Sioux Automation Center 5300 series spreader is designed to be more tolerant for managing foreign objects while protecting driveline, undercarriage and apron chain. The company says this machine allows for easier lubricating and improved strength by having grease banks and remote zerks along with a better hitch design and a high capacity pintle hitch with safety chains. The box interior is 3/4-inch plastic with stainless steel retainers.