The BF90.3 S4 crusher bucket by MB Crusher is a piece of equipment designed for crushing operations on excavators, ideal for difficult conditions on construction sites. This crusher bucket was the first of its kind in the world, patented by MB in 2001, and is still one of the most effective models available today. Designed to eliminate friction during material loading and withstand the most extreme conditions, it maintains consistent performance regardless of the type of material being processed.