The Aerospace Industry is a specialized field with a wide variety of caster needs ranging from our 3000 Series to 9000 Series depending on the specific application. Projects might require a 3” polyurethane or thermoplastic caster (MIR) with a varies combination of rigid/ fixed, swivel and swivel with brake configurations which are typically applied onto equipment racks, robotics, and light duty to medium duty transport materials. However, for those Heavy-Duty and Super-Heavy Duty applications, we relied on our 6600, 6700, 6800, 6900, 7100, 7200, 7500, and 7600 Series in Polyurethane, Heavy Duty Plastic, Phenolic, Pneumatic, and Air-Flat-Free wheels in 6”, 8”, and 10” diameters that can exceed 4,000 pounds in load capacity.