Bidirectional rotary gates are mainly used in reservoirs with high lift and can be equipped with hand cranked winches and hand cranked hoisting machines. Bidirectional rotary gate fixed double # 200-10000-1500 150 opening and closing force 1T, opening and closing stroke 0.6M Bidirectional rotary gate fixed double # 300-10000-1500 189 opening and closing force 1T, opening and closing stroke 0.673M Bidirectional rotary gate fixed double # 400-10000-1500 346 opening and closing force 1T, opening and closing stroke 0.89M Bidirectional rotary gate fixed double # 500-1500-2000 460 opening and closing force 2T, opening and closing stroke 1.89M Bidirectional rotary gate fixed double # 600-2500-3000 655 opening and closing force 2T, opening and closing stroke 1.89M. Zhongli's leading products include QL-0.3T-200T single lifting point and double lifting point screw type opening and closing machines. It has screw opening and closing machines such as manual push with lock, closed hand cranked, and dual-purpose flashlight. QPQ, QPK5T-200T fixed, mobile, single and double lifting point winch hoist; The hoist can be equipped with a remote control height display according to customer requirements. The gates include PZ, PGZ type cast iron gates, cast iron inlaid copper gates, stainless steel gates, insert plate gates, flap gates (tide gates), barrier gates, steel structure gates (arc gates, flat sliding gates, flat fixed wheel gates), with specifications ranging from 0.2 × 0.2-10 × 10 meters, including bidirectional water stop gates, reverse water stop gates, deep-water gates, high-pressure sealed box gates, and various rubber water stops. The product has been sold to more than 20 provinces, municipalities and autonomous regions across the country. Widely used in water conservancy projects such as drainage and irrigation, hydropower stations, rivers, aquaculture, reservoirs, and sewage treatment.