Jumbo and Jumbo HD are built for continuous duty in the hardest conditions of use, focused on power consumption as well as maintenance, operating cost and ease of installation. A gearless direct-drive coupling between the airend and motor removes the wear and transmission losses of a gear drive, and the low-speed 2950 RPM larger airends are more efficient than high-speed equivalents — lower speed means better efficiency, durability, and reduced air cost with less wear. A dedicated airend is matched to each machine at its rated pressure across the full range, from a 15 HP entry unit to a 350 HP flagship.
