Powder Wall Friction Analysis evaluates the frictional interaction between powders and the surfaces they contact during storage or processing, such as hopper walls, chutes, or conveyors. The key parameter measured is the wall friction angle, which reflects how much resistance the powder experiences sliding against a specific wall material.

This analysis is widely applied across industries including pharmaceuticals, food, chemicals, and minerals, where knowledge of wall friction helps in selecting suitable construction materials and designing equipment that ensures smooth powder flow. By testing powders against various surface materials under controlled conditions, wall friction analysis supports optimizing hopper angles, chute linings, and processing equipment to reduce flow issues like arching, rat-holing, or inconsistent discharge.