27
November
1、Application range and use of bridge girder launcher : It is mainly used for lifting of concrete girder in bridge construction of general railway and highway. 2、Main features and advantages of product: After researching and analyzing current highway bridge construction machine at home and abroad, combining with our successful experience, we de ...
26
November
1, The overhead crane must be in normal status, especially the safety devices. Hang the signs of the rated lifting capacity on the visible position. 2, In the working condition, prohibit transporting the people with the crane or the hook. 3, Forbid operating the crane without the license and drink driving. 4, In the operation process, concentrating ...
25
November
The armor plate and profiled bar for welding manufacture of the gantry crane are pretreated before welded. The armor plate and profiled bar are not allowed to weld if they arent pretreated. (1)removing the impurity which cling to the surface of armor plate, and removing the grease etc. dirt by thinner, for example sulphate or corrosive salts , usin ...
22
November
Gantry crane is the extra-heavy hoist machinery. Therefore we should operate it safely and correctly in order to make sure the workers safety. Therefore, ZZHZ can give some advice to us: (A) Visual inspection: (1) Preparations and check: i, Turndown the whole circuit, ensure the installation meet the requirements. ii, Check the following parts: a, ...
22
November
According to field working condition in Singapore, combined with ZZHZ successful design experience of bridge girder launcher, HZQ59/80 segmental assembly bridge girder launcher is designed as honeycomb type double girder machine, which features as below: 1. Unique honeycomb girder, features light self-weight, large load, strong wind resistance abil ...
22
November
Generally speaking, the lifting injuries include extruded, falls, falling heavy objects, collapsed, broken, overturned, electric shock, impact accidents. Each accident is related to its working environment, which were caused by the human factors, or by the defective equipment, also by the both of them. The prevention for the extrusion accidents The ...
19
November
a. the bridge girder launcher mainly uses Q235B steels: the butt welds of cover board and web board, the outer lead weld of cover board and web board adopts Lincoln weld, other welds use CO2 gas shielded welding; welding material: welding rod of Lincoln weld H08A, and HJ431; welding rod of CO2 gas shielded welding: ER50-6; the electrode of tack wel ...
16
November
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 and honeycomb girder. And isoceles triangle honeycomb girder has got the patent. 1. explanation of equipmen ...
15
November
The bridge girder launcher is equipped with 7 sets hydraulic systems which are provided by authorized and qualified manufacturers and are made up of hydraulic station, hydro-cylinder, oil way and other parts; one set hydraulic systems is respectively set up on the front support leg, front middle support leg and rear middle support leg, convenient o ...
14
November
ZZHZ has very rich experience of producing gantry crane ; therefore it can give some advice to us: 1, The operator must pass the training exam and get the operational certification. Otherwise, someone doesnt operate it alone. 2, The operator should check equipment, electrical part and protective insurance device carefully. The lifting is prohibited ...
13
November
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. The temperature of each part has its own normal temperature when working. Such as ,generally, the cooling waters temperature is 80-90℃,and the temperature of hydraulic oil of hydrauli ...
12
November
ZZHZ has very rich experience of producing hoisting machinery . For example, gantry crane , so it can give some advice to us: As general, the abrasion of parts will increase with load, when the load which the parts bearing is higher than the average design load, the abrasion will increase rapidly. The test indicates that the abrasion of cylinder wi ...
11
November
Operating environment, situation and usage frequency are usually considered as the condition of selection of rope of gantry cranes . In general, the rope should have excellent toughness. The linear contact lay wire rope can be selected firstly when the rope winds the sliding wheel and drum. And galvanized wire rope can be selected in the corrosive ...
30
October
When an enterprise is selecting the lifting crane , not only the hoisted objects but also the actual requirements should be taken into consideration comprehensively. In this way, we can save the cost and guarantee the successful operation. However how to select the crane? The technicians from ZZHZ will give some suggestions to the customer on this ...
29
October
The lifting crane is composed of travel mechanism, gantry, operators room, main girder beam, walkway and platform, trolley for hoisting, and chain jack. (1) Travel Mechanism of Gantry. It consists of two drive gearboxes and two driven gearboxes. There is a drive travel gear and a driven travel gear inside the former. And there is a cycloidal pin ge ...
28
October
Overhead crane can work above the rectangular ground, mostly it is used to load and unload objects in the warehouse, workshop and open storage area. It can be divided into two groups as below. (1) Beam crane. Beam crane mainly includes bridge type single beam crane and bridge type double beam crane. Main beam for single beam crane is mainly compoun ...
28
October
The overhead crane includes four major parts: the body structure, the trolley (lifting and traveling mechanism), the crane traveling mechanism and the electrical equipment. The lifting mechanism, trolley traveling and crane traveling mechanisms are the three working mechanisms of the crane. Each mechanism is equipped with a sole motor for the respe ...
25
October
Safety devices of gantry crane make gantry crane work well. They can raise the alarm and index signal to quickly deal with the breakdown and dangerous situation in order to avoid accidents, maintain normal protection and protect life safety of employees. So, it is necessary to design and install safety devices. 1. Ascending limiting position limite ...
25
October
(1) After researching and analyzing current highway bridge construction machine at home and abroad, combining with our successful experience, we develop and produce the new walking type bridge girder launcher according to practical situation. The main features are following: 1. First-made honeycomb girder in China with light self weight, heavy load ...
25
October
ZZHZ is a professional manufacturer of hoisting machinery such as gantry crane and bridge girder launching gantry which are widely used in highway construction. Compared with the box girder, the honeycomb girder launching gantry made by ZZHZ features low centre of gravity, light weight, high safety and high wind resistance. Compared with truss gird ...
Products Categories
- Gantry Crane
- Bridge Girder Launcher
- Movable Support System
- Overhead Crane
- Shotcreting Machine
- Cinder Scraper
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