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Product Data
castrol.com/GPS
800 255 4417
May 2025
GPS
Castrol
®
Magna
®
RD
Castrol Magna RD Range Oils consist of selected mineral oils specially
compounded with lubricity fortifiers, corrosion inhibitors and tackiness
additives.
Extreme Pressure Requirements
Rock drill splines are subject to sliding action under intense pressure. To
prevent metal-to-metal contact, a lubricant must have outstanding extreme
pressure characteristics. Exceptionally high extreme pressure ratio of
300,000 pounds per square inch is one of the many reasons that Castrol
Magna RD is so effective in reducing wear.
Tackiness
Castrol Magna RD contains a tackiness agent that provides excellent
adhesive characteristics to drill surfaces.
Rust and Corrosion Protection
Castrol Magna RD provides rust and corrosion protection of all internal parts of the drills, even during
extended idle periods. Serious rust and corrosion is also prevented in the presence of heavily moisture-laden
compressed air. Castrol Magna RD has a balanced additive package that provides good oxidation stability to
minimize oxidation and gumming of any parts exposed to high temperatures.
Features and Benefits
Design features and benefits of the Castrol range of high quality rock drill oils include:
• High film strength
• Reduced friction
• Provide a suitable seal between piston and cylinder
• Reduced wear
• Helps maintain maximum percussion efficiency
• Preferentially adhere to metal surfaces and resist blow-off
• Improved protection wear against wear caused by poor lubrication
• Helps maintain operating speed
• Reduced wear, allowing operation in conditions of high or low temperatures
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