Castrol Molub-Alloy OG 936 SF Heavy Open Gear Lubricants
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.Additional Information
| Size | 40 lb, 400 lb, 3900 lb, 120 lb, 50 x 12 oz |
|---|---|
| Additional Information | In order to minimise potential incompatibilities when converting to a new grease, all previous lubricant should be removed as much as possible prior to operation. During initial operation, relubrication intervals should be monitored closely to ensure all previous lubricant is purged., In order to minimize potential incompatibilities when converting to a new grease, all previous lubricant should be removed as much as possible prior to operation. During initial operation, relubrication intervals should be monitored closely to ensure all previous lubricant is purged. |
| Appearance | Dark and Opaque, Black, Homogenous, Free of lumps or agglomerates |
| Brookfield Viscosity at 25ºC, Spindle No. 7, 10 rpm (cP) | 80000, 128000 |
| Claims (Meets Requirements) | P&H 520 – Multipurpose Mining Lubricant, Bucyrus International SD 4713 |
| Copper Corrosion | 1B |
| Features and Benefits | Formulated to minimise distribution line plugging tendency – minimises the potential for eventual plugging of the lubricant distribution lines commonly associated with conventional greases, Readily pumpable and slumpable for good lubricant distribution – good lubricant distribution in enclosed and semi-enclosed applications, and drainable for ease of removal from surrounding guards, Specifically formulated to flush contaminants from gear and pinion flanks, and to resist accumulation in the roots of gear teeth, Highly thixotropic – exhibits a stable form at rest but becomes a fluid when agitated therefore will not run off the gear teeth. However, it will still spread easily and evenly since the gel-like lubricnant liquefies when pressure is applied, carrying away both heat and contaminants, Formulated to address environmental concerns – free of solvents, lead, antimony and Barium, Low shear, low friction durable film – even under extreme pressures, the semi-dry working film resists erosion from rain or sleet, resists peeling in dusty environments, and resists film destruction by contaminating oils and greases migrating from nearby mechanisms, Simple and economical application – can be applied via automatic dispensing throughout a wide temperature range, Excellent rust and oxidation resistance – protects the equipment and the lubricating film against the elements in severe climates, Pioneering compounding technology – flows readily in the film-forming process yet it resists ‘squeeze-out’ and clings tenaciously even to gear teeth in vertical orientation, Forms a tough durable film with ‘cushioning’ effect – even under extreme pressures and at very slow speeds, the semi-dry working film resists erosion from rain or sleet, resists peeling in dusty environments, and resists film destruction by contaminating oils and greases migrating from nearby mechanisms., Excellent rust and oxidation resistance – protects the equipment and the lubricating film against the elements in severe climates., Unique compounding technology – flows readily in the film-forming process yet it resists ‘squeeze-out’ and clings tenaciously even to gear teeth in vertical orientation., Good pumpability and set-back resistance – pumpable in heavy automatic lubricating systems and does not ‘heavy up’ over time., Formulated to address environmental concerns – it is free of solvents, lead, antimony and barium. |
| DIN Classification | OGPF 0 G-10 |
| Flash Point (ºF)] | 425, 381 |
| Flash Point (ºC) | 218, 194 |
| Four Ball Extreme Pressure (EP) Weld Point Load (kg) | 400, 800 |
| Four Ball Load Wear Index (kgf) | 88, 110, 120 |
| Freight Class | 50 |
| FZG-Test Failure Load Stage | > 12 |
| Four Ball Wear Scar Diameter (mm) | 0.65, 0.7 |
| Lubricant Composition | Mineral Oil |
| ISO Classification | L-XABEB-0 |
| National Lubricating Grease Institute (NLGI) Consistency | #00, #1, #0.5 |
| Penetration at 10mm and 77ºF (25ºC) (Worked 60 Strokes) | 400 to 430, 320 to 350, 330 to 360 |
| Lubricating Solids Particle Size (µm) | < 15 |
| Pumpability by Lincoln Ventmeter at -12 Degree Celsius (ºC) (psi) | 840 |
| Pumpability by Lincoln Ventmeter at -1ºC (psi) | 210, 500 |
| Pumpability by Lincoln Ventmeter at -7ºC (psi) | 440 |
| Timken Extreme Pressure (EP) Load (lb) | 50 |
| Specific Gravity | 0.941, 1.013, 1.014 |
| Rust Test | Pass |
| Viscosity at 100ºC (cSt) | 38.4 |
| Thickener Type | Inorganic, Lithium |
| US Steel Timken Retention Test | Pass |
| Viscosity at 40ºC (cSt) | 3000, 718, 1890 |
| Weight (lb) | 40, 400, 2200 |

