Product Parameters QTD 125 jib tower crane operating
mechanism, luffing mechanism, slewing mechanism and metal
structure. The QTD 125 jib tower crane is the basic working
mechanism of the crane, which is mostly composed of the suspension
system and winch, and some lift heavy objects through the hydraulic
system. The operating mechanism is used to move heavy objects
longitudinally and horizontally or adjust the working position of
the crane. It is generally composed of motor, reducer, brake and
wheel. The luffing mechanism is only equipped on the jib crane. The
QTD 125 jib tower crane when the jib is raised and increases when
it is lowered. It is divided into balanced luffing and unbalanced
luffing. The slewing mechanism is used to rotate the boom and is
composed of a driving device and a slewing bearing device. The
metal structure is the framework of the crane. The main bearing
parts such as bridge, boom and gantry can be box structure or
truss MechanismsNamesModelsOperating speed(m/min)weight(t)Rope
Capacity(m)MotorHoisting45LVF25A=20~455
500m
>500m ★
Frequency
Control45KW0~902.5α=40~22.550~4510Luffing45DFV40
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