
Ultra Fine Filters For Oil And Fuel
Ultra fine filters from micfil have a far better filter performance and dirt holding capacity than conventional standard oil or diesel filters. They filter the smallest particles (0.5 µm) and absorb water from oil, diesel and biodiesel.
micfil’s ultra fine filters enable a filtration performance of up to 0.5µm even at high flow rates and the removal of 98% of all bacteria in diesel (diesel fungus) – in a single pass.
Many customers are already convinced by the micfil ultra fine filters because they benefit from our service and save money.
Our filters are now used worldwide in a wide variety of industries – for filtering engine oil and transmission oil, turbine oil, transformer oil, hydraulic oil or fuel and (bio-)diesel and other such as cooling water.
The Following Models Are Currently On The Market:
TYPE | FLOW RATE | HOUSING | CERTIFIED |
---|---|---|---|
AL50 MINI | 50 l/h | Aluminium | RINA |
AL100 | (diesel) Flow rate 80 ltr./h (benzine) Flow rate 120 ltr./h | Aluminium | |
AL 150 | 300 l/h | Aluminium | RINA |
ST150 | 300 l/h | Steel | Bureau Veritas |
AL300 | 600 l/h | Aluminium | RINA |
ST300 | 600 l/h | Steel | Bureau Veritas |
AL600 | 1200 l/h | Aluminium | RINA |
ST600 | 1200 l/h | Steel | Bureau Veritas |
AL50 MINI
Ultra Fine Filter – Especially For Small Engines
The micfil AL 50 MINI 0.5 µm filter has been specially designed for small engines, small generators, small trucks, taxi fleets, outboard engines, etc.
The low price and easy maintenance, together with the savings achieved, make it an attractive new addition to our product range.
The micfil AL50 MINI has a maximum flow rate of 50l/h for diesel. 70l/h for petrol and 10l volume for engine oil.
In the engine oil range, it is used for bypass filtration.
- filtration up to 0.5 µm
- water absorbing
- high flow
- long service life
- space-saving
- easy insert change
- for pressure and vacuum
- for up to 10 bar pressure
- eliminated ca. 98 % of all bacteria
Housing material -RINA certified -Bureau Veritas certified | Aluminium Almg 4.5 (AL) V4A stainless steel 306 (ST) |
Height (mm) | 115 |
Diameter (mm) -at lid -at bowl | 95 80,8 |
Weight (g) -Housing: -Filter element (FE50) | 757 57 |
Volume (l) | 0,45 |
Inlet/ Outlet connections (”) | 1/4″ |
Max. pressure (bar) | 10 |
Temperature (°C) | -20 … 120 |
Flow rate: -Diesel (l/h) -Benzin (l/h) | 50 70 |
Diff. pressure in fuel flow Diesel (bar) | 0,00 – 0,01 |
Tank capacity (l): -Engine oil -Hydraulic oil (ISO VG 46) -Gearbox oil | ≤ 10 ≤ 30 ≤ 10 |
Element change interval (h) -fuel -engine oil -Hydraulic oil -Gearbox oil -Bio diesel | 100 – 150 (≈ 20.000 km) 100 – 150 (≈ 20.000 km) 150 150 80 |
Water absorbend | Yes |
Particle size (µm, ISO 4406) | ≤ 0,5 |

AL/ST 100
Ultra Fine Filter – Ideal For All Types Of Small Trucks, Construction Machinery, Generators And Boats.
The micfil Ultra Fine Filter cleans all types of oil and diesel down to 0.5 μ and blocks water from passing through the filter.
The micfil AL 100 is built with high quality industrial components. The connections and pipes are hydraulic standard parts.
The micfil AL 100 is built to polish, recondition and stabilize all oil types and diesel fuels to a super clean, clear and bright condition. The filter efficiently removes water as well as sludge and any kind of sediments.
The filter is easy to maintain and operate and a low-cost solution for oil and fuel cleaning.
- filtration up to 0.5 µm
- Moisture absorbent
- high flow rate
- Long filter life
- Easy to change inserts
- Space saving
- For use in pressure and negative pressure filtration
- Up to 10 bar pressure
Particle size¹ (ISO 4406) ≤ 0.5 micron
Housing material | Aluminium Almg 4.5 (AL) |
Height – over all | 230 mm |
Diameter -at lid -at bowl | 95 mm 80.8 mm |
Weight Weight – insert | 850 g 114 g |
Volume | 0,8 ltr |
Inlet/ Outlet connections | 1/4″ id |
Max. pressure * | -0,5 10 bar |
Temperature range (°C) | -20 / 100 C |
Flow rate: -Diesel (l/h) | 300 |
Diff. pressure in fuel flow diesel (bar) Flow rate – fuel ² (Diesel) Flow rate – fuel ² (benzine) | 0,00 – 0,02 at full flow Flow rate 80 ltr./h Flow rate 120 ltr./h |
Tank capacity: -Engine oil ² -Hydraulic oil ² (ISO VG 46) -Gearbox oil ² | up to 25 ltr up to 15 ltr |
Insert change interval (h) -Fuel -Engine oil -Hydraulic oil -Gearbox oil -Bio diesel | 100-150 hours approx. 30,000 km 100-150 hours approx. 30,000 km 300 hours 300 hours 100 hours |
Water absorbend | Yes |
¹ The patented micfil ultra fine filter insert consists of a tear-resistant fiber mesh with woven in cellulose fibers of the highest quality. The filtration performance is down to 0.5μm (microns). The micfil ultra fine filter inserts possess a very high contamination absorption capacity, long life span, lower differential pressure and it is water absorbent. ² Two or more filters can be installed in line for increased flow rate/tank capacity * Filters for 20 bar upon request |

