Castrol Alphasyn GS 220
Castrol Alphasyn GS 220 is a fully synthetic gear oil based on carefully selected polyglycol base oils and high thermal stability anti-oxidation, anti-rust, and extreme pressure additives. Alphasyn GS has superior properties compared to mineral-based gear oils, making it suitable for lubricating gears and bearings at high temperatures, especially in large mills and rolling machines.
PRODUCT DETAILS
Castrol Alphasyn GS 220 Gear Oil – Fully Synthetic for High Performance and Durability
Description: Castrol Alphasyn GS is a fully synthetic gear oil based on carefully selected polyglycol base oils and high thermal stability anti-oxidation, anti-rust, and extreme pressure additives. Alphasyn GS has superior properties compared to mineral-based gear oils, making it suitable for lubricating gears and bearings at high temperatures, especially in large mills and rolling machines.
Application: Alphasyn GS is particularly effective in the operation of worm gears at low speeds and high torques, helping to reduce pitting wear and extend the life of tin bronze worm gears. Alphasyn GS also helps extend oil service life, with high anti-oxidation capabilities at operating temperatures. Some equipment manufacturers even use Alphasyn GS throughout the equipment’s lifespan.
Benefits:
- Reduces energy loss due to friction, saving energy and reducing the temperature of the oil bath.
- High thermal stability, leading to minimal sludge and solid residue formation.
- Higher load-carrying capacity and wear resistance compared to conventional mineral-based oils.
- High Viscosity Index and low pour point, making it suitable for a wide operating temperature range (oil bath temperature from -30°C to 150°C, occasional operating temperatures up to 220°C).
Typical Characteristics:
| Property | Method | Unit | GS 220 | GS 320 | GS 460 | GS 680 |
|---|---|---|---|---|---|---|
| Appearance | Visual | Clear | Clear | Clear | Clear | |
| Specific Gravity at 15°C | ASTM D4052 | g/ml | 1.02 | 1.02 | 1.02 | 1.02 |
| Kinematic Viscosity at 40°C | DIN 51562-1 | mm²/s | 223 | 318 | 448 | 680 |
| Kinematic Viscosity at 100°C | DIN 51562-1 | mm²/s | 36.3 | 52.0 | 72.7 | 101 |
| Viscosity Index | ASTM 2270 | 229 | 242 | 244 | 244 | |
| Pour Point | ISO 3016 | °C | -45 | -42 | -39 | -36 |
| Open Flash Point | ASTM D92 | °C | 280 | 280 | 280 | 290 |
| Rust Test, Method A | ASTM D665A | Pass | Pass | Pass | Pass | |
| Copper Corrosion | ASTM D130 | 1A | 1A | 1A | 1A | |
| Timken OK Load | ASTM D2782 | kg/lb | 34/75 | 34/75 | 34/75 | 34/75 |
| 4-Ball Wear Scar Diameter (1 hour/40kg) | ASTM D2783 | mm | 0.40 | 0.35 | 0.35 | 0.35 |
| FZG Gear Test, Failure Load Stage A/8.3/90 | ISO 14635-1 | FLS | >12 | >12 | >12 | >12 |
| FZG Gear Test, Failure Load Stage A/16.6/90 | ISO 14635-1 (modified) | FLS | >12 | >12 | >12 | >12 |