Product Data Sheet Castrol MAGNA RD 320Industrial Gear & Circulating Oil – Premium Rust & Oxidation‑Resistant Fluid Product Description…
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Castrol MAGNA RD 320
Industrial Gear & Circulating Oil – Premium Rust & Oxidation‑Resistant Fluid
Castrol MAGNA RD 320 is a premium industrial gear and circulating oil designed to provide excellent oxidation stability, corrosion protection and wide‑ranging performance in circulating, plain bearing and enclosed gear applications. Its Rust & Oxidation‑Resistant (RD) formulation extends oil life, reduces deposits, and improves equipment reliability in heavy industrial and manufacturing environments.
This oil is formulated with high‑quality base stocks and carefully selected additives to ensure dependable long‑term operation in gearboxes, plain bearings, and industrial circulating systems where ISO VG 320 viscosity grade oils are specified.
Industrial gearboxes and reducers
Circulating oil systems
Plain bearings and journal bearing applications
Heavy duty enclosed gear drives
Machine tool lubrication points requiring ISO VG 320 gear/circulating oil
Always follow equipment manufacturer recommendations regarding viscosities and service conditions.
Excellent oxidation stability for extended oil life and reduced deposits
Superior rust and corrosion protection in humid and wet environments
Good load‑carrying performance in circulating and gear applications
Enhanced thermal stability, helping resist high temperature breakdown
Excellent water separation and demulsibility
Maintains reliability in varied industrial applications
| Property | Typical Value | Test Method |
|---|---|---|
| ISO Viscosity Grade | 320 | ISO 3448 |
| Kinematic Viscosity @ 40°C (cSt) | 320 | ASTM D445 |
| Kinematic Viscosity @ 100°C (cSt) | 24.6 | ASTM D445 |
| Viscosity Index | 96 | ASTM D2270 |
| Density @ 15°C (kg/L) | 0.89 | ASTM D4052 |
| Flash Point (°C) | 250 | ASTM D92 |
| Pour Point (°C) | ‑12 | ASTM D97 |
| Rust Test | Pass | ASTM D665 |
While industrial gear and circulating oils typically do not carry engine‑like OEM approvals, Castrol MAGNA RD 320 meets common industrial requirements for high‑performance ISO VG 320 oils used in:
AGMA (American Gear Manufacturers Association) gear oil applications at appropriate viscosity grades
Industrial circulating systems calling for rust and oxidation resistant fluids
Plain bearing lubrication in heavy industrial duty
Always verify suitability with the equipment manufacturer.
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