According to the characteristics of the actual situation of mining machinery, the requirement of lubrication oil is quite strict:
1. Due to the volume of the mine equipment and its fuel tank volume is small, oil temperature is easy to rise higher during working condition, which requires the lubrication oil has good oxidation resistance and thermal stability.
2. Because working environment is very harsh, there are many dust and content much water, the lubrication oil is vulnerable to be polluted by these impurities from the external environment, so the lubrication oil must have good rust resistance and corrosion resistance.
3. Mining machinery equipments normally work at outdoors, so the work environment is affected by the temperature change, especially in summer and winter, the temperature difference is bigger, so the viscosity of the lubrication oil must be less affected by temperature.
4. There are some mining machineries that easy to fire or explosion, of course requires the lubrication oil with combustion resistance, cannot use the combustible mineral oil to replace lubrication oil.
5. The last is the lubricant sealing should be good to avoid damage to influence the lubrication effect to cause some unnecessary danger.