DP18 narrow-gauge rail layer is composed by host machine (Cart No.1),Cart No.2 and flip gantry. The parallel operation order is: host machine laysthe track, Cart No.2 transports, and the flip gantry lifts and loads. Thismeans: the track panel train enters, the flip gantry lifts the track panel, andloads them to cart No.2, the cart No.2 transports the track panel to the rearend of host machine, the dragging winch drags track panel to the host machineand returns the guiding-rail to cart No.2. The cart No.2 returns to the flipgantry with no load, meanwhile, the host machine starts laying track.
1.Host machine：
Max lifting capacity： laying track of 18t (including spreader)
Track panel capacity： 6 layers
Operation line conditions： max longitudinal gradient 20‰；min curve radius 150m
Gauge： 1067mm
Traveling： 0～10km/h variable speed，motor power 4X24kW（DC),
Min curve radius 150m，JZ-7-type braking system
Power： 120kW
Operation load： 70t
Technical speed： 3.0min/row
Weight： 123t
Dimensions： 49050×6065×3380mm（highest working status）
28938×4365×3380mm（transporting status）
Segments of structure： two parts:17200+10800mm
Segments of arm： threeparts: 14790+12000+12800mm
2、Cart No.2
Operation load： 70t
Load： 2×22t
Dimensions： composedby two small carts with the same dimensions of 13938×2400mm
3、Flipgantry
Quantity： 2
Lifting capacity： 60t/gantry
Power： 20kW（eachone）
Weight： 10.8t
Dimensions： 4520×3200×6135mm（operating）
4520×3200×4235mm（transporting）