Aircol CM 68 grades are ashless oils recommended for the lubrication of rotors, bearings and gears in rotary compressors, especially the oil flooded screw type with lubricant drain cycles of up to 2000 hours under normal use. Normal use in screw type compressors is defined by a maximum air discharge temperature =\/< 100\u00b0C as defined by ISO 6743-3:2003. Aircol CM 68 can be used for either normal or severe duty lubrication of reciprocating and rotary drip-feed air compressors, as defined by ISO 6743. Normal duty is described as:- discharge temperatures =\/< 165\u00b0C; differential pressures =\/< 2.5 MPa (25 bar); discharge pressures =\/< 7.0 MPa (70 bar). Severe Duty is described as:- discharge temperatures > 165\u00b0C; differential pressures > 2.5 MPa (25 bar); discharge pressures > 7.0 MPa (70 bar). Aircol CM 68 compressor oils exhibit low carbon forming tendencies and meet the requirements of the DIN 51506 VDL classification for reciprocating compressors having air discharge temperatures up to 220\u00b0C. Selection of the required viscosity grade should be based upon the compressor manufacturers\u2019 recommendation. However as a general guide Aircol CM 68 would be selected for lubricating the crankcase and cylinders of reciprocating compressors. The Aircol CM 68 is fully compatible with nitrile, silicone and fluropolymer seal materials. Aircol CM 68 is classified as follows: DIN 51506 classification \u2013 VDL; ISO 6743\/3 \u2013 DAA and DAB for reciprocating air compressors, DAG for rotary air compressors. Aircol CM 68 meets the requirements (for appropriate viscosity grade) of major compressor manufacturers such as Atlas Copco, Champion, Sullair, Compair\/Broomwade, Ingersoll-Rand, Kaeser and Bauer.<\/p>\n
If you have any questions, please contact Procare Technical Helpdesk<\/p>\n
Castrol Aircol\u2122 PD oils are a range of compressor lubricants, based upon highly refined mineral oils, which are intended for the lubrication of both reciprocating and rotary air compressors. <\/p>\n<\/div><\/div>\n<\/p><\/div>\n
| Product specifications :<\/td>\n | <\/td>\n | CASTROL Aircol CM 68<\/td>\n<\/tr>\n<\/thead>\n |
| Density @ 15\u00b0C \/ 59\u00b0F\u00a0kg\/m\u00b3<\/td>\n | ISO 12185 \/ ASTM D4052<\/td>\n | 880<\/td>\n<\/tr>\n |
| Kinematic Viscosity @ 40\u00b0C \/ 104\u00b0F\u00a0mm\u00b2\/s<\/td>\n | ISO 3104 \/ ASTM D445<\/td>\n | 68<\/td>\n<\/tr>\n |
| Kinematic Viscosity @ 100\u00b0C \/ 212\u00b0F\u00a0mm\u00b2\/s<\/td>\n | ISO 3104 \/ ASTM D445<\/td>\n | 8.6<\/td>\n<\/tr>\n |
| Viscosity Index<\/td>\n | ISO 2909 \/ ASTM D2270<\/td>\n | 100<\/td>\n<\/tr>\n |
| Foam Sequence I \u2013 tendency \/ stability\u00a0ml\/ml<\/td>\n | ISO 6247 \/ ASTM D892<\/td>\n | 30\/0<\/td>\n<\/tr>\n |
| Flash Point \u2013 open cup method\u00a0\u00b0C\/\u00b0F<\/td>\n | ISO 2592 \/ ASTM D92<\/td>\n | 232\/ 450<\/td>\n<\/tr>\n |
| Pour Point\u00a0\u00b0C\/\u00b0F<\/td>\n | ISO 3016 \/ ASTM D97<\/td>\n | -21\/-6<\/td>\n<\/tr>\n |
| Water Separation @ 54\u00b0C \/ 129\u00b0F (40\/37\/3) min<\/td>\n | ISO 6614 \/ ASTM D1401<\/td>\n | 15<\/td>\n<\/tr>\n |
| Water Separation @ 54\u00b0C \/ 129\u00b0F (40\/37\/3) min<\/td>\n | ISO 6614 \/ ASTM D1401<\/td>\n | \u2013<\/td>\n<\/tr>\n |
| Rust test \u2013 synthetic seawater (24 hrs)<\/td>\n | ISO 7120 \/ ASTM D665B<\/td>\n | Pass<\/td>\n<\/tr>\n |
| Carbon residue \u2013 Conradson test \u2013 after air ageing\u00a0%wt<\/td>\n | DIN 51352-2<\/td>\n | 0.7<\/td>\n<\/tr>\n |
| Oxidation Stability \u2013 Rotating Pressure Vessel test\u00a0min<\/td>\n | ASTM D2272 \/ IP 229<\/td>\n | 270<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n \u00a0<\/p>\n<\/p><\/div>\n Additional Information<\/h3>\nCastrol Aircol CM 68 compressor oils are available in a wide range of viscosities, to suit different types of compressors operating in varying ambient temperatures. Selection of the required viscosity grade should be based upon the compressor manufacturers recommendations for the appropriate ambient temperature range, which will have been chosen to provide the best compromise between maintaining a fluid film between the working surface and minimizing the amount of power absorbed by Castrol Aircol CM 68 fluid friction in this oil film. <\/p>\n<\/div><\/div>\n |