Mobilgrease XHP 321 Mine (5 Gal. Pail)
Mobilgrease XHP 321 Mine is specially engineered for superior performance in extra-heavy-duty construction and mining equipment. Mobilgrease XHP 321 Mine is NLGI Grade 1, containing 5 percent molybdenum disulfide to provide structural stability. This means longer component life for your equipment, and a grease that withstands high temperatures, water washout and Extreme Pressure applications. XHP 321 Mine maintains excellent pumpability in cooler temperatures, and is highly recommended for most heavy-equipment central lube systems. Mobilgrease XHP 321 performs well in severe operating conditions and temperatures, ensuring exceptional staying power for pins and bushings, plus heavily loaded plain journal bearings. Mobilgrease XHP 321 Mine is compatible with conventional sealing materials, and will not corrode copper or steel bearing alloys.
Features
Mobilgrease XHP 100 Mine, 320 Mine, 321 Mine, and 322 Mine are leading members of the Mobilgrease brand of products, which has gained a reputation for innovation and performance excellence. The Mobilgrease XHP Mine Series is designed by ExxonMobil formulation technologists and backed by our worldwide technical support staff.
Mobilgrease XHP 100 Mine, 320 Mine, 321 Mine, and 322 Mine were specifically designed to meet the needs of off-highway and mining equipment that required exceptional EP / anti-wear performance and which would remain in place even in tough conditions of water spray, high sliding, and high temperatures. These greases offer the following features, advantages, and potential benefits:
| Features | Advantages and Potential Benefits |
| Excellent EP and anti-wear properties | Superb equipment protection and potential equipment life extension even in severe operating conditions |
| High level of molybdenum disulfide | Optimum equipment protection in high sliding mechanisms and with extended re-lubrication intervals |
| Exceptional resistance to water washout and spray-off | Ensures proper lubrication and protection even in hostile work environments |
| Very good low temperature pumpability and centralized system capability (Mobilgrease XHP 100 Mine and 320 Mine) | Provides excellent low temperature pumpability and start-up performance, a key feature for remote applications |
Applications
Mobilgrease XHP 100 Mine, 320 Mine, 321 Mine, and 322 Mine are recommended for severe off-highway and mining applications in terms of operational severity and water spray. Specific applications include:
- Bucket pins, pivot pins, and heavily loaded chassis components
- Heavy equipment central lubrication systems
- General purpose chassis lubrication
Typical Properties
| Mobilgrease XHP 100 Mine | Mobilgrease XHP 320 Mine | Mobilgrease XHP 321 Mine | Mobilgrease XHP 322 Mine | |
| NLGI Grade | 0 | 0 | 1 | 2 |
| Thickener Type | Lithium Complex | Lithium Complex | Lithium Complex | Lithium Complex |
| Color, Visual | Gray-Black | Gray-Black | Gray-Black | Gray-Black |
| Molybdenum Disulfide, Wt. % | 5 | 5 | 5 | 5 |
| Penetration, Worked, 25ºC, ASTM D 217, mm/10 | 370 | 370 | 325 | 280 |
| Dropping Point, ºC, ASTM D 2265 | 200 | 270 | 270 | 270 |
| Viscosity of Oil, ASTM D 445 | ||||
| cSt @ 40ºC | 100 | 320 | 320 | 320 |
| Penetration Consistency Change, Roll Stability, ASTM D 1831, mm/10 | +14 | 0 | ±10 | ±10 |
| Water Washout, ASTM D 1264, 79°C, % Loss | - | - | 10 | 2 |
| Water Sprayoff, ASTM D 4049, % Loss | - | - | 28 | 16 |
| U.S. Mobility, AM-S 1390, gms/min (˚C/˚F) | 32 (-29/-20) | - | 15 (-7/20) | 11 (-12/10) |
| 4-Ball Wear Test, ASTM D 2266, Scar, mm | 0.4 | 0.4 | 0.4 | 0.4 |
| Corrosion Prevention, ASTM D 1743, Rating | Pass | Pass | Pass | Pass |
| Copper Strip Corrosion, ASTM D 4048 | 1A | 1A | 1A | 1A |
| 4-Ball Weld Load, ASTM D 2596, Kg | 315 | 400 | 400 | 400 |
