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Oils for slideways and sliding surfaces are an important element in modern production technologies. They should provide very good performance, precision and economy. They avoid direct contact of sliding surfaces and protect the lubricated surfaces against mechanical damage and corrosion. Good quality oils for slideways enable gentle and uniform movement of tool carriers, very precise positioning even with small elements and high loads.

Oils for slideways in machine tools

The most important parameter of the slide oil used in machining machines is the ability to demulsify from the coolant (separating from the cooling lubricant emulsion). This allows the oil to be collected from the surface of the reservoir, extends the life of the coolant and maintains its parameters for a longer period. Such oils are the slideways oils of the Divinol T EP series by Zeller & Gmelin, which comply with the DIN 51502 CGLP standard. In combination with Zubora coolants, they additionally prevent the formation of black deposits in the cavities and traces on the slideways. Shell Tonna S2 and S3 are other products with demulsifying properties.

Oil lubrication guide


Oils for slideways in oil-cooled metal processing machines

For oil-cooled machines, we recommend the Divinol T6 KA series, which comes in ISO 68, 150 and 220 viscosities. These are dedicated products that can also be used in machines without separate oil circulation, e.g. when machining oil and guide oil are supplied from the same container.

The key parameters of a good slide oil

  • bearing ability to operate at high pressures
  • low static friction
  • low dynamic friction at different speeds
  • do not cause stick-slip vibrations
  • very good formation of the lubricating film
  • aging resistance
  • anti-corrosion protection
  • wear protection

Shell Tonna S2 vs Tonna S3

Shell Tonna S3 guide oils outperform the S2 series in terms of resistance to coolant washout, better stick-slip and are more efficient. Tonna S2 oils are recommended for less demanding applications.

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