U-shaped steel U-shaped steel bracket bracket Specifications U-shaped steel frame composition U-shaped steel brackets Products U-shaped steel stent is a cross-sectional shape like the English letter "U" steel. States produced U-shaped steel cross-sectional shape, geometric parameters and material and so different, now China's production of U-shaped steel Model main U18, U25, U29, U36 four. U18 and U25 which belong waist positioning; U29, U36 genus ear positioning. Due to the low carrying capacity of U18, now rarely produce. zmjt15 U-shaped steel bracket with a high setting load, support strength, easy to install, easy to deformation, etc., so often used in the manufacture of the roadway retractable metal stents, as mine tunnel, the mine tunnel secondary support, and the support of the tunnel mountains Supporting other purposes. The use of U-shaped steel brackets effectively reduce the incidence of roof fall, spalling and other accidents, safe and reliable, improve mine ventilation system stability. Selection U-shaped steel retractable stand, better solve the problem of tunneling support. U steel support structures 1. top beam. Arc arched roof beams, the number depending on the size of the roadway, stand by force, different conditions of carriage have a multi-section of the points. 2. The column legs. There are three kinds of forms of column legs, the upper part of a circular arc, the lower part of straight line segments; second is all curved, and only one radius of curvature; third is all curved, with two curvatures radius. Column leg below the bottom plate is welded depending on the size of hard and soft base, the base may be; 3 connections. Connector is a holding device between the bracket Festival and the Festival can play a role in connecting section between two steel can also be connected to the joint portion of the compression, providing preload, having friction between the U-shaped steel, so as to ensure arch support has some resistance and some may work shrinkage. The frame between lever. The role of inter-frame drawbar is to enhance the overall relative stability of the stent, the stent from the longitudinal join together to form a whole. 5. backing material. The backing material is a filler material between the U-shaped steel brackets and rock, with the aim is to make the U-shaped steel brackets and rock close contact, to improve the situation by force stand to improve its carrying capacity and maintain the stability of the surrounding rock. U-shaped steel brackets Features 1, U-shaped steel brackets withstand pressure, supporting a long time, it is easy to install easy deformation characteristics. 2, U-shaped steel bracket with a scalable and reliable carrying capacity than other rigid support, adapt soft rock load and deformation. 3, U-shaped steel bracket section utilization, convenient support stand back, small amount of maintenance. 4, U3 steel support recycling reuse rate, reduce prop use, environmental benefits are clear. The product has been exported to many countries, the United States, France, Canada, Indonesia, Russia, Vietnam, Australia, South Korea, Iran, etc., unanimous praise. Because production batch, the specific model is different, the above picture for reference only, please contact our sales staff will be specifically verified. National unity free sales Tel: 400-086-0537