All SPYDERCRANES are equipped with Continuous Rotation Slip Valves at the crane turntable. This enables the crane to turn in either direction continuously. Always insist on 360 degree continuous rotation.

Most cranes use a set of hoses to allow the crane to pivot while connected to the hydraulic pump and controls. This means that when the crane rotates left or right, it draws the hoses with it, until they reach the end of their length. Then the crane has to go in the opposite direction.

All crane functions are hydraulically powered. A transmission-mounted oil pump, driven by the truck's PTO, powers the slewing and hoisting motors, the telescoping and derricking cylinders, and the jack cylinder extensions.