On average, Morbark grates have more holes than competitive grates. More holes in your grate = higher production rates, lower fuel consumption, and greater operating efficiency Combined with Morbark quality, durability, and value, our grates will help to boost your bottom line and improve your product production! Morbark grates are precision-cut and -formed for the industry-leading dependability you expect from Morbark! We offer AR400 and AR450 grates for your industrial equipment! Morbark grates are available in a wide variety of shapes, sizes, and configurations. ASk which grates are right for your equipment and application needs.