Mobil Vacuoline 546
Mobil Vacuoline 546 is part of the Mobil Vacuoline 500 Series, a family of high-performance heavy-duty circulating oils developed for demanding industrial equipment. These lubricants were originally designed for No-Twist rod mills but are also suitable for a wide range of circulating systems lubricating gears and bearings. The formulation uses high-quality base stocks and a proprietary additive system to deliver excellent oil retention, corrosion protection and dependable performance.
One of the key advantages of Mobil Vacuoline 546 is its strong anti-wear performance. The lubricant provides effective protection for gears, bearings and other components operating under moderate loads. This helps reduce wear, extend equipment life and improve system reliability.
Mobil Vacuoline 546 also provides excellent demulsibility. The oil separates rapidly from water and contaminants, helping maintain lubrication performance even under severe water contamination. The formulation also offers high resistance to oxidation and thermal degradation, supporting extended oil life and cleaner systems.
Another important benefit is its versatility across multiple applications. Mobil Vacuoline 546 is suitable for circulating systems, plain and rolling element bearings and moderate-duty gear units. It can also be used in hydraulic systems requiring high viscosity anti-wear fluids and in compressors or vacuum pumps handling air or inert gases where discharge temperatures do not exceed approximately 150°C.
Mobil Vacuoline 546 meets Morgan No-Twist® mill oil quality specifications and Danieli rod mill requirements. The ISO VG 680 viscosity provides very high film strength and dependable lubrication for heavily loaded circulating systems.
Physical characteristics include ISO VG 680 viscosity grade with a kinematic viscosity of approximately 453 mm²/s at 40°C and 29.4 mm²/s at 100°C. Mobil Vacuoline 546 has a flash point of approximately 286°C and a pour point of approximately −12°C. The oil provides reliable wear protection, water separation and long service life in industrial circulating applications.
