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Origin |
Korea |
[Introduction]
What is the Hydraulic oil ?
- Hydraulic oil is a suitable solution for hydraulic equipment and used for tool machines, press machines, aircraft, construction equipment, automobiles, and so on. Hydraulic oil plays important role throughout industry.
It functions in power transmission, parts lubrication, prevention of rust and corrosion in hydraulic system, and the extension of machine and tool life by cooling the system.
The important qualities for hydraulic oil.
- Suitable viscosity.
- Low pour point, so working is possible even in low temperature.
- High viscosity index minimizes viscosity change according to operational temperature.
- Excellent non-wear of operational parts.
- Excellent anti-foaming agency to prevents cavitation in operation.
- Excellent demulsification ability to make possible to separate water and oil.
- Excellent prevention of rust and corrosion.
[The controls of hydraulic oil]
Kinematic viscosity
- Under normal conditions, the viscosity change should not be large; the control standard is ± 10%. If viscosity change is over the figure, it is considered mixture of other oil and oxidation and an oil refill might be necessary.
Moisture
- The ordinary control standard of moisture is less than 1000ppm.
(Exception: F/E system -2000ppm, W/G system- 40±5% )
If moisture is around the control standard, it is necessary to drain and refill the oil
Total acid value
- If acid value is 0.5mg KOH/g over the original oil when the total acid value is measured, It is oxidated and it may be necessary to have an oil refill.
[Sort of Hydraulic oil(ISO)]

[Fire resistant Hydraulic fluids]
ECO POWER-Series (ISO L-HFDU)
- (Polyol ester based Biodegradability Fire-resistant Hydraulic Fluid)
- ECO POWER-Series was developed for severe service in all hydraulic applications where a fire hazard exists and petroleum hydraulic oil would be potentially unsafe. It's excellent stability enable itself to prolong fire-resistant properties and resistance to the formation of sludge or deposits in prolonged service.
Product list (FE, Eco Power Series)
| |
EcoPower |
EcoPower |
EcoPower |
EcoPower |
EcoPower |
| Model |
32 |
FE-46 |
FE-56 |
FE-56R |
FE-68 |
Specific
Gravity
(15/4°C) |
0.91 |
0.92 |
0.92 |
0.92 |
0.92 |
Viscosity
(40°C,cSt) |
32.0 |
46.0 |
56.0 |
56.0 |
68.0 |
| Viscosity Index |
180 |
178 |
180 |
180 |
176 |
| Pour point (°C) |
-35 |
-25 |
-25 |
-25 |
-25 |
Pollution level
(NAS 1638) |
7 |
7 |
7 |
7 |
7 |
| Color |
Yellow transparent |
Yellowish Brown |
Yellowish Brown |
Red |
Yellowish Brown |
[Special Feature (HYDRO FE-SERIES)]
- FIRE-RESISTANCE
- HYDRO FE-SERIES is not only un-combustible but also do not ignite respectively burn in most cases, where a conventional petroleum hydraulic oil will do.
- VISCOSITY PROPERTIES
- High V.I (Viscosity Index) enable this hydraulic fluid to accommodate wide temperature fluctuations.
- ANTI WEAR PROPERTIES
- Excellent Lubricity enable to apply for severe condition (like vane-pump), and to maintain crucial tolerances characteristic of advanced hydraulic system. This fluid provides dependable industrial hydraulic service in areas of and use where operation conditions place severe physical demands on the hydraulic fluids.
- NON-TOXIC-BIO-DEGRADABEL
- HYDRO FE-SERIES is classified as "Non-Toxic" and "Bio-Degradable". Unlike phosphate, this hydraulic fluid when burning, does not evolve large volumes of toxic smoke. HYDRO FE-SERIES when burned, generates non-toxic, non-noxious Smoke.
- DEMULSIBILITY
- Using a good additive, It gives the equal of mineral hydraulic fluids in separability.
[Application (HYDRO FE-SERIES)]

- Environment friendly industry.
- Water gate, sea dike, dredger Environment harmful industry
- Trash burner

- Iron, steel industry
- Blast furnace, Casting machine, Electric furnace, Hot rolling mills Glass manufacturing..
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