Claw crane

A claw crane consists of many parts, but the basic components are a printed circuit board (PCB), power supply, currency detector, credit/timer display, joystick, wiring harness / loom, gantry assembly, coil and claw assembly. The claw has three fingers if it is a traditional design or two fingers if it is the Asian-style "UFO" machines. Rarely, there are four.

Claw machine gantry assemblies typically consist of two main moving carriages. The first controls the movement along the forward and back axis. This is the long moving set of rails. On these rails sits the gantry carriage, or gantry box. This is the actual component the claw is suspended from, and it contains the motors for sideways movement, alongside the motor and pulleys for the movement of the claw on the Y-axis. These gantries also contain a series of small electronic switches, which are responsible for letting the main PCB know when the carriages have reached their limits of movement, as well as when the claw is at the top or bottom.