Hydrapremium HM Series
High Performance HLP Hydraulic Oils
Hydraulic Oils
Hydrapremium HM Series

KYROS HYDRAPREMIUM HM Series Hydraulic Oils are high quality HLP type hydraulic oils formulated from premium quality, low evaporation base oils and fortified with anti wear, anti-rust and oxidation inhibiting additives for superior performance. These oils are designed for hydraulic systems with high pressure and thermal loading and subject to corrosive conditions due to the presence of water. Based on highly refined, ageing resistant oils, KYROS HYDRAPREMIUM HM hydraulic oils under proper maintenance, retain high levels of cleanliness. These oils have good compatibility with elastomers and exhibit minimal changes in viscosity under higher operating temperatures. These oils meet IS: 10522/1983 (Reaffirmed in 2019).
Product Features:
- Highly Oxidation Resistant
- Low Foaming
- Excellent deaeration and demulsifying Properties
- Retain High Levels of Cleanliness
- Good compatibility with Elastomers
- Process Good Extreme Properties to protect sliding sufaces against Wear
- Exhibit Minimal Changes in Viscosity under higher operating temperatures.
OEM Approval:
Bosch Rexroth RDE 90235
Meets The Following Requirement:
DIN 51524, pt 2 (HLP), ISO 6743/4 (HM), ASTM D6158-05 (HM), ISO 11158 (HM), AFNOR NF E 48-603 (HM), SS155434, VDMA 24318, SEB 181 222, Eaton E-FDGN-TB002-E, U. S. Steel 127 and 136, Cincinnati Machine P-68, P69, P-70, Parker Denison HF-0, HF-1, HF-2.
Application Areas:
KYROS HYDRAPREMIUM HM Series oils are recommended for all large and medium sized hydraulic systems where good separation of dragged-in water, combined with overall anti wear properties is an essential requirement. KYROS HYDRAPREMIUM HM Series oils can also be used as general purpose lubricating oils for use in gearboxes, general machinery and bearings.
Packing:
KYROS HYDRAPREMIUM HM SERIES oils are available in packaging of 210 liters. Other packaging is available based on request to meet specific requirements and available in ISO VG viscosities, 32, 46, 68.
Technical Data:
| Property | Test Method | Typical Values HM 32 | Typical Values HM 46 | Typical Values HM 68 |
|---|---|---|---|---|
| Appearance | Visual | Clear Liquid | Clear Liquid | Clear Liquid |
| Color | ASTM D1500 | L 0.5 | L 0.5 | L 0.5 |
| Density @ 29.5 °C, g/ml | ASTM D7042 | 0.8440 | 0.8376 | 0.8580 |
| Kinematic Viscosity @40°C, cSt | ASTM D7042 | 32.25 | 46.41 | 68.36 |
| Viscosity Index, min | ASTM D2270 | 105 | 105 | 100 |
| Flash Point, COC, °C, min | ASTM D92 | 180 | 180 | 210 |
| Pour Point, °C, max | ASTM D97 | -12 | -12 | -12 |
| Total Acid Number, mg KOH/g, max | ASTM D974 | 1.5 | 1.5 | 1.5 |
| Water Separability @ 54°C, Time to reach 3 ml emulsion, minutes, max | ASTM D1401 | 20 | 20 | 20 |
| Air Release Time, minutes, max | IS 10522 | 7 | 10 | 15 |
| Foaming Stability after 10 minutes settling period, Foam, ml | ASTM D892 | |||
| Seq 1 – @ 24° C | ASTM D892 | Nil | Nil | Nil |
| Seq 2- @ 93.5° C | ASTM D892 | Nil | Nil | Nil |
| Seq 3 -@ 24° C | ASTM D892 | Nil | Nil | Nil |
| Copper Strip Corrosion @ 100°C, 3 hrs., max | ASTM D130 | 1 | 1 | 1 |
| Rust Preventive Characteristics | ASTM D665B | Passes | Passes | Passes |
| FZG Test, (A/8.3/90) Failure load Stage | DIN 51354 – 2 | 12 | 12 | 12 |