Specially for high load application, maximum thrust to 50 tons, with heavy ball screw and high efficiency, high frequency of linear motion, with brake, limit switch, the perfect combination of thrust overload limiter, widely used in ports, steel, mining and other machinery. In the case of power-off through the brake to keep the effective load . Equipped with manual release, the built-in CAM limit switch, external mechanical limit switch, potentiometer, dust cover and so on. Continuous work in half an hour. Temperature range : -15 ℃ to 50 ℃. Protection grade: IP44, IP55.