The compact HydroBurst 100XT static pipe bursting system from HammerHead Trenchless Equipment provides 99 tons of pulling force. With a tethered remote control, the streamlined unit pays out rod quickly due to its automated rod-spinning assembly and the design of its hydraulic cylinders. The unit weighs 3,200 pounds and is 39 inches high by 30 inches wide. It can replace pipes up to 16 inches in diameter, yet is compact enough to use with pipes as small as 4 inches. The water-cooled PP4500 hydraulic power pack with a 72.7 hp Kubota engine pumps hydraulic fluid at up to 43.5 gpm and 4,500 psi. In 50-ton mode the unit directs all hydraulic fluid to two of the cylinders, which then can move twice as fast as in 100-ton mode. 800/331-6653; www.hammerheadtrenchless.com.