AL/ST 150
Ultra Fine Filter – Ideal For All Types Of Trucks, Construction Machinery, Generators And Boats.
The micfil AL/ST 150 0.5 µm is the ideal filter for all types of trucks, busses, construction machinery, generators, and boats.
With a diesel/petrol flow rate of up to 300l/h and an engine oil volume of max. 50l in bypass installations, it is also suitable for use under extreme conditions.
The micfil Al(Aluminium)/ST(Stainless Steel) 150 oil and fuel filter prevents abrasion in the machine for bearings, sleeves, and all moving oil-lubricated parts in the engine as well as in the diesel area for injection pumps and injectors. The use of our micfil ultra-fine filter prevents deposits in the combustion chamber, stops abrasion(in piston rings, injectors), and thus achieves a much improved and cleaner combustion.
The special features of the filter include a low price and easy maintenance. The installation leads to a much longer life expectancy of your engines and machines.
The filter can be used as a bypass filter for engine oil, in hydraulic, turbine, gear oil as well as for biofuels and bio-oil (see datasheet).
The micfil AL/ST 150 is suitable for both commercial and private use.
- filtration up to 0.5 µm
- water absorbing
- high flow
- long service life
- space-saving
- easy insert change
- for pressure and vacuum
- for up to 10 bar pressure
- eliminated cs. 98 % of all bacteria
Housing material -RINA certified -Bureau Veritas certified | Aluminium Almg 4.5 (AL) V4A stainless steel 306 (ST) |
Height (mm) | 170 |
Diameter (mm) -at lid -at bowl | 170 130 |
Weight (g) -AL -ST -Filter element (FE 150) | 2.370 4.605 220 |
Volume (l) | 2,0 |
Inlet/ Outlet connections (”) | 1/2 |
Max. pressure (bar) | 10 |
Temperature (°C) | -20 … 120 |
Flow rate: -Diesel (l/h) | 300 |
Diff. pressure in fuel flow diesel (bar) | 0,00 – 0,01 |
Tank volume (l): -Engine oil -Hydraulic oil (ISO VG 46) -Gearbox oil | ≤ 50 ≤ 250 ≤ 125 |
Element change interval (h) -Fuel -Engine oil -Hydraulic oil -Gearbox oil -Bio diesel | 400 (≈ 30.000 km) max. 400 (≈ 30.000 km) 400 – 800 400 250 – 300 |
Water absorbend | Yes |
Particle size (µm, ISO 4406) | ≤ 0,5 |

AL/ST 300
Ultra Fine Filter – With A Dıesel/Petrol Flow Rate Of Up To 600 L/H
The micfil AL/ST 300 0.5 µm is the ideal filter for all types of trucks, construction machinery, generators, and boats.
With a diesel/petrol flow rate of up to 600l/h and an engine oil volume of max. 100l in bypass installations, it is also suitable for use under extreme conditions.
The micfil Al(Aluminium)/ST(Stainless Steel) 300 oil and fuel filter prevents abrasion in the machine for bearings, sleeves, and all moving oil-lubricated parts in the engine as well as in the diesel area for injection pumps and injectors. The use of our micfil ultra-fine filter prevents deposits in the combustion chamber, stops abrasion(in piston rings, injectors), and thus achieves a much improved and cleaner combustion.
The special features of the filter include a low price and easy maintenance. The installation leads to a much longer life expectancy of your engines and machines.
The filter can be used as a bypass filter for engine oil, in hydraulic, turbine, gear oil as well as for biofuels and bio-oil (see datasheet).
The micfil AL/ST 300 is suitable for both commercial and private use.
- fitration up to 0.5 µm
- water absorbing
- high flow
- long service life
- space-saving
- easy insert change
- for pressure and vacuum
- for up to 10 bar pressure
- eliminated cs. 98 % of all bacteria
Housing material -RINA certified -Bureau Veritas certified | Aluminium Almg 4.5 (AL) V4A stainless steel 306 (ST) |
Height (mm) | 340 |
Diameter (mm) -at lid -at bowl | 170 130 |
Weight (g) -AL -ST -Filter element (FE 150) | 2.690 6.200 520 |
Volume (l) | 4,0 |
Inlet/ Outlet Connections (”) | 1/2 |
Max. pressure (bar) | 10 |
Temperature (°C) | -20 … 120 |
Flow rate -Diesel (l/h) | 600 |
Diff. pressure in fuel flow diesel (bar) | 0,00 – 0,01 |
Tank capacity (l): -Engine oil -Hydraulic oil (ISO VG 46) -Gearbox oil | ≤ 100 ≤ 500 ≤ 250 |
Element change interval (h) -Diesel -Engine oil -Hydraulic oil -Gearbox oil -Bio diesel | 800 – 1.000 (≈ 60.000 km) 600 – max. 800 (≈ 60.000 km) 800 – 1.500 800 300 – 800 |
Water absorbend | Yes |
Particle size (µm, ISO 4406) | ≤ 0,5 |

