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    Brand
    Caterpillar (Cat)
    Type
    Hydraulic oils
    Primary standard
    Cat
    Manufacturer code
    43107

    CAT BIO HYDO ADVANCED

    Synthetic ester hydraulic fluid with over 90% bio-based content, −30 to +45 °C

    Specifications

    Manufacturer code
    43107
    Availability
    On order

    Manufacturer's description

    Cat Bio HYDO Advanced is a synthetic ester based hydraulic fluid with more than 90% bio-based content (per ASTM D6866), developed for use across a wide range of applications, conditions and temperatures. Despite its environmentally friendly formulation, Caterpillar states it delivers the drain interval performance of a premium mineral-based hydraulic oil, with exceptional system protection, superior wear protection, corrosion resistance and fast air release comparable to premium mineral-based hydraulic oils. It is EU Flower eco-label certified and USDA BioPreferred-listed. The fluid is formulated with a low-foaming, fast-air-release chemistry and specially developed additives that form a protective wear layer on hydraulic pump and component surfaces, while emulsifiers hold water in dispersion rather than letting it separate and damage components. It is highly compatible with the seals used in Cat hydraulic systems, helping reduce leaks and maintenance costs, and maintains consistent wear protection across a wide temperature range. Typical values from the Cat technical data sheet include oxidation stability of more than 3,000 hours (dry, ASTM D943), a viscosity of 44.3 cSt at 40°C and 8.6 cSt at 100°C, a viscosity index of 176, a pour point of -45°C, and Brookfield viscosities of 1,227 cP at -20°C and 3,039 cP at -30°C (ASTM D2983). Caterpillar recommends it for ambient temperatures from -30°C to +45°C, and notes it is suitable for use in environmentally sensitive areas, with long-drain-interval capability confirmed by field testing.

    Applications

    • - Intended use (per safety data sheet): Hydraulic fluid

    Performance & benefits

    • EU Flower eco-label certified
    • USDA BioPreferred® listed Extended Drain Intervals
    • Excellent oxidation stability
    • Comparable to premium mineral-based hydraulic oils Exceptional System Protection
    • Superior wear protection
    • Corrosion resistance
    • Fast air release
    • Low Foaming FormulaFeatures Protects Components
    • Long LifeCat Bio HYDO Advanced outperforms the previously recommended and Provides Better Cat Bio HYDO and competitive brands. In fact, Cat Bio HYDO Advanced
    • Hydraulic Controlperformance is comparable to premium mineral-based hydraulic oils. Like Cat HYDO Advanced, Cat Bio HYDO Advanced can be taken up to a 6,000 hour drain
    • Good foam control and fast airinterval with S•O•SSM Fluid Analysis. release are important properties of hydraulic fluid. Biodegradability – >90% bio-based content (ASTM D6866) - fluid biodegradability to OECD 301B is 80% after 28 days. Air trapped in hydraulic oil reduces system response and causes Wide Temperature Range Protection – maintains consistent wear protection “sponginess” of controls. Trapped throughout the entire temperature range, -22°F (-30°C) – 113°F (45°C). From cold air also accelerates oil degradation. start through to operating temperature, Cat Bio HYDO Advanced gives you the
    • Excessive air and foam can lead tobest system protection. cavitation (collapsing air bubbles) and damage to hydraulic components. Improved Flow Through Filters – retains its ability to flow through filters even when water is present. Cat Bio HYDO Advanced releases air very quickly and special additives Seal Compatibility – Cat Bio HYDO Advanced is highly compatible with the keep the hydraulic fluid clear of foam, seals used in Cat Hydraulic systems. This means fewer leaks and lower even when it becomes contaminated maintenance costs. with engine oil
    • Component Protectionspecially developed additives form a protective layer on wear surfaces, reducing wear in hydraulic pumps and other components. Cat Bio HYDO Advanced provides excellent corrosion protection to steel and bronze Foaming Test Results components, even at high temperatures. (Contamination with 5% mineral oil)
    • After 1 MinuteAfter 5 Minutes Emulsifiers – are additives designed to hold and disperse water contamination

    Standards & approvals

    • Cat

    Typical characteristics

    PropertyTypical value
    Typical EnvironmentallyTypical Premium
    Cat Bio HYDO AdvancedBenefits of
    Long Drain Interval CapabilityYes
    Suitable for Use in EnvironmentallyYes
    Renewable content, ASTM D6866>80%
    Viscosity at 100ºC, ASTM D4458.6 cSt
    Viscosity at 40ºC, ASTM D44544.3 cSt
    Viscosity at 100ºC, ASTM D445 During Useand Wide Operating
    after Shear38.6 cSt
    Pour point, ASTM D 97-45ºC
    Brookfield Viscosity at -20ºC ASTM D29831,227 cP
    Brookfield Viscosity at -30ºC ASTM D29833,039 cP
    FZG Gear Test, DIN 51534, Fail stage4
    4-Ball Wear Test, ASTM D41720.35 mm
    35VQ25 Total Wear, mg (Lower is better)25 mg
    1 minute7 min – 13 min
    hours (1A is better than 1B, 1A at 150°C is1A at 150ºC
    Corrosion Protection, ASTM D665BPass

    Complete documentation

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    • SDSEN
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