Description
Castrol Alpha EP 150 is a premium industrial gear lubricant based on polyalphaolefin (PAO) base fluids combined with advanced sulphur/phosphorus extreme pressure (EP) additives to provide strong load‑carrying capacity, outstanding thermal and oxidative stability, and protection against wear and scuffing under heavy‑duty conditions. It is designed for use in heavily loaded enclosed gear drives, such as those found in mining, offshore drilling, marine drives, paper and steel mills, and other industrial applications where shock loading and high operating temperatures are encountered.
This product is typically stocked in 208 L steel drums for large machinery and plant gear lubrication where frequent top‑offs or bulk oil changes are needed.
Key Features & Specifications
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ISO Viscosity Grade: 150 (medium‑high viscosity for industrial gears).
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CLP Classification (DIN 51517 Part 3): Meets industrial gear oil standards with EP performance.
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Extreme Pressure Additives: Provides robust wear and scuffing protection under heavy loads.
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High Thermal & Oxidative Stability: Helps maintain performance and extend lubricant life in high‑temperature environments.
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Wide Compatibility: Suitable for many gear systems requiring CLP/EP gear oil; compatible with common seal materials.
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Applications: Enclosed industrial gearboxes, draw works transmissions, heavy‑duty drives, and other EP gear applications.
Typical Uses
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Industrial gearboxes subjected to heavy loads and shock loading.
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Marine and offshore equipment like top drives and winches.
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Mining, paper, and steel mill machinery needing reliable lubrication under extreme conditions




