CNBM 900T, 35M span Pre-casted segmental assembly Launching Gantry/ Bridge girder erection machine

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CNBM-900 ton segment bridge construction launching gantry crane is generally used in the erection of the Highway Bridge and Subway Bridge, using the precast segmental pre-cast concrete box beam (PC beam) assembly. The main feature is the high efficiency of construction and self-traveling. Generally it is composed of the main beam, leg and winch trolley, the main girder is used for bearing, the leg is to execute machine transverse moving, longitudinal moving, leveling, support, cross span, cross scale and other functions, and the winch trolley used for lifting the precast girder.


Technical Parameter




Parameters or Capability


Whole machine working level



Working grades for mechanism



Erection Span



Full suspension Max. weight

900t(contain the weight of hang


Max.longitudinal slope of bridge

3.0%(actually less than 2%


Section beam cross slope



Min. working level curve radius

When span 35mR=2500m


Max. size of segmental beam (length x width x height)

(3.4m/3.8m/4m) ×14.9m×2.2m


Max.weight of the segment beam



Beam feeding mode

Underbridge beam feeding / reserved tail feeding interface


Crane rated lifting weight / lifting range

100t / above deck10m,below deck 18m


Crane Lifting speed



Crane walking speed



Max. lateral adjustment distance of Crane



Lifting device rotation angle



Lateral angle adjustment ability of Lifting device



Vertical angle adjustment capability of Lifting device



Max.transverse velocity of the whole machine



Longitudinal moving speed of the whole machine



Longitudinal and transverse maximum wind condition

≤16m/sdegree 6 wind


Max. wind force condition in non-working anchoring state

≤49m/sdegree 12 wind


(1) Reasonable structure
(2) Favorable performance
(3) Smooth starting and stopping
(4) Safe and reliable traveling
(5) Low noise, commodious cabin and good view
(6) Convenient maintenance, excellent exchangeability for parts and components
(7) Saves electricity specifications

Safety feature:
(1) Weight overload protection device
(2) Lifting height limit device
(3) Voltage lower protection function
(4) Phase sequence protection function
(5) Emergency stop function

Control method:
(1) Pendent line control
(2) Remote control
(3) Cabin control
(4) Choose any two together

CNBM 900T, 35M span Pre-casted segmental assembly Launching Gantry/ Bridge girder erection machine

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(a) the professional (refers to the design and manufacture of machinery and automation, material forming and control engineering, process equipment and control engineering, see Table 1 below) or similar professional (refers to the metal material engineering, packaging engineering, printing engineering, textile engineering, food science and engineering specialty, see Table 1 below.) Bachelor degree or degree.

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