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bridge gantry crane
Bridge gantry crane Introduction
Gantry crane hoisting mechanism, trolley traveling mechanism and bridge structures, basically the same with bridge crane . Because large span, crane operating agencies mostly used driven way to prevent the crane skewed operation and increase the resistance, or even an accident. Gantry crane lifting trolley running on the bridge, and some lifting trolley is a arm crane. The legs on both sides of bridge are generally rigid legs; span of more than 30 m, it is often the one side of the rigid leg, and the other side of flexible leg Through the ball joint and bridge connection, made the mast to be a statically determinate systems , to avoid the additional stress caused by lateral thrust under external loads , can also be compensated bridge temperature ,in order to prevent the strong wind down the line or tip over, with wind measurement instrument and crane rail clamp.
Capacity
|
T
|
50/10
|
75/20
|
100/20
| ||
Span
|
m
|
7.5~31.5
| ||||
Lifting height
|
Main hook
|
m
|
12
|
20
|
22
| |
Aux.hook
|
m
|
16
|
22
|
22
| ||
Operation method
|
Pendent control,wireless control,cabin control
| |||||
Speed
|
Lifting
|
Main hook
|
m/min
|
5.9
|
5.5
|
3.53
|
Aux.hook
|
m/min
|
13.2
|
9.23
|
7.2
| ||
Cross travel
|
m/min
|
38.5
|
38.4
|
33.86
| ||
Long travel
|
m/min
|
74.6
|
65
|
65.6
| ||
Lifting mechanism
|
type
|
electric winch cart
| ||||
Working duty
|
A5,A6,A7
| |||||
Power supply
|
AC
|
220/380/400/415/460V,50/60Hz, 3P
| ||||
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