The example automated roughneck system herein includes a base module, a removable spinner module for spinning pipe to connect or disconnect drill pipes at threaded interfaces, and a removable torque module for torqueing drill pipe. The spinner module is adapted to automatically self-center itself around a drill pipe and adjust to a varied range of drill pipe diameters. A centering device of the torque module automatically senses drill pipe of varied diameters and moves around the drill pipe until the spinner and torque modules are centered on the drill pipe. An extension module of the system is connected between the base module and the spinner and torque modules. A plurality of arms thereon are adapted to be extended and retracted from/to the extension module to move the spinner and torque modules toward and away from the base module. Each of these modules are remotely controlled.
