The combination of extreme environmental temperatures ranging from -40°C in the northernmost areas to +50°C in desert regions, continuous shocks and vibrations, and surroundings filled with mine water, grit, and corrosive gases causes intensive mechanical and chemical degradation. This leads to a significantly shortened lifespan of crucial components like bearings, gears, and cylinder walls.

The right lubricants are therefore essential. They form a separating film between surfaces, preventing direct metal-to-metal contact. The viscosity, or the internal friction, of the lubricant is crucial here. Too low a viscosity results in insufficient load-bearing capacity, while too high a viscosity impedes the lubricant’s supply between surfaces. Furthermore, the lubricant must withstand high pressures, temperatures, and contamination.

Specific lubrication challenges in mining

Mine water can wash out additives and form emulsions that compromise lubrication. Acids from rocks and ores damage components, while explosive gases like methane cause thermal degradation. Fine mining grit penetrates everywhere, leading to abrasive wear.

The extreme temperature fluctuations also pose a challenge. Freezing temperatures prevail at depth, while above ground, the heat can be unbearable. The viscosity must remain stable for effective lubrication.

Mining requires high-quality lubricants that can withstand:

• Emulsion, washing out, and dilution from mine water;
• Chemicals and acids from the environment;
• High pressure and the abrasive action of grit particles;
• Thermal degradation and explosion risks;
• Oxidation and microbial contamination at high temperatures;
• Analysis of dominant wear mechanisms.

The right balance of synthetic base fluids and advanced SYNGIS additives is crucial. Only optimal viscosity and adhesion can guarantee effective lubrication and protection in this demanding environment.