AL/ST 600
Ultra Fine Filter – With A Diesel/Petrol Flow Rate Of Up To 1200 L/H
The micfil AL/ST 600 0.5 µm is the ideal filter for all types of trucks, construction machinery, generators and boats.
With a diesel/petrol flow rate of up to 1200l/h and an engine oil volume of max. 200l in bypass installations, it is also suitable for use under extreme conditions.
The micfil AL/ST 600 oil and fuel filter prevents abrasion in bearing shells, ball bearings and all moving oil-lubricated parts in the engine as well as in the diesel exposed parts within injection pumps and single tip nozzles. The application prevents deposits in the combustion chamber and thus achieves a much improved and cleaner combustion.
The special features of the filter include a low price and easy maintenance. The installation leads to a much longer life expectancy of your engines and machines.
The filter can even be used in hydraulic and operating systems as well as for biofuels (see data sheet).
The micfil AL/ST 600 is suitable for both commercial and private use.
- filtration up to 0.5 µm
- water absorbing
- high flow
- long service life
- space-saving
- easy insert change
- for pressure and vacuum
- for up to 10 bar pressure
- eliminated cs. 98 % of all bacteria
Housing material -RINA certified -Bureau Veritas certified | Aluminium Almg 4.5 (AL) V4A stainless steel 306 (ST) |
Height (mm) | 640 |
Diameter (mm) -at lid -at bowl | 170 130 |
Weight (g) -AL -ST -Filter element (FE 150) | 4.240 9.820 1.040 |
Volume (l) | 8,0 |
Inlet/ Outlet connection (”) | 1/2 |
Max. pressure (bar) | 10 |
Temperature (°C) | -20 … 120 |
Flow rate: -Diesel (l/h) | 1.200 |
Diff. pressure in fuel flow diesel (bar) | 0,00 – 0,01 |
Tank capacity (l): -Engine oil -Hydraulic oil (ISO VG 46) -Gearbox oil | ≤ 200 ≤ 1.000 ≤ 500 |
Element change intervall (h) -Fuel -Engine oil -Hydraulic oil -Gearbox oil -Bio diesel | ≤ 1.500 (≈ 90.000 km) max. 800 (≈ 60.000 km) 1.000 – 2.000 1.500 800 – 1.000 |
Water absorbend | Yes |
Particle size (µm, ISO 4406) | ≤ 0,5 |

FILTER CARTRIDGES
Ultra Fine Filter Inserts – High Dirt/Water Absorption, Long Service Life.
The new improved micfil ultra-fine filter insert – consisting of a special tear-resistant fibre net with interwoven cellulose fibres – enables a filter performance of up to 0.5 and the removal of 98% of all bacteria (diesel fungus) – even at high flow rates – in a single pass.
The unique design of the filter enables trouble-free and blockage-free operation.
The micfil ultra fine filter insert has a very large dirt holding capacity, long service life, low differential pressure and it removes moisture from oils (hydraulic, engine, turbine, transformer, compressor and transmission oil) as well as approx. 98% of all bacteria from diesel fuels (see table below).
- filtration up to 0.5 µm
- water absorbing
- high flow
- long service life
- space-saving
- easy insert change
- for pressure and vacuum
- for up to 10 bar pressure
- eliminated cs. 98 % of all bacteria
Housing material -RINA certified -Bureau Veritas certified | Aluminium Almg 4.5 (AL) V4A stainless steel 306 (ST) |
Height (mm) | 640 |
Diameter (mm) -at lid -at bowl | 170 130 |
Weight (g) -AL -ST -Filter element (FE 150) | 4.240 9.820 1.040 |
Volume (l) | 8,0 |
Inlet/ Outlet connection (”) | 1/2 |
Max. pressure (bar) | 10 |
Temperature (°C) | -20 … 120 |
Flow rate: -Diesel (l/h) | 1.200 |
Diff. pressure in fuel flow diesel (bar) | 0,00 – 0,01 |
Tank capacity (l): -Engine oil -Hydraulic oil (ISO VG 46) -Gearbox oil | ≤ 200 ≤ 1.000 ≤ 500 |
Element change intervall (h) -Fuel -Engine oil -Hydraulic oil -Gearbox oil -Bio diesel | ≤ 1.500 (≈ 90.000 km) max. 800 (≈ 60.000 km) 1.000 – 2.000 1.500 800 – 1.000 |
Water absorbend | Yes |
Particle size (µm, ISO 4406) | ≤ 0,5 |
