Description
Product Description
Shell Spirax S4 CX 50 is a premium heavy-duty transmission and final drive oil formulated with high-quality mineral base oils and advanced additive technology for off-highway equipment operating under severe conditions. It is specifically designed to provide outstanding protection for powershift transmissions, final drives, oil-immersed (wet) brakes, and selected hydraulic systems used in construction, mining, quarrying, and earthmoving machinery. It meets the demanding requirements of modern equipment manufactured by Caterpillar, Komatsu, Komatsu-Dresser, Eaton, Eaton Fuller, ZF, Dana, and Rockwell.
The shear-stable SAE 50 formulation delivers exceptional wear protection for heavily loaded components while maintaining stable friction characteristics for smooth clutch engagement and quiet wet brake performance.
Features and Benefits
Excellent Powershift Transmission Performance
Provides:
- Smooth gear engagement
- Consistent clutch friction characteristics
- Reduced clutch slippage
- Reliable transmission operation
- Extended transmission life
Outstanding Final Drive Protection
The shear-stable SAE 50 viscosity provides:
- Excellent oil film strength
- Maximum protection for heavily loaded gears
- Reduced gear wear
- Protection under shock loading
- Extended final drive life
Superior Wet Brake Performance
Optimised friction characteristics help provide:
- Quiet brake operation
- Reduced brake chatter
- Consistent braking performance
- Improved operator comfort
Excellent Oxidation & Thermal Stability
Advanced oxidation inhibitors help:
- Resist oil degradation
- Reduce sludge and deposit formation
- Protect against corrosion
- Extend oil service life
Reliable Wear Protection
The advanced anti-wear additive package protects:
- Gears
- Bearings
- Bronze friction discs
- Final drives
- Transmission components
against wear under severe operating conditions.
Applications
Shell Spirax S4 CX 50 is recommended for:
Off-Highway Equipment
- Bulldozers
- Wheel loaders
- Excavators
- Motor graders
- Scrapers
- Mining trucks
- Quarry equipment
Transmission Systems
- Powershift transmissions
- Torque converters
- Final drives
- Differential units
Brake Systems
- Oil-immersed (wet) brakes
- Wet clutch systems
Suitable for equipment manufactured by:
- Caterpillar
- Komatsu
- Komatsu-Dresser
- Eaton
- Eaton Fuller
- ZF
- Dana
- Rockwell
Specifications & Approvals
Meets or exceeds:
- Caterpillar TO-4
- Suitable for applications requiring Allison C-4 type fluids
Typical Physical Characteristics
| Property | Typical Value | Test Method |
|---|---|---|
| SAE Viscosity Grade | 50 | SAE J300 |
| Base Oil Type | Mineral Oil | — |
| Density @ 15°C | 910 kg/m³ | ISO 12185 |
| Kinematic Viscosity @ 40°C | 217.4 mm²/s | ISO 3104 |
| Kinematic Viscosity @ 100°C | 19.0 mm²/s | ISO 3104 |
| Flash Point (COC) | 205°C | ISO 2592 |
| Pour Point | -18°C | ISO 3016 |
Typical values are subject to normal manufacturing tolerances.
Performance Characteristics
- Premium off-highway transmission and final drive oil
- SAE 50 heavy-duty viscosity grade
- Caterpillar TO-4 performance
- Excellent powershift transmission protection
- Outstanding final drive protection
- Superior wet brake performance
- Excellent anti-wear protection
- High oxidation stability
- Good corrosion resistance
- Long equipment service life
Storage & Handling
- Store in original sealed containers.
- Protect from moisture, dirt, and dust.
- Store in a cool, dry place away from direct sunlight.
- Keep containers tightly closed when not in use.
Health & Safety
When used as intended and handled in accordance with good industrial hygiene practices, Shell Spirax S4 CX 50 is not expected to present significant health or environmental hazards. Refer to the latest Safety Data Sheet (SDS) for detailed handling, storage, and disposal information.
