Product Description
The Mobil Rarus SHC 1000 Series is a line of supreme performance oils primarily intended for the lubrication of severe duty rotary screw and vane air compressors. They are particularly suited for severe service where mineral oil-based products are not meeting expectations such as in severe applications subjected to high final compression temperatures or where extended oil drain intervals are desired. They are formulated with design-specific wax-free synthetic hydrocarbon fluids and a high technology additive system that assures exceptional resistance to oxidation and thermal degradation far superior to mineral oil-based air compressor oils. They provide outstanding equipment protection and reliability for compressors operating under conditions where other air compressor oils are not meeting expectations. Mobil Rarus SHC 1000 Series provide excellent wear protection and outstanding resistance to oxidation and thermal degradation, greatly superior to mineral oils. Their unique formulation provides the ability to reduce maintenance costs through minimising equipment problems and downstream deposits and carryover. Their high viscosity index ensures effective lubrication at high temperatures.
Mobil Rarus SHC 1000 Series lubricants significantly reduce the potential for fires and explosions when compared to mineral oil-based products. They exhibit a virtual absence of deposit formation and high autogeneous ignition temperatures improving both performance and safety. Their exceptional water separating characteristics reduce emulsion formation problems which may lead to blockage of coalescers and filters, thus reducing the need for frequent maintenance.
Features and Benefits
The use of the Mobil Rarus SHC 1000 Series oils can result in cleaner compressors and lower deposits compared to conventional mineral oils, resulting in longer running periods between maintenance intervals. Their excellent oxidation and thermal stability safely allow extended life capability while controlling sludge and deposit formation. They possess outstanding anti-wear and corrosion protection, which enhances equipment life and performance.
Features |
Advantages and Potential Benefits |
| High Performance Synthetic Base Stocks | Wide temperature range capability
Significant performance capabilities relative to mineral oils
Improved safety
Extended service life |
| Outstanding Oxidation and Thermal Stability | Reduced coking deposits
Longer oil life
Improved filter life
Lower maintenance costs |
| High Load-carrying ability | Reduced wear of bearings and gears |
| Excellent Water Separability | Less carryover to downstream equipment
Reduced sludge formation in crankcases and discharge lines
Reduced blockage of coalescers, inter- and after-coolers
Less potential for emulsion formation |
| Effective Rust and Corrosion Protection | Improved protection of internal compressor components |
Applications
The Mobil Rarus SHC 1000 Series oils are primarily intended for rotary screw and vane compressors. They are particularly effective for continuous high temperature operation with discharge temperatures up to 200º . Rarus SHC 1000 Series oils are recommended for units with a history of excess oil degradation, poor valve performance or deposit formation. They are compatible with all metals used in compressor construction and with conventional mineral oil-based air compressor oils but admixture with other oils may detract from the total performance capability.
Mobil Rarus SHC 1000 Series oils are not recommended for air compressors used in breathing air applications.
The following types of compressor applications have shown excellent performance with the Mobil Rarus SHC 1000 Series oils:
- Primarily recommended for rotary screw and vane air compressor
- Very effective in screw type compressors with oil injection cooling
- Units operating under severe conditions
- Multistage units with a history of excessive oil degradation from mineral oil-based products
- Compressor systems with critical gears and bearings
- Compressors used in stationary and mobile applications
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Typical Properties
 Mobil Rarus SHC 1000 Series |  Mobil
Rarus SHC 1024 |  Mobil Rarus SHC 1025 |  Mobil Rarus SHC 1026 |
| ISO Viscosity Grade | 32 | 46 | 68 |
| Viscosity, ASTM D 445 | | | |
| cSt @ 40º C | 31.5 | 44 | 66.6 |
| cSt @ 100º C | 5.7 | 7.2 | 10.1 |
| Viscosity Index, ASTM D 2270 , min | 127 | 131 | 136 |
| Copper Strip Corrosion, ASTM D130,24 h @ 100º C | 1B | 2A | 1B |
| Rust Characteristics Proc A, ASTM D 665 | Pass | Pass | Pass |
| Pour Point, ASTM D 97, ºC, max | -39 | -39 | -39 |
| Flash Point, ºC, ASTM D 92 | 245 | 246 | 246 |
| Specific Gravity 15º C, ASTM D 1298 | 0.846 | 0.849 | 0.856 |
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Precautions
MOBIL RARUS SHC 1000 SERIES is manufactured from high quality synthetic base oil, carefully blended with selected additives. As with all petroleum products, good personal hygiene and careful handling should always be practiced. Avoid prolonged contact to skin, splashing into the eyes, ingestion or vapour inhalation. Please refer to our Imperial Oil Material Safety Data Sheet for further information.
Note: This product is not controlled under Canadian WHMIS legislation.
The Mobil logotype, the Pegasus design are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.
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