Since the 1970s, Cowan has distinguished itself in the market for its extensive equipment yard. The purchase of large equipment packages was second nature to Walduck Wanderley, who always strove to keep his fleet in perfect state of repair. The excellence in the preventative maintenance is still a priority in Cowan. Even in the 1990s, a time when the company was more concentrated on concessions, the company’s team of mechanics never stopped working on the machines, keeping them as good as new. When there is a need to replace some obsolete or less productive technology, the heads of the company do all thy can to pay with Cowan’s own resources, thus avoiding running debts.
| Equipment | Units | |
| Track-type tractor | 40 | |
| Wheel tractors | 26 | |
| Motor scraper | 41 | |
| Digger | 22 | |
| Retro excavator | 13 | |
| Motor grader | 26 | |
| Soil compactor | 58 | |
| Wheels loader | 38 | |
| Crane | 22 | |
| Drill | 12 | |
| Asphalt Finisher | 6 | |
| Soil /Asphalt machines | 6 | |
| Concrete Plant | 7 | |
| Off-road truck | 26 | |
| Tipper trucks | 284 | |
| Mixer trucks | 38 | |
| Trucks | 191 | |
| Gravel grinder | 6 |
|
| Aircraft | 4 | |
| Other | 178 | |
| Total | 1044 |