Roadway retractable guard support Drift retractable guard support Drift Products retractable protective frame composition roadway characteristics retractable guard support Drift retractable guard support with high setting load, support strength, easy to install, easy to deform etc., so commonly used in the manufacture of the roadway retractable metal stents, as mine tunnel, the mine tunnel secondary support, and tunnel through a mountain of Brace and other purposes. Use U-type retractable guard support Drift 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. zmjt15 roadway retractable guard support product composition 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 filled with material protective retractable roadway support and wall rock between the aim is to make the roadway retractable guard support in close contact with the surrounding rock, to improve the situation by force stand to improve its carrying capacity and maintain the surrounding rock stability. Roadway retractable guard support Features 1, roadway retractable guard support to withstand pressure, supporting a long time, are easy to install easy deformation characteristics. 2, roadway retractable guard support with a scalable and reliable carrying capacity than other rigid support, adapt soft rock load and deformation. 3, roadway cross-section retractable guard support bracket branch back to facilitate high utilization of small amount of maintenance. 4, roadway retractable guard 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