Gate hoist lifting power of the main parameters, gates open or decrease (closed) traction or pressure is applied, the opening and closing stroke and opening and closing speed. When you select the type of hoist winch hoist, the main consideration of the following factors: the gate form, sealing size and operating conditions, the same number and type of gate opening set fan gate count, the number of ear gate lifting, hoisting force, hoist stroke and opening and closing speed screw hoist, hoist power status, locations of spatial scales and other operating requirements. Screw hoist can be divided into: flashlight dual screw hoist hand push screw hoist, hoist side shaking, such as several manual screw hoist directly or via a threaded rod guided slide connecting rod connected with the shutter door leaf hoist, mobile screw up and down to open and close the gate of machinery. Supported within the bearing nut screw, nut and drive mechanism (bevel gear or worm gear) fixed to the support frame. Powered or hand crank drag human transmission, drive the bearing nut rotates, the screw lift gate to open and close. Screw the pressure gate hoist tension member, need stability under pressure to force the gate should fall computing struts. Simple screw hoist structure, durable, low cost, suitable for small plane gate and gate, its lifting power is generally less 200kN. 500kN, 750kN high capacity screw hoist has been produced for the dive hole flat gate and radial gate operation. Mobile hoist moves along a specially laid track gate hoist and installation parameters (18) move, and can lift several successive rows or columns arranged gate machinery and equipment. Mobile hoist type variety, there are: ① in the direction of movement of the spreader into a one-way and two-way mobile hoist mobile hoist. The former is only about spreader line moves along the dam; the latter is not only about moving along the axis of the dam, but also to the upstream and downstream directions. ② Press to move the frame conditions into mobile hoist trolley with gate-shaped mobile hoist (also known as the gantry crane, gantry crane). The former main hoist mechanism is provided at the bottom of the wheel plane loaded walk framed trolley; the latter's main hoist lifting mechanism is provided on wheels equipped with walking door-shaped frame. Unidirectional mobile hoist the main lifting mechanism fastened directly on a plane or a car door-shaped frame; two-way mobile hoist the main lifting mechanism set up in the trolley or door frame on a plane-shaped small car, trolley traveling along the track direction of the moving carriage or a direction perpendicular to the gate-shaped frame. Also commonly known as a two-way mobile trolley or gate-shaped frame for a large frame. Mobile hoist trolley usually walk on top of the above Gate Slot plane or flat concrete bent, moving gantry hoist only to walk on top of the plane Gate Slot. Gantry crane gantry legs and sometimes in order to set up a rotary arm hook lifting other equipment, so as to constitute a gate-shaped multipurpose mobile hoist. China has produced a mobile hoist, the main force of lifting spreader Inception 5000kN, lift is 140m. Soviet Sayan Shushenskaya hydropower Shu mobile hoist Kai door Lida 7100kN, lift to 17.5m. Winch hoist _ rich students (certified) _ Fuzhou hoist provided by the Guangzhou Environmental Protection Engineering Co., rich students. Environmental Protection Engineering Co., Ltd. Guangzhou Fu students (www.fushengyuan.com) is a leader in Guangzhou, environmental monitoring equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Students in rich leadership with the staff warmly welcome all inquiries negotiations to create a better future for rich students.