The Grand Slam secondary horizontal shaft impactor features a new grinding path and a new apron adjustment system. This impactor series uses high-chrome metallurgy to significantly increase wear life of machine components, reducing metal replacement costs. Used for a wide variety of industrial applications, Grand Slam impactors are engineered to reduce material size more efficiently with maximum up time. The new Crush Plus grinding path system on these units creates a third crushing chamber to maximize one-pass product yield, minimize oversize, improve material soundness and produce highly cubical product.