Description: Custom-built automatic spray painting system of cylindrical parts is offered for automatic spray painting of shells. The shells are of two different diameter and length. Painting system consists of rotating drum with turn-table at the top fitted with 40 stations of shell holding fixtures which revolve on their own axis in addition to their rotation around the axis of the table (planetary motion). Turntable is driven by electric motor with variator to vary speed of turntable from 0.1 to 1 RPM and job rotation from 10-100 RPM. Automatic spray gun is fitted on reciprocator (robot) with vertical up/down and to and fro motion for uniform coating of paint all over the shells. The reciprocator movement is through hydraulic power pack for smooth movement without jerking and stroke adjustment is through proximity switches. Paint is supplied from pressure feed containers. As a special case all electrical items are flame proof. Oversprayed paint is extracted through dry back spray booth. Production rate is 2000 shells/8 hr shift.
