Molub-Alloy OG 936 SF Heavy

Open gear compounds (solvent free)

Castrol Molub-Alloy™ OG 936 SF Heavy (previously called Molub-Alloy 936 SF Heavy) is an open gear lubricant developed specifically for use on heavy duty equipment in mining and industrial service.

  • Product category Grease Applications
  • Application Open Gear

Description

Castrol Molub-Alloy™ OG 936 SF Heavy (previously called Molub-Alloy 936 SF Heavy) is an open gear lubricant developed specifically for use on heavy duty equipment in mining and industrial service. Molub-Alloy OG 936 SF Heavy is compounded to give maximum protection to gears and slides on large draglines and shovels while minimising potential pollutants to the environment.

A proprietary blend of Molub-Alloy lubricating solids is included to promote anti-wear and load carrying properties. These lubricating solids work synergistically with chemical anti-wear and Extreme Pressure (EP) additives to reduce contact temperatures while providing excellent anti-weld protection under extreme pressure and shock loading.

The structural integrity and strength of the lubricating film is particularly valuable in the critical process of seating new gears because of the natural occurrence of high spots (asperities) in newly machined surfaces. The lubricating film must separate the mating surfaces sufficiently to cushion the effect of the impact of asperities, and therefore minimise initial pitting which could lead to progressive and destructive pitting later.

A highly refined, viscous, paraffinic petroleum derivative is the foundation of a blended base fluid with excellent natural chemical and thermal stability. Molub-Alloy OG 936 SF Heavy is compounded to flow readily in the film-forming process; yet it resists "squeeze-out" and clings tenaciously even to gear teeth in vertical orientation. Rust and oxidation inhibitors are included in the formulation to protect the equipment and the lubricating film against the elements in severe climates.

Application

Molub-Alloy OG 936 SF Heavy is suitable for use on all types of open gears, racks and pinions and sliding or skidding applications such as draglines and shovels. It can be applied either manually or by heavy duty automatic systems.

This product is used extensively in mining, construction, onshore drilling operations and on offshore installations, facilitating effective lubrication and protection on:

Rack and pinion jacking mechanisms
Cantilever skidding systems
Mooring winch open gearing and slides
FPSO offloading systems
Crane slew ring & pinion
Exposed threads on penstock valves
Heavy duty top dressing for the ultimate protection of wire ropes

Molub-Alloy OG 936 SF Heavy complies with the Bucyrus International SD 4713 specification (CAT) and Komatsu specifications for Open Gear Lubricants.

Characteristics

Operating temperature Max. 176°F
Viscosity 2030 mm/s² at 104°F
NLGI 0/1
Oil type Mineral
Thickener Lithium
Food grade No
Product type Greases
Applicable to these sectors Automotive Manufacture, Cement, Machinery, Metals, Mining, Power Generation, Sugar

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