华中建机中文版WhatsApp: +86-13733150737

ASK

09
November
1. The driver should be trained by the professional training, and get the certificate after passing the examination, and he is very familiar with structure and operation. 2. Anyone who is not a professional driver is strictly prohibited to drive the gantry crane. ...
08
November
We are always emphasize the important role of the maintenance of launching gantry, why does us have to maintain the bridge girder launcher? Maybe the users don’t know the reasons very clearly, so ZZHZ can explain the reason as follow: ...
07
November
Auxiliary push rod (front, middle): used in crossing piers process, help front and middle support legs to move longitudinally, adjust levelness of launching gantry main girder and bears part of weight of launching gantry. As hydraulic rods, auxiliary push rods are installed on fixed position of guide beam. ...
06
November
Walking type launching gantry is a new type of bridge construction crane fabricated to meet demands of market and actual working condition, combined with current successful experience of ZZHZ and other companies. ...
03
November
There are kinds of pincers used in installation and maintenance of gantry crane : wire cutting pincer、sharp nose pincer, wire clipper, wire stripper. ...
02
November
The bridge girder launcher is installed on the bridge head or roadbed with area length 100m x width 12m on the abutment which will be constructed. ...
01
November
Accessories are made up of main girder accessories, front support leg accessories, lifting trolley accessories, ...
31
October
1、Preparations and check: (1)Turndown the whole circuit, ensure the installation meet the requirements. ...
23
October
Rear bracket of bridge girder launcher is made up of hanging institution, roller institution, inner sleeve, outer sleeve, hydraulic cylinder and pins, total weight about 4t. ...
22
October
(1)Cut off the power before test run, check all of the following parts: a. All parts assembly should conform to the requirements of drawings. ...
20
October
Do the test run before formal using in order to make sure the quality of erection and reasonable and safe using. ...
19
October
Lifting the 1.1times heavy weight(132t) to do the loading test, the requirements as the same as the above. ...
19
October
Lifting the 1.1times heavy weight(132t) to do the loading test, the requirements as the same as the above. ...
18
October
(1) Prohibit loosing and unloading the hook in the course of hoisting parts especially the large-sizes ones. (2) The high-altitude installation staff needs to wear safety helmets and fasten the safety belt. ...
17
October
After test run of gantry crane without load, rectifying the fault to do the rated load test run. ...
16
October
a lifting and down without load 2~3times,running smoothly and don’t have noise; b the indicate direction of controller accords with the turning of motor; ...
13
October
3) Install support legs Lay out sleepers on the ground, put 2 sections support legs on the sleepers with 50t crane after support legs are transported into the field (support legs outside should be downward), support legs are vertical to the rail, adjust elevation and keep upper surface in a level, make connection surface of 2 sections legs reach th ...
12
October
1) Crane moving mechanism installation and positioning Measure the rail and make marks to form a rectangle frame, lift and install 4 sets moving mechanisms with 80t crane to the expected position, and re-check and align them, then support and fix moving mechanisms, install anti-creeper. Support the angle iron on the rail built-in fitting along the ...
10
October
1 In order to prevent, control and eliminate the hazards of the sudden accident in the process of gantry crane installation effectively and timely; minimizing the losses caused by the accident; ...
09
October
(7) Keep stable and slowly, avoid vibration and swing in course of hoisting goods. (8) Make a thorough understanding of the installation scheme before construction. Be familiar with the operation and concrete steps. Don’t randomly change the scheme, contact the manufacturer when it really need to do. ...