No.12 Single Turnout with 75kg/m Rails. It applies to heavy load railway with 75kg/m rails and trans-section seamless railway. Switch section adopts 60AT elastic flexible switch rail with hidden-type point and the inner side of stock rail is planned and widened. Two traction points are set for switch rail. The frog is alloy steel forged frog or high manganese steel frog. The gradient of 1:20 is applied to the track top or bottom of the turnout. Rail fastenings are adopted to type II elastic rail fastenings which are separated and adjustable.
3、Back Length ：21208mm
4、Radius of Curve：400m
5、Permission Passing Speed on straight line：Passenger Trains≤120km/h，Freight Trains(30 tons axle load)≤100km/h