Product Description
KATMOTO HYDRO HM 46 is a premium anti-wear hydraulic oil meeting DIN 51524-2 HLP / ISO HM for construction, mining and industrial hydraulic systems. Its zinc-based anti-wear additive system provides excellent pump and valve protection, with strong oxidation and thermal stability, rapid water separation, good air release and reliable rust and corrosion protection for dependable, long-life hydraulic performance.
Key Performance Features
| Excellent anti-wear protection
protects vane, gear and piston pumps under high pressure and load. |
Oxidation & thermal stability
resists oil thickening, sludge and varnish for long oil life. |
| Rapid water separation
fast demulsibility keeps the hydraulic system dry and protected. |
Rust & corrosion protection
protects hydraulic components against rust and corrosion. |
| Good air release & low foam
minimises foaming and entrained air for stable hydraulic response. |
Wide equipment suitability
suitable for excavators, loaders, cranes and industrial hydraulics. |
Applications & Performance Level
| Applications | Hydraulic systems of excavators, wheel loaders, cranes and industrial equipment, and general anti-wear hydraulic applications where an ISO VG 46 DIN 51524-2 HLP / ISO HM oil is specified. |
| Specification | DIN 51524-2 (HLP) — anti-wear hydraulic oil standard for HLP-type fluids. ISO 11158 HM · ISO 6743-4 — international anti-wear hydraulic oil classifications. Denison HF-0/HF-1/HF-2 — suitable for Denison vane and piston pump requirements. Eaton (Vickers) M-2950/I-286 — suitable for Eaton/Vickers pump anti-wear requirements. Bosch Rexroth RDE 90235 — suitable for Bosch Rexroth hydraulic pump requirements. |
| OEM Suitability | Caterpillar, Komatsu, Volvo, Hitachi, XCMG, SANY and other construction/mining and industrial hydraulic systems specifying ISO VG 46 HLP. Follow the OEM manual for the correct grade. |
| Important Notice | Use only where the equipment manufacturer specifies this grade/type and a matching performance level. ”Suitable for” does not mean official approval unless separately certified. Always follow the OEM manual. |
| Property | Test Method | Target Typical Value |
| Appearance / Color | Visual | Clear bright liquid |
| ISO Viscosity Grade | ISO 3448 | ISO VG 46 |
| Density @ 15°C | ASTM D4052 | 0.870 g/cm³ |
| Kinematic Viscosity @ 40°C | ASTM D445 | 46.0 mm²/s |
| Kinematic Viscosity @ 100°C | ASTM D445 | 6.8 mm²/s |
| Viscosity Index | ASTM D2270 | 100 |
| Flash Point, COC | ASTM D92 | 220°C |
| Pour Point | ASTM D97 | -27°C |
| FZG Scuffing (A/8.3/90) | ISO 14635-1 | ≥ 11 fail stage |
| Rust Test (A & B) | ASTM D665 | Pass |
| Copper Corrosion (3 h, 100°C) | ASTM D130 | 1a |
| Demulsibility (40-37-3) | ASTM D1401 | ≤ 30 min |
| Foaming Tendency (Seq. I) | ASTM D892 | Pass |
Note: The target values above are typical product values for reference only; final production data is subject to the official KATMOTO Technical Data Sheet (TDS) and laboratory test report.
