High quality rail bolt torque wrench spanner

Digital display single-head bolt wrench for removing and installing the sleeper bolts, especially suitable for the tunnel and closed operation environment;
Accurate and constant output torque, It is the essential machine to high speed and new-built railways, 150N.m,200N.m, 250N.m,350N.m,LCD screen display ,easy to set up;
 Every tightening of a bolt about 6 to 8 seconds;
Each cell in the 150N.m block, the continuous operation if about 1.5 hours, about 700 nuts, railway line length(one side)about 350m