Shaker screen or you can say shale shaker screen too, is a type of mechanical screen, aim for take solids out or separate solids from drilling fluid (mud). Usually it's made by stainless steel, polyurethane or composite frame.

Composite Material Shaker Screen

A shaker screen is a wire mesh or filter cloth used on a shaker machine to separate solids from drilling fluid in oil and gas drilling operations. The screen is vibrated so that the larger particles fall through the slots in the screen, while the finer particles are retained on the screen. The screen is typically made from corrosion-resistant materials, such as stainless steel, and is designed to withstand the harsh environments encountered during drilling operations.