems with the filter will not be detected immediately – and often only after many miles or hours of operation. By this time, the resulting damage and subsequent costs usually far exceed the price of a suitable filter. Many manufacturers also offer maintenance or service packages. These contain all the filters – in the right quality – needed to complete the filter change.