A belt line installation device is an apparatus designed to allow for the installation of two cranes to be mounted on a common piece of framework for use in mining. The first crane connects to the device and is installed upside down and on the left side of a conveyer where it can be used to install bottom mounted hardware on the conveyor. The second crane is installed on the top center of the invention to install top mounted hardware. This second crane also assists in loading the first crane and associated bottom mounted hardware from the pallet of hardware. The device is mounted on any quick attach equipment, such as a tele-handler or skid steer. Each crane can be powered by a PTO takeoff from nearby equipment or can be powered by a 12-volt hydraulic power pack. Each crane will be provided with wireless or pendant remote controls and a dead man switch.