A wall putty machine is a specialized piece of equipment that is used to apply putty to walls and other surfaces. It is designed to evenly spread the material and provide a smooth finish. The machine typically consists of a hopper that holds the putty, a motor that drives a paddle or roller, and a control system to regulate the amount of putty that is applied. The machine is used to fill in cracks, holes, and other imperfections in walls and other surfaces.