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Mobil Rarus SHC™ 1020 Series
Mobil Industrial, Australia
Air Compressor Lubricant
Product Description
The Mobil Rarus SHC™ 1020 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 1020 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 1020 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 problems with emulsion formation coalescers ａnd filters reducing the need for frequent maintenance.
Features ａnd Benefits
The use of the Mobil Rarus SHC 1020 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 1020 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 C. Rarus SHC 1020 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 1020 Series oils are not recommended for air compressors used in breathing air applications ａnd should not be used in compressors where the discharge temperature is higher than the product flash point.
The following types of compressor applications have shown excellent performance with the Mobil Rarus SHC 1020 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
Typical Properties
| Mobil Rarus SHC 1020 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 | -48 | -45 | -45 |
| Flash Point, ºC, ASTM D 92 | 245 | 246 | 246 |
| Specific Gravity 15º C/15º C, ASTM D 1298 | 0.846 | 0.849 | 0.856 |
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.
The Mobil logotype, the Pegasus design ａnd Rarus SHC are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.
