Description
Castrol Alphasyn™ EP 320
Product Description
Castrol Alphasyn™ EP 320 is a high-performance fully synthetic industrial gear oil formulated with PAO (Polyalphaolefin) base oils and advanced sulphur/phosphorus Extreme Pressure (EP) additive technology. It is designed for enclosed gear systems, including heavily loaded and shock-loaded gears and bearings where exceptional EP performance and micropitting resistance are required.
Key Features & Benefits
- Outstanding load-carrying capacity and EP performance
- Excellent micropitting resistance
- Superior thermal and oxidation stability
- Wide operating temperature range
- Excellent protection against gear and bearing wear
- Good water separation and corrosion protection
- Rapid air release and foam control
- Extended oil service life compared with conventional mineral gear oils
- Compatible with nitrile, silicone, and fluoropolymer seal materials.
Typical Applications
- Heavy-duty enclosed industrial gearboxes
- Shock-loaded gear systems
- Mining and quarrying equipment
- Marine gear applications
- Paper manufacturing machinery
- Offshore drilling transmissions and top-drive systems
- Industrial bearings requiring EP protection
- Applications where micropitting resistance is critical
Specifications & Approvals
Meets or exceeds:
- DIN 51517 Part 3 (CLP)
- AGMA 9005-E02
- AIST 224
- Flender
- David Brown Type E.
Typical Physical Characteristics
| Property | Test Method | Value |
|---|---|---|
| ISO Viscosity Grade | - | 320 |
| Density @ 15°C | ASTM D4052 | 860 kg/m³ |
| Kinematic Viscosity @ 40°C | ASTM D445 | 326 mm²/s |
| Kinematic Viscosity @ 100°C | ASTM D445 | 35.5 mm²/s |
| Viscosity Index | ASTM D2270 | 155 |
| Pour Point | ASTM D97 | -45°C |
| Flash Point (COC) | ASTM D92 | 240°C |
| Foam Sequence I | ASTM D892 | 20/0 ml |
| Rust Test (Synthetic Seawater) | ASTM D665B | Pass |
| FZG Gear Scuffing Test A/8.3/90 | ISO 14635-1 | >14 |
| FZG Gear Scuffing Test A/16.6/90 | ISO 14635-1 | >14 |
| FZG Micropitting Test | FVA 54-7 | Stage 10 (High) |
| FE-8 Bearing Wear Test | DIN 51819-3 | <5 mg |
Performance Advantages
- Helps extend gearbox and bearing life
- Minimizes wear under heavy and shock loading conditions
- Reduces risk of micropitting damage
- Supports longer oil drain intervals
- Improves equipment reliability and uptime
- Suitable for severe industrial environments
Storage & Handling
Store indoors in a clean, dry environment away from direct sunlight and moisture. Keep containers tightly sealed when not in use to prevent contamination.
Health & Safety
Refer to the latest Safety Data Sheet (SDS) before use. Avoid prolonged skin contact and dispose of used lubricant in accordance with local regulations. The product is intended for use as a gear lubricant.
