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High-Performance Hydraulic Oil from China Suppliers - Superior Lubrication Protection for Equipment Efficiency

Longhai High-Performance Hydraulic Oil is expertly crafted in China using severely hydroprocessed high-VI base oils, combined with premium imported additive technology. This high-quality hydraulic oil provides outstanding anti-wear protection, corrosion resistance, demulsibility, and foam control, adhering to the strictest international standards, including DIN 51524 (Part 11), Denison HF-0, and ISO HM classifications. As a leading supplier and manufacturer, our factory ensures this hydraulic fluid is engineered for extreme operating conditions, representing the pinnacle of hydraulic lubrication technology. Choose Longhai for superior performance and reliability in your hydraulic systems

    Key Features & Benefits

    1. Superior Anti-Wear & Rust Protection

    - Micro-friction additive technology reduces metal-to-metal contact by 60% (FZG test results)
    - Dual-action corrosion inhibitors protect both ferrous and copper alloys in steel-copper friction pairs
    - Exceeds ASTM D665 rust test requirements with perfect score after 1000+ hours
    - Specially formulated for vane pumps operating at pressures up to 250 bar

    2. Advanced Foam Control & Air Release

    - Silicon-free antifoam package achieves 0ml foam after 5 minutes (ASTM D892)
    - Rapid air release <0.2% (ISO 9120) prevents micro-dieseling and cavitation
    - Reduces system noise by 15dB compared to conventional hydraulic oils

    3. Extended Oxidation Stability

    - Synthetic antioxidant system doubles service life (3000+ hours in ASTM D943)
    - Thermal stability up to 130°C prevents varnish formation
    - Maintains viscosity within ±5% through extended drain intervals

    4. Ashless Formula for Maximum Compatibility

    - Zero copper corrosion (1A rating per ASTM D130)
    - Safe for all seal materials (NBR, FKM, EPDM)
    - Ideal for axial piston pumps with bronze components

    Technical Specifications

    Viscosity Grades ISO VG 32, 46, 68
    Viscosity Index >140 (-30°C to 100°C)
    Standards GB 11118.1-94, DIN 51524-3, Denison HF-0

    Industrial Applications

    • Mobile hydraulic systems in excavators and cranes
    • Plastic injection molding machines
    • Steel mill hydraulic circuits
    • Mining equipment power units
    • Forestry machinery control systems

    Performance Advantages

    • 30% longer pump life in vane pump applications
    • 5% energy savings from reduced friction
    • Water separation in
    • Filterability ratio > 95% (ISO 13357)

    Quality Verification

    Third-party testing confirms:

    • FZG Test: Passes Stage 12 (DIN 51354)
    • Vane Pump Test:
    • Rotary Bomb Oxidation: 400+ minutes (ASTM D2272)

    Packaging Options

    20L Pails
    Sealed with UV-resistant coating

    205L Drums
    Steel with nitrogen blanketing

    1000L IBC
    Totes for high-volume users

    Frequently Asked Questions

    What are the main benefits of using this ashless hydraulic oil?
    The ashless formula ensures zero copper corrosion (ASTM D130 1A rating) and maximum compatibility with bronze components in axial piston pumps, while providing superior wear protection and extending service life to over 3000 hours.
    How does this oil improve system performance?
    It reduces metal-to-metal contact by 60% and lowers system noise by 15dB. Additionally, its advanced foam control prevents cavitation, leading to approximately 5% energy savings.
    Is this hydraulic oil compatible with standard seal materials?
    Yes, the formula is fully compatible and safe for all common seal materials, including NBR (Nitrile), FKM (Viton), and EPDM.
    What temperature range can this oil operate in?
    With a Viscosity Index (VI) greater than 140, it is designed for wide temperature operations ranging from -30°C to 100°C, with thermal stability up to 130°C.
    Does it meet international industrial standards?
    Yes, it conforms to major global standards including DIN 51524-3, Denison HF-0, and GB 11118.1-94, ensuring reliability across various industrial platforms.
    How does it handle water contamination?
    The oil features excellent demulsibility, achieving complete water separation in less than 15 minutes per ASTM D1401 testing, which prevents sludge and rust.