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24
October
Launching girder can move longitudinally and laterally on the rail. Whether the launching girder works well to a large extent depends on quality of rail installation. If the installation is unqualified, chewing rails and collapsing is likely to occur in the moving process, which has a great effect on normal operation of launching girder. Generally ...
23
October
ZZHZ is one of China leading manufacturers to produce high quality launching gantry for highway and high speed railway. With annual productivity 10 sets, ZZHZ launching gantries have been exported to at least 10 countries and received good reputation. At present, launching gantry has been a proven product in ZZHZ, while it still has a longer produc ...
22
October
HZQ32/165T bridge girder launcher (zzhz.com) is designed for highway and railway. According to the situation of present railway with less sub grade, more bridges and tunnels which connected too closely, our company learn from advantages of other launchers at home and abroad and close the gap, after amend the drawings many times, ZZHZ(zzhz.com)desig ...
19
October
To pursue high performance and economy to the greatest extent, composite structure bridge uses steel with strong tensile performance and concrete with good compressive property in the component tensile region and compressive zone; with rational combination of steel and concrete, composite structure bridge has better mechanical performance and econo ...
18
October
MSS650 movable scaffolding system bridge making machine made by ZZHZ features high stiffness, strong adaptive capacity, it can construct curved bridge R=550m and adopt the structure pattern of support leg shifting by itself. MSS650 is made up of bracket system, main girder moving system, main girder, guide beam, scaffolding support system, formwork ...
18
October
Support legs are important parts to ensure the gantry crane to move smoothly, good welding technology will provide support legs with good performance. 1. Assemble rib plate of gantry crane and corresponding plug welding base plate, then weld them as rib plate assembling unit; 2. Lift cover plate on the platform, mark position line of rib plate and ...
17
October
Overhead crane span structure moves along the overhead rail track, anti-collision device is one necessary safety device for overhead crane. Anti-collision device of overhead crane is mainly made up of: 1. Distance detection controller Its main function is to deal with signals received by laser sensor and then to correspond relevant motions of alarm ...
17
October
Crane resistor is mainly used to adjust rotational speed and reduce starting current of motor. Thermal problem shall be paid more attention to for long time use of crane resistor, which is key factor to decide whether it can move safely. Generally, it must be immediately observed whether crane resistor will be in overheating condition as we use it. ...
16
October
The safety protection device of gantry crane is a kind of facility which aims to protect the safely operation of equipment ...
16
October
MG gantry crane is the patented product of ZZHZ. It is made up of main girder, legs, crane running mechanism, liftig trolley, ladders, driver bin and electrical system. ...
16
October
ZZHZ has set up the technology center which combine with universities,it buys high-tech design soft to develop the new girder style-honeycomb girder. it solves the large weight of web girder and the difference of stiffness of truss girder ...
16
October
ZZHZ has very rich experience of producing hoisting machinery. For example, gantry crane , so it can give some advice to us: ...
16
October
ZZHZ has very rich experience of producing hoisting machinery, for example, gantry crane therefore, it can give some advice to reduce the influence of impurity. ...
16
October
ZZHZ has very rich experience of producing hoisting machinery, for example, gantry crane therefore, it can give some advice to reduce the influence of temperature. ...
16
October
MGHZ1200 gantry crane is the hoisting equipment for large-scale bridge. In order to make sure the contiue operation and safety of workers, so the daily check is very important. ...
16
October
We should check geometry size, verticality, horizontality and deflection etc. after the structures of bridge girder launcher are installed completely ...
16
October
checking the steel ropes of gantry crane after receiveing them. When taking the rope steel , the operator should check the roller or reel can be put on the ground or not. ...
16
October
ZZHZ has very rich experience of producing gantry crane; therefore, it can give some advice about the maintenance of mechanism. ...
16
October
Nowadays gantry crane is widely used to carry, hoist or load kinds of blocks in different field. According to the different type of girder of gantry cranes, there are three types in mainland of China. ...
16
October
1. The trial lift of low distance must be done before every lifting, in order to check the capability of brake. If necessary, the operator can adjust gap of brake block to meet the requirements of lifting. ...