Bolt torque multiplier is the solution to help (top) best equipment early enough anchor bolt force. Alone 35 (120) when the rig tightened bolt nut torque can only reach 35 (120) Nm, the beginning of the anchor bolt force only 10 (35) KN about a serious shortage of early anchor force. To improve the initial anchor bolt tension meter manufacturers force, torque wrench is generally used to increase torque, increase early anchor force, time-consuming and laborious. After using the rig and increase torque converter installation linkage nut torque can be increased by 5 to 6 times in the coal bolt tension meter, so that the bolt preload for 70 ~ 90 (120 ~ 160) KN, fully meet the anchor bolt in early of the design requirements. Tai'an City, Warner Mechanical and Electrical Equipment Co., bolt torque multiplier (by the torque converter) into ZN-I type (for help anchor) and ZN-II type (for the top anchor) two specifications. Torque wrench bolt preload is Warner Mechanical and Electrical Equipment Co., Ltd. Tai'an City's main product, the following is a brief introduction: "Warner card" voice alarm Bolt Torque wrench, Long sleeve head, adjustable wrench mining bolt tension gauge, bolt preload tester spray anchor for roadway roadway at a predetermined torque fastening bolt nut, bolt tension can be detected and used as tools. Separation and collapse accident in Shotcrete roadway, mostly due to the installation of the anchor bolt tensioning anchor nut after tightening index did not meet the requirements due; tightness of fastening bolt caps, is that the play full role in the key in the key, MC3 twist bolt preload torque wrench is one of the important tools to complete the job of. MC3 bolt preload Torque wrench technical parameters: Torque Detection range: 60-300N.m, 100-500N.m; 280-760 Nm; 200-1000 Nm; 700-2000 Nm; 1500-3000N.m; 2500 -4000N.m bolt tension meter, Warner electrical, mining bolt tension meter is provided by Warner electromechanical. Warner Mechanical and Electrical Equipment Co., Ltd. Tai'an City (www.tahnjd.com) in the roof dynamic instrument, mining intrinsically safe pressure detector, under reduced pressure hydraulic support industry self-recording instrument, such as a higher visibility, integrity management, quality of service both welcome to inquire or consult our "business alliance customer service" it!