Phillips 66® Circulating Oil is a high-quality, rust-inhibited mineral oil specially developed for the lubrication of conveyor and crusher bearings in copper crushing mills.

You are currently viewing CIRCULATING OIL

Features & Benefits

  • Excellent water-separating properties to minimize the formation of emulsions
  • Good oxidation resistance
  • Protects against rust and corrosion
  • Good foam resistance


  • Ball mills, cement mills, hot and cold strip mills, plate mills
  • Conveyor bearings in mining applications
  • Plain and rolling-element bearings in ferrous and non-ferrous mills
  • Circulating systems where water contamination is a problem
  • Large, slow-speed bearings in mixers and mills

Technical Details

  • ISO Grade: 150
  • Licenses & Approvals


    Additional Details

    ISO Grade 150
    Specific Gravity @ 60°F 0.878
    Density, lbs/gal @ 60°F 7.31
    Color, ASTM D1500 2
    Flash Point (COC), °C (°F) 277 (531)
    Pour Point, °C (°F) -15 (5)
    cSt @ 40°C 153
    cSt @ 100°C 14.7
    SUS @ 100°F 805
    SUS @ 210°F 78.5
    Viscosity Index 95
    Acid Number, ASTM D874, mg KOH/g 0.05
    Demulsibility, ASTM D1401, minutes to pass 5
    Foam Test, ASTM D892, Seq. I, mL 0/0
    Rust Test, ASTM D665 A&B Pass
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