ECOFIL® · Oil filtration technology
ECOFIL® systems remove particles from 1 µm, water, soft sludges and resins in bypass, and can significantly extend oil-change intervals.
Manufactured by ECOFIL spol. s r.o., Michalovce, Slovakia — oil filtration technology since 1991.
The filtration unit runs in bypass, alongside the system's own filters. ECOFIL® elements are made from high-quality cellulose and polypropylene; at low pressure and relatively low flow, contamination deposits axially between the windings and forms a filter cake.
The result is a very high absorption capacity — up to 2,000 g of solids and up to 900 ml of water per element, depending on the insert — at an efficiency of 99.998 % (Ex value).
New oil is rarely clean. Unused oil typically sits at ISO 19/17/14–20/18/15 (NAS 8–9); ECOFIL® fine filtration brings it to 13/11/08–14/12/09 (NAS 2–3).
Each ISO 4406 code gives three range numbers: particles at ≥ 4 µm, ≥ 6 µm and ≥ 14 µm. Each step up roughly doubles the count.
| ISO 4406 | ≥ 4 µm | ≥ 6 µm | ≥ 14 µm | NAS 1638 | Note |
|---|---|---|---|---|---|
| 12/10/06 | 4,000 | 1,000 | 64 | – | |
| 12/10/07 | 4,000 | 1,000 | 130 | 1 | |
| 12/10/08 | 4,000 | 1,000 | 250 | – | |
| 13/11/08 | 8,000 | 2,000 | 250 | 2 | After ECOFIL® filtration |
| 14/12/09 | 16,000 | 4,000 | 500 | 3 | After ECOFIL® filtration |
| 15/13/10 | 32,000 | 8,000 | 1,000 | 4 | |
| 16/14/11 | 64,000 | 16,000 | 2,000 | 5 | |
| 17/15/12 | 130,000 | 32,000 | 4,000 | 6 | |
| 18/16/13 | 250,000 | 64,000 | 8,000 | 7 | |
| 19/17/14 | 500,000 | 130,000 | 16,000 | 8 | New, unused oil |
| 20/18/15 | 1,000,000 | 250,000 | 32,000 | 9 | New, unused oil |
| 21/19/16 | 2,000,000 | 500,000 | 64,000 | 10 | |
| 22/20/17 | 4,000,000 | 1,000,000 | 130,000 | 11 | |
| 22/20/18 | 4,000,000 | 1,000,000 | 250,000 | – | |
| 23/21/18 | 8,000,000 | 2,000,000 | 250,000 | 12 |
Water is the main cause of oil oxidation. It enters during filling, storage and transport, and in service through tank ventilation, worn hydraulic-motor pistons or sealing rings, and faults such as in heat exchangers. It forms acids, ages seals and hoses, and leads to corrosion, cavitation, soft sludges and varnish.
Measured as a colour difference (ΔE) on a membrane patch, per ASTM D7843.
Wear of seals and hoses, or defective breather filters.
Water content, oil ageing, overheating or impermissible oil mixing.
Improperly pressed hoses or incorrectly installed seals.
Cleaning cloths, defective system filters, plastic fibres from support rings.
Internal leaks, oil overloading in the machine, coking.
Refilling from dirty containers, or residue from new-machine production.
Overheating, or residue from impermissible oil mixing.
Cavitation, particles broken from metal surfaces, or mechanical damage.
Five standard elements, selected by oil type and target cleanliness.
Ultra-fine filtration; sensitive hydraulic systems; soft sludges
Fine filtration; sensitive hydraulic systems
Standard filtration; common hydraulic systems
Free-water absorption (“water eater”)
High-viscosity oils; transmissions and gearboxes
TRAFO and ECOTOWER TAN elements are used for insulating-oil regeneration.
Fixed bypass housings for permanent installation on a tank or engine.
| Housing | Tank volume | Max. working pressure | Height | Weight | Installation Ø | Inlet / outlet |
|---|---|---|---|---|---|---|
| ECOFIL® H35 | 500 l | 6–315 bar | 306 mm | 6.0 kg | 240 mm | 3/8″ / 1/4″ |
| ECOFIL® H20 | 300 l | 6–315 bar | 309 mm | 4.2 kg | 200 mm | 3/8″ / 1/4″ |
| ECOFIL® T35 | 500 l | 6.5 bar | 310 mm | 5.2 kg | 240 mm | 1/4″ / 1/4″ |
| ECOFIL® T20 | 300 l | 6.5 bar | 290 mm | 3.4 kg | 200 mm | 1/4″ / 1/4″ |
Self-contained units for servicing tanks and machines, and for filling equipment with new oil.
| Device | Flow | Tank volume | Max. working temp. | L × W × H | Weight |
|---|---|---|---|---|---|
| ECOFIL® SN M / XL / XXL 24V | 180 l/h (max.) | 1,000 l (max.) | 80 °C | — | 13 kg (max.) |
| ECOFIL® SN 030 24V | 180 l/h | 1,000 l | 80 °C | 600 × 230 × 500 mm | 37 kg |
| ECOFIL® SN 060 Dachshund | 360 l/h | 2,000 l | 80 °C | 720 × 230 × 500 mm | 37 kg |
| ECOFIL® SN 060 Trolley | 360 l/h (max.) | 2,000 l (max.) | 80 °C | 580 × 520 × 965 mm | 62 kg |
| ECOFIL® SN 120 | 720 l/h | 5,000 l | 80 °C | 835 × 520 × 1,005 mm | 90 kg |
| ECOFIL® SN 180 | 1,080 l/h | 8,000 l | 80 °C | 1,095 × 520 × 1,005 mm | 110 kg |
ECOFIL® also builds devices for specific duties — including ATEX, heated, magnetic and transformer-oil versions — and to individual requirements.
ONW units remove free and dissolved water to ≤ 10 ppm under vacuum, together with solid particles, soft sludges and sediments, and degas the oil in the vacuum chamber. They regenerate oil with the TAN element without complex modifications to the housings, run fully computer-controlled with real-time monitoring, and are built to individual requirements.
Filtering insulating oil through TRAFO and ECOTOWER TAN elements can substantially improve or fully regenerate it — meeting STN EN 60422 for mineral insulating oils in electrical equipment, and removing corrosive sulphur (DBDS). Regeneration proceeds gradually and is tracked with NEURON® oms.
From an oil temperature of 20 °C.
Real-time monitoring of filtration and regeneration, viewed in a web browser on Apple, Windows, Android and Linux devices, with cloud visualisation and archiving and micro-SD data logging. Available as NEURON® TRAFO and NEURON® STANDARD.
All components needed to check the condition and quality of oils and other fluids:
A fixed ECOFIL® bypass housing connects to the hydraulic tank or engine sump; a mobile device serves any tank and also filters new oil as it is filled. Removing water and impurities to 1 µm can extend oil life, stabilises the additive balance and protects the equipment.
Oil type, volume, operating temperature and target cleanliness class are enough for a first recommendation.
