Kelly Tractor Co. unveiled the new Tier-4 compliant A150 high-performance hydraulic drilling rig early this year at ConExpo 2014. Kelly Tractor Co. Tier 4 A150Built in collaboration with IMT and Caterpillar OEM Solutions Group, the A150 includes a Caterpillar C7.1 ACERT engine with 217 horsepower and developing 118,000 foot-pounds of rotary torque. The A150 has a low transport height of 12 feet and an operating weight of 99,210 pounds. For details, visit