Mobiltac 50M Series

Mobil industrial , Peru


Product Description

The Mobiltac 50M Series of premium performance open gear lubricants is designed to provide outstanding protection of heavily loaded open gears exposed to severe operating conditions. Mobiltac 50M is a semi-synthetic open gear lubricant containing high performance additives designed to provide an adhesive film and excellent load carrying capability particularly for open gears on shovels, draglines, and associated mining equipment.


Features and Benefits

Mobiltac 50M has the following features and potential benefits:

•  Very high viscosity, semi synthetic lubricant designed to extend component life in heavily loaded open gear applications

•  Excellent wash-off resistance in very wet operating environments

•  Solid anti-wear and extreme pressure protection of mating surfaces against damaging wear in contact zones

•  Available in three grades for different ambient operating conditions.

•  Mobiltac 50M Heavy is recommended for ambient temperatures >20°F (-7°C) Mobiltac 50M Light is recommended for ambient temperatures from -15°F (-26°C) to 70°F (21°C) while Mobiltac 50M Arctic is recommended for ambient temperatures <50°F (10°C).

•  Weld load protection > 800 kg



Mobiltac 50M is recommended for the lubrication of:

     •  Open gears on shovels, draglines and associated mining equipment with spray, brush or drip application

     •  The hoist gear on Caterpillar Mining electric rope shovels and in applications where an extra heavy open gear lubricant is desired


Properties and Specifications





Appearance, Visual

Viscous Semi-Fluid

Viscous Semi-Fluid

Viscous Semi-Fluid

Color, Visual




Copper Strip Corrosion, Rating, ASTM D4048




Flash Point, °C, ASTM D92

300°F (149°C)

284°F (140°C)

290oF (143oC)

Four-Ball Extreme Pressure Test, without Diluent, Weld Point, kgf, ASTM D2596




Rust, Rating, ASTM D1743




Ventmeter, 600, psi, Lincoln VE-1

20°F @ <30 sec

-15°F @ <150 sec

-30oF @<150 sec

Viscosity @ 40 C, Base Oil, mm2/s, ASTM D445

50,000 cSt

50,000 cSt

50,000 cSt


Health and Safety

Health and Safety recommendations for this product can be found on the Material Safety Data Sheet (MSDS) @

All trademarks used herein are trademarks or registered trademarks of Exxon Mobil Corporation or one of its subsidiaries unless indicated otherwise.


Terpel Comercial del Perú S.R.L.
Av. Jorge Basadre Grohmann 347,
Interior 1005, San Isidro
Lima, Perú
24 Horas emergencia en salud             LUBES (511)- 222 0284

Typical Properties are typical of those obtained with normal production tolerance and do not constitute a specification.  Variations that do not affect product performance are to be expected during normal manufacture and at different blending locations.  The information contained herein is subject to change without notice. All products may not be available locally. For more information, contact your local ExxonMobil contact or visit
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