Shell Tonna S3 M 220
Shell Tonna S3 M 220 is a premium machine tool slideway oil developed to provide reliable lubrication, superior friction control and long-lasting protection for machine tool slideways, tables and feed mechanisms. Formulated using carefully selected base oils and advanced additive technology, Shell Tonna S3 M 220 delivers excellent frictional performance and strong adhesion to slideway surfaces. The formulation is designed to support accurate machine operation, particularly in high-precision and low-speed machining applications where smooth and controlled movement is essential.
One of the key advantages of Shell Tonna S3 M 220 is its excellent friction control and stick-slip prevention. Stick-slip behaviour can occur when machine slideways move unevenly due to fluctuating friction between surfaces. Shell Tonna S3 M 220 is specifically formulated to minimise these effects, ensuring smoother movement of machine slides and tables. This improved motion control enables more accurate positioning of machine components, resulting in improved surface finish quality and greater dimensional accuracy of machined parts.
Shell Tonna S3 M 220 also offers strong adhesion to slideway surfaces. Special tackiness additives allow the oil to remain firmly attached to machine tool components even in the presence of metalworking fluids. This strong adhesion helps prevent lubricant wash-off caused by cutting fluids and maintains consistent lubrication across the slideway surfaces. As a result, Shell Tonna S3 M 220 helps reduce lubricant consumption and maintain uniform machine performance during operation.
Another important benefit of Shell Tonna S3 M 220 is its excellent separation from water-miscible cutting fluids. The oil separates readily from soluble metalworking fluids, allowing contaminants to be easily removed through skimming. This separation capability helps maintain coolant cleanliness, extend coolant service life and support improved cutting performance while reducing potential health and safety concerns associated with contaminated coolants.
Shell Tonna S3 M 220 also provides outstanding anti-wear and corrosion protection for machine tool components. The advanced additive system forms a durable lubricating film between metal surfaces, helping protect slideways, gears and bearings from wear. In addition, the formulation provides effective corrosion protection for machine tool surfaces when exposed to water-miscible cutting fluids or humid operating environments.
Shell Tonna S3 M 220 is particularly suited for the lubrication of vertical machine tool slideways where higher viscosity oils are required to maintain a stable lubricating film. It is compatible with a wide range of slideway materials including cast iron and synthetic materials and can also be used in machine tool gearboxes, headstocks and combined lubrication systems where appropriate.
Physical characteristics include a kinematic viscosity of approximately 220 mm²/s at 40°C and 19.1 mm²/s at 100°C with a viscosity index of approximately 98. Shell Tonna S3 M 220 has a density of approximately 894 kg/m³ at 15°C, a flash point of around 250°C and a pour point of approximately −15°C, supporting reliable lubrication performance in demanding machine tool applications.
