Castrol Aircol CM 32
Castrol Aircol CM Range is a compressor oil range of high quality lubricants based upon highly refined mineral oil, enhanced with additive technology providing excellent thermal and oxidative stability and good load carrying capacity, compared to other products in the same class. Aircol CM grades are formulated without zinc additives (ashless oils) and are recommended for the lubrication of rotary screw and reciprocating compressors. Available in ISO grades 32, 46, 68, 100 and 150.
Typical Characteristics
| Property (Method) | CM 32 | CM 46 | CM 68 | CM 100 | CM 150 |
| Appearance (Visual) | Clear & Bright | Clear & Bright | Clear & Bright | Clear & Bright | Clear & Bright |
| ISO Viscosity Grade | 32 | 46 | 68 | 100 | 150 |
| Density @ 15°C, kg/m³ (ISO 12181 / ASTM D4052) | 855 | 858 | 862 | 866 | 869 |
| Kinematic Viscosity @ 40°C, mm²/s (ISO 3104 / ASTM D445) | 32.0 | 46 | 68 | 100 | 150 |
| Kinematic Viscosity @ 100°C, mm²/s (ISO 3104 / ASTM D445) | 5.6 | 7.1 | 9.0 | 11.5 | 16.0 |
| Viscosity Index (ISO 2909 / ASTM D2270) | 100 | 100 | 100 | 95 | 95 |
| Pour Point, °C (ISO 3016 / ASTM D97) | -40 | -38 | -36 | -33 | -30 |
| Foam Sequence I — tendency / stability, ml/ml (ISO 6247 / ASTM D892) | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 | 0 / 0 |
| Water Separation @ 54°C (40/37/3), minutes (ISO 6614 / ASTM D1401) | 8 | 15 | 15 | – | – |
| Water Separation @ 82°C (40/37/3), minutes (ISO 6614 / ASTM D1401) | – | – | – | 5 | 15 |
| Flash Point — open cup, °C (ISO 2592 / ASTM D92) | 223 | 230 | 240 | 240 | 240 |
| Rust test — synthetic seawater (24 hrs) (ISO 7120 / ASTM D665B) | Pass | Pass | Pass | Pass | Pass |
| FZG Gear Scuffing test A/8.3/90, Failure Load Stage (ISO 14635-1) | > 12 | > 12 | > 12 | > 12 | > 12 |
| Oxidation Stability — Rotating Pressure Vessel test, minutes (ASTM D2272) | 1500 | 1500 | 1500 | 1500 | 1500 |
Advantages
| •Good water separation characteristics allows condensation to readily separate from the oil, minimising the risk of emulsions which could block the oil separator element. |
| •Fully inhibited against corrosion which enables protection even when operating under humid conditions. |
| •Good thermal stability, low volatility and low carbon formation reduces the risk of fire and explosion and leads to a longer operating life (up to 4000 hours). |
| •Low deposit forming tendencies extends oil change intervals and provides longer air filter life which contributes to a reduction in maintenance costs. |
| •Excellent coalescing properties mean little carry over of oil in the air stream. |
| •High load carrying to meet requirements of geared compressor units. |
Application
| •Recommended for the lubrication of rotary screw and reciprocating compressors. |
| •Meets the requirements of the DIN 51506 VDL classification for reciprocating compressors having air discharge temperatures up to 220°C. |
| •For both oil flooded and oil injected rotary screw compressors operating continuously at air discharge temperatures up to 90°C. The product has been designed to meet service drain intervals of up to 4000 hours. For intermittent or continuous operation with air discharge temperatures above 90°C the manufacturers' standard oil change periods should be used. |
| •The high FZG load carrying is designed also to meet geared compressor units. |
| •Selection of the required viscosity grade should be based upon the compressor manufacturers' recommendation. As a general guide, Aircol CM 32 and 46 are suitable for oil flooded rotary compressors, whereas Aircol CM 68, CM 100 and 150 would be selected for lubricating the crankcase and cylinders of reciprocating compressors. |
| •Aircol CM 150 is also recommended for sliding-vane compressors, or for reciprocating units at high ambient temperatures. |
| •The Aircol CM range is fully compatible with Castrol Aircol PD and MR ranges. |
Classification
| •ISO 6743-3 Compressor Oils |
| •DAA and DAB for reciprocating (piston) and drip freed rotary air compressors |
| •DAG and DAH for oil-flooded rotary screw air compressors |
| •DIN 51506 VDL |
The information contained in this data sheet is based on data considered to be accurate. No warranty is expressed or implied regarding the accuracy of this data. Product specifications and availability are subject to change without notice. Lube Control Pty Ltd accepts no responsibility for any loss or damage arising from the use of this information.
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Technical Documents
CASTROL AIRCOL CM 32
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AIRCOL CM - TDS
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Product details and specifications are for reference only and subject to change without notice. Customers must independently verify all technical data and OEM approvals directly with the manufacturer prior to purchase. We accept no liability for any errors, omissions, or damages arising from reliance on this information.