Superior Caster Design to support workplace ergonomics. For more than 75 years, Darcor has been the leading global provider of ergonomic caster solutions. Darcor’s superior caster design creates best in class rating for push/pull forces that support workplace ergonomics with a vision of improving employee health, safety and productivity. Darcor provides caster solutions for industrial, material handling, medical, floor cleaning and entertainment environments. Darcor also creates custom caster solutions engineered to suit unique applications.