Mobil Almo 500 Series

Pneumatic Rock Drill and Tool Lubricants

Mobil Almo 500 Series lubricants are premium quality high performance products primarily intended for the lubrication of pneumatically operated rock drills in underground and surface mining operations. The Mobil Almo Series oils are formulated from high quality base stocks and additives, which provide excellent chemical stability and good protection against wear and corrosion. They offer an optimum balance of adhesiveness, yet are emulsifiable enough to pick up moisture carried in the air stream reducing the negative effects of water on wear and corrosion. They do not form gummy deposits that could cause sluggish valve action. Even in the presence of water, the Mobil Almo 500 Series oils have good preferential metal-wetting properties that maintain continuous oil films. These properties in combination with high EP characteristics help provide excellent lubrication resulting in long equipment life.

Mobil Almo 500 Series possess high viscosity indexes and low pour points to ensure good lubrication at the low temperatures resulting from air expansion and guard against icing stoppages while providing adequate films on drill parts that may operate at high temperatures. Oil fog generation levels are extremely low.

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Features and Benefits

The Mobil Almo 500 Series oils provide an optimum performance balance which assures long equipment life and minimal maintenance costs. Their excellent wear protection characteristics and ability to provide adequate lubrication in the presence of water not only reduces wear but protects against rust and corrosion. Their good chemical stability prevents sludge and deposit formation reducing the need for frequent maintenance.

Features Advantages and Potential Benefits
Effective Chemical Stability Reduce sludge and deposit formation
Improves valve operation
Desired Emulsifiable Properties Effective lubrication in presence of water
High Viscosity Index Provides good lubrication at both high and low temperatures
Excellent Load Carrying Ability and Anti-Wear Protection Reduces component wear
Prolongs equipment life
Reduces maintenance costs
Very Good Adhesive Characteristics Protects metal surfaces from corrosion
Provides good lubricant films under all conditions
Rust and Corrosion Longer tool life
Increased tool performance

Applications

Mobil Almo 500 Series oils are recommended for use in all pneumatically operated rock drills in both underground and surface mining as well as in contractor and other industrial applications. They are suitable for percussive- and rotary- type tools. The viscosity grades allow selection for year-round use where seasonal ambient temperature variations are extreme.

  • Pneumatically operated rock drills in underground and surface mining operations
  • Pneumatically operated drills and jack hammers in highway construction and building operations
  • Rock drills in quarry operations
  • Percussion and rotary air-operated tools in industrial applications


Typical Properties

  Mobil Almo 524 Mobil Almo 525 Mobil Almo 527 Mobil Almo 529 Mobil Almo 530 Mobil Almo 532
ISO Viscosity Grade 32 46     220 320
Viscosity, ASTM D 445            
cSt @ 40ºC 32 46 100 172 220 320
cSt @ 100ºC 5.5 7.3 11.5 16.5 19.7 24.9
Viscosity Index, ASTM D 2270 108 105 102 102 100 99
Pour Point, ºC, ASTM D 97 -51 -30 -27 -24 -24 -21
Flash Point, ºC, ASTM D 92, min 170 188 220 220 220 232
Density @ 15.6ºC, ASTM D 4052, kg/L 0.880 0.883 0.899 0.893 0.898 0.902

Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

Switzerland Use: Toxicity class: free            BAG T No.: 611500

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