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Mobil Vactra™ Oil Numbered Series

Way and Slide Lubricants

Product Description

The Mobil Vactra™ Oil Numbered Series are premium-quality slideway lubricants specifically designed to meet the requirements for accuracy, aqueous coolant separability, and equipment protection of precision machine tools.

The Mobil Vactra Oil Numbered Series is carefully formulated from high-quality base stocks and performance balanced with an advanced additive system that provides controlled frictional properties, compatibility with aqueous metal working fluids and corrosion protection of parts and equipment. The unique additive package provides exceptional frictional properties on a wide variety of way materials, including steel on steel and steel on polymer, reducing stick-slip and chatter. This allows smooth, uniform motion at design travel speeds enhancing machine productivity and accuracy helping to prolong tool life and enhance surface finish. The Mobil Vactra Oil Numbered Series has been optimized to provide separability from many aqueous coolants while minimizing the corrosive effects of high pH coolants on lubricated surfaces.


Features and Benefits

The Mobil Vactra Oil Numbered Series has been developed and specifically designed to provide an extra margin of machinery protection by satisfying the stringent demands of slide ways. The oils exhibit excellent lubricity and load-carrying performance contributing significantly to improving the production of quality parts. The Mobil Vactra Oil Numbered Series provides separability from many water and aqueous coolants reducing the potential negative effects of cross contamination which helps to enhance the service life and performance of both the lubricant and coolant.


Advantages and Potential Benefits

FeatureAdvantages and Benefits
Controlled Frictional CharacteristicsHelps eliminate stick slip; allows consistently accurate machining
Multi-material CapabilitiesSuitable for a wide range of way material combinations allowing for product consolidation
Water and Aqueous Coolant SeparabilityHelps improve the life and performance of many aqueous coolants
AdhesivenessPrevents removal of lubricant from critical surfaces
Long Term Rust and Corrosion ProtectionHelps reduce the deterioration of sliding surfaces in the presence of water and aqueous coolants



Mobil Vactra Oil Numbered Series products are recommended for the lubrication of machine tool slideway systems. They are designed for use with combinations of cast iron, steel and non-metallic way materials. Mobil Vactra Oil Numbered Series may be applied by hand, forced-feed lubricator or in flood application by circulation system.


Typical Properties

Mobil Vactra Oil Numbered SeriesNo. 1No. 2No. 3No. 4
ISO Viscosity Grade3268150220
cSt @ 40 C, ASTM D4453268156221
Flash Point, ASTM D92, °C216228248240
Pour Point, ASTM D97, °C-30-18-6-3
Copper Strip Corrosion, ASTM D 130C, 3 h1B1B1B1B
Rust Protection, ASTM D 665BPassPassPassPass
FZG Load Support, ISO 14635, Fail Stage13131313


Health and Safety

Based on available information, this product is not expected to produce adverse effects on health when used for the intended application and the recommendations provided in the Material Safety Data Sheet (MSDS) are followed. MSDS's are available upon request through your sales contract office, or via the Internet. This product should not be used for purposes other than its intended use. If disposing of used product, take care to protect the environment.

The Mobil logotype, the Pegasus design and Vactra are trademarks of Exxon Mobil Corporation, or one of its subsidiaries. 


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