Castrol AIRCOL SR 46 – 20L

Premium Synthetic Compressor Oil (ISO VG 46) for Rotary Screw & Vane Compressors

Shell Equivalent: Shell Corena S4 R 46
Mobil Equivalent: Mobil Rarus SHC 1026

Product Overview

Castrol AIRCOL SR 46 is a fully synthetic, high-performance air compressor lubricant formulated with polyalphaolefin (PAO) base oils and a specialized additive system. Designed to meet the rigorous demands of modern oil-injected rotary screw and vane air compressors, AIRCOL SR 46 offers extended drain intervals, superior thermal stability, and outstanding protection against wear, varnish, and deposit formation.

Packaged in a 20-litre drum, this oil is ideal for industrial operators seeking a high-efficiency, low-maintenance lubrication solution. Its performance is comparable to leading synthetic compressor oils such as Shell Corena S4 R 46 and Mobil Rarus SHC 1026.

Key Features & Benefits

✅ Fully Synthetic PAO Formulation

• Provides outstanding high- and low-temperature fluidity, ensuring smooth operation across a broad temperature range.

• Resists oxidation and degradation for extended oil life and reduced maintenance frequency.

✅ Extended Drain Intervals

• Outperforms mineral oils with up to 8,000 hours or more of service life (depending on operating conditions).

• Reduces downtime, servicing costs, and lubricant disposal volume.

✅ Superior Varnish and Deposit Control

• Helps maintain clean compressor internals, preventing varnish, sludge, and carbon build-up.

• Supports stable and efficient compressor operation in high-temperature conditions.

✅ Excellent Wear Protection

• Reduces metal-to-metal contact, extending the life of critical components such as rotors, bearings, and seals.

• Suitable for compressors with tight operating tolerances.

✅ Low Volatility & Reduced Oil Carryover

• Minimizes oil loss through evaporation and reduces oil deposits in downstream equipment.

• Helps maintain the efficiency of air/oil separators and downstream filters.

Applications

Castrol AIRCOL SR 46 is recommended for:
✅ Oil-injected rotary screw air compressors
✅ Oil-injected rotary vane air compressors
✅ Systems operating under continuous high load and elevated temperatures
✅ Compressors used in industrial plants, manufacturing, and process industries

It is especially suited for environments demanding:

• Extended oil life

• Low maintenance downtime

• Excellent deposit control and cleanliness

Not recommended for air compressors handling oxygen or other reactive gases.

Technical Specifications

Industry Standards & OEM Recommendations

• Meets or exceeds performance requirements for:

  • Atlas Copco, Ingersoll Rand, Kaeser, CompAir, Sullair, and more.

• Equivalent to:

  • Shell Corena S4 R 46 – high-performance synthetic compressor oil.

  • Mobil Rarus SHC 1026 – PAO-based synthetic lubricant for rotary compressors.

Packaging & Availability

✔ 20L Pail – Ideal for industrial workshops and compressor maintenance programs.
✔ Available in larger drums (e.g., 208L) for bulk use upon request.

Handling & Storage

• Storage Temperature: Keep between 5°C and 40°C, away from moisture and direct sunlight.

• Handling Advice: Use clean equipment and containers when transferring to avoid contamination.

• Shelf Life: Up to 5 years in sealed containers under recommended storage conditions.

Why Choose Castrol AIRCOL SR 46?

• ? Extended Equipment Life: Premium synthetic formulation minimizes wear and thermal stress.

• ? Reduced Operating Costs: Extended oil change intervals lower lubricant consumption and servicing costs.

• ⚙️ OEM Compatibility: Designed to meet or exceed many leading compressor manufacturer specifications.

• ? Environmentally Conscious: Longer life means less frequent oil disposal and reduced environmental impact.