Mobil Rarus™ Excel Series
Mobil industrial , South Korea
Product Description
The Mobil Rarus™ Excel Series is our improved premium performance ashless air compressor lubricant primarily intended for the lubrication of severe duty rotary screw and vane air compressors. These products are formulated with very high quality mineral base oils and a high performance additive system designed to provide exceptional equipment protection and reliability for compressors operating under severe conditions. Mobil Rarus™ Excel Series provide excellent wear protection and outstanding resistance to oxidation and thermal degradation leading to reduced deposit formation. Mobil Rarus™ Excel Series exceptional water separation characteristics reduce emulsion formation and carryover into downstream piping and equipment.
Features and Benefits
The use of Mobil Rarus™ Excel Series can result in cleaner compressors and lower deposits compared to conventional mineral oils, resulting in longer running periods between maintenance intervals. 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 |
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| Reduced Vanish and Sludge Formation | Improved valve performance |
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| Outstanding Oxidation and Thermal Stability | Longer oil life |
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| Exceptional Water Separability | Less carryover to downstream equipment |
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| Effective Rust and Corrosion Protection | Improved protection of internal compressor components |
Applications
Mobil Rarus™ Excel Series are primarily intended for rotary screw and vane air compressor. Mobil Rarus™ Excel Series are particularly effective in screw type compressors with oil injection cooling and in units with continuous high temperature operation (in line with DIN 51506 indications). The product is compatible with all metals used in compressor construction and with mineral-oil compatible elastomers used in seals, O-rings and gaskets.
Mobil Rarus™ Excel Series are not intended or recommended for use in air compressors for breathing applications.
The following types of compressors have shown excellent performance with Mobil Rarus™ Excel Series:
- Rotary screw compressors
- Rotary vane compressors
- Compressor systems with critical gears and bearings
- Compressors used in stationary and mobile applications
Specifications and Approvals
| Mobil Rarus™ Excel Series meets or exceeds the requirements of: | 32 | 46 | 68 |
| DIN 51506:2013-12 VDL | X | X | X |
| CHINA GB 12691-1990, L-DAB | X | X | X |
Typical Properties
| Mobil Rarus™ Excel Series | 32 | 46 | 68 |
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| ISO Viscosity Grade | 32 | 46 | 68 |
| Density @ 15ºC, ASTM D 1298 | 0.85 | 0.86 | 0.87 |
| Viscosity, ASTM D 445 |
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| cSt @ 40ºC | 29.1 | 44.5 | 64.9 |
| cSt @ 100ºC | 5.4 | 7.0 | 8.9 |
| Viscosity Index, ASTM D 2270 | 120 | 116 | 108 |
| Demulsibility @ 54°C, min, Time to break, ASTM D1401 | 10 | 10 | 10 |
| Copper Strip Corrosion, ASTM D130, 3 h @ 100º C | 1B | 1B | 1B |
| RPVOT, min, ASTM D2272 | 2577 | 2123 | 1758 |
| Rust Characteristics; ASTM D665 B; | Pass | Pass | Pass |
| Foam Seq I, mL/mL, ASTM D 892 | 10/0 | 20/0 | 0/0 |
| Flash Point, ºC, ASTM D 92 | 236 | 238 | 242 |
| Pour Point, ºC, ASTM D 97 | -36 | -30 | -33 |
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, or will be provided by seller to customers if and as legally required. 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 Mobilube, SHC are trademarks of Exxon Mobil Corporation, or one of its subsidiaries.
05-2020