19
December
The gantry crane Lifts rated load(increasing the load to rated load), and travels a round trip along the gantry, checks the function, ...
18
December
in order to reduce the labor intensity and keep the safety for lifting girder of gantry crane, we usually lift girder by hydraulic system automatically. The steps are following ...
13
December
1. Accurate and stable up-warp value after main girder correction, and it can be adjusted anytime in accordance with different purpose; ...
12
December
Principle for using pre-stressing force method to correct main girder down-warp: use pre-stressing force to stretch-draw many steel bars or steel wire ropes at two ends of main girder bottom cover plate by fixed support, ...
01
December
Under some conditions, ZZHZ cuts main girder upper cover plate by use of the influence that main girder self-weight has on the camber, thus reduce bending modulus of main girder section at cutting position, weaken bending resistance of main girder, generate a mechanical deformation caused by main girder self-weight, then reduce upper camber value at ...
28
November
Sometimes ZZHZ will use flame straightening method to correct crane main girder deformation. Flame straightening method refers to that local heating on the metal structure produces plastic compression on some places and remained local shrinkage stress can correct the bend after cooling. ...
27
November
1,suspending or paste the safety warning brand to prohibit the unrelated person to come in.
2,checking the wheelbase centerline and testing in order to fit for the design, and then crane erects the traveling mechanism on the rails .
...
26
November
1, the user must know the function of slings , application notice and out-of-service standards.
2,the slings must be fit for the lifted parts .
...
17
November
Under some conditions, ZZHZ cuts main girder upper cover plate by use of the influence that main girder self-weight has on the camber, thus reduce bending modulus of main girder section at cutting position, weaken bending resistance of main girder, ...
16
November
All of crane must have nameplate before it leaves factory. So the nameplate of gantry crane includes the following content: ...
10
November
9. People and goods are prohibited to lift together.
10. The goods shouldn’t be allowed to stop in the air for a long time. The driver and director should stay when the gantry crane lift goods.
...
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.
...
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. ...
31
October
1、Preparations and check:
（1）Turndown the whole circuit, ensure the installation meet the requirements.
...
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.
...
Products Categories
- Gantry Crane
- Bridge Girder Launcher
- Movable Support System
- Overhead Crane
- Shotcreting Machine
- Cinder Scraper
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