03
June
1, Make a completely check on the installed gantry crane, observe carefully if the installation procedures reasonable and correct. 2, Examine the electrical wires connection and limited switches. 3, Look over the mechanical parts, strictly eliminate the clamping phenomenon. 4, Check the lubrication of every rotating parts. 5, Look over the steel ro ...
02
June
1, It must do the low-hanging test every time to check the braking performance. If necessary, adjust the brake clearance to meet the lifting requirements. 2, Under no circumstances, prohibit overload operation. 3, Making some protection measures to prevent spread stranding while cutting off the steel rope. 4, The steel rope installation should be i ...
01
June
ZZHZ is a professional manufacturer of gantry crane, which is widely used in various of construction projects. With the characteristics of the reasonable design, convenient assembly and dismantling, high reliability and wide variety, the gantry crane made by ZZHZ can meet the different customers requirements and enjoy the good reputation in this fi ...
30
May
1, Motor and gear reducer maintenance Check frequently the temperature of the motor housing and bearing parts, the motor noise and vibration condition. In the case of frequent starting, the ventilation cooling capacity will be reduced due to the low-speed, and the current is large. The motor temperature will rise largely soon. So it should be noted ...
28
May
1, The types a, According to different construction methods, it consists of the field-casting and field segmental assembly. b, It divides into the movable supporting system and movable standing system in light of carrying the mould plate or not. For the movable supporting system, we cast the concrete girder on site. However the movable standing sys ...
27
May
(1) With the truck crane, assemble and check the main girder beam, supporting legs and gearboxes by tag on the ground. Put them proper places waiting to lift. (2) Assemble the gearboxes on the crane rails, make them immovable through pulling the diagonal. Ensure the either side of the supporting legs and gearbox firmly conjunction with the pins con ...
27
May
The gantry crane for girder-lifting is super heavy hoisting equipment. To guarantee the staff safety, the safety regulation procedures must be carried out well. 1, The safety requirements in operation 1.1 Check that if the slings and pulleys are appropriate and in good condition, particularly the cracks in the positions like leveled, broken or no o ...
24
May
The main girder of gantry crane produced by ZZHZ is isosceles triangle honeycomb girder structure which has acquired the national patent, also with the advantages of light self weight, high stiffness, small deflection, strong wind-resistance and so on. The design retains the load-bearing steel plate of both sides based on the box girder structure, ...
23
May
The overhead crane is an important tool and equipment which realize the production process mechanical and automatic in the field of industrial production and hoisting transportation. The gnawing rail is a common phenomenon in the process of production usage which also has been a problem affecting the normal operation. At least it will reduce the sa ...
22
May
(1) The machinery parts: The supporting motor, reducer, electrical hoist and the other parts must be maintained as the instructions leaflet provided by the manufacturers. The bearings installed on the traveling mechanism and the moving and fixed pulleys should be filled with the Calcium-based grease monthly. The lubrication oil for the reducer need ...
21
May
The gantry crane belongs to the large-scale and heavy-duty hoisting machinery with the expensive cost. In order to operate the gantry crane effectively, its necessary to do the regular care and maintenance. In the process of caring and maintenance, the following requirements should be paid more attention: 1, The steel rope shall not be used as the ...
18
May
ZZHZ is a professional manufacturer of hoisting machinery, the main products include all kinds of launching gantry, gantry crane which are widely used in the highway construction projects. The honeycomb girder launching gantry made by our company is welded by the honeycomb steel plate and triangular web plate. The overall shape is triangle. Compare ...
17
May
Gantry crane is the development of overhead crane. It is used to load and unload bulk loads in freight yard outdoor and in stock ground in harbor. Metal structure of the gantry crane is just like gantry frame, two supporting legs are installed below main girder and can move along ground track. There are cantilever beams at each end of the main gird ...
17
May
The safety protection device of gantry crane is a kind of facility which aims to protect the safely operation of equipment. In the operation process, once the abnormal condition, a series of failures even the dangerous circumstances happen, the signal of the alarming and instruction can appear in order that they can be dealt with promptly or shut d ...
17
May
The launching gantry is the machine which erects the pre-cast concrete girder on the prefabricated piers. This invention has made a great contribution to the Chinese bridge construction field. As the development process of the high-speed railway projects in China speeds up gradually, the launching gantry will play a more important role in the follo ...
17
May
We need to make a choice when we intend to choose a crane. And the choice should not be based on the general thought in the users mind. For example: I want to lift 2t of objects so I buy a 2t crane; I want to lift 5t, so purchase the 5t crane and so on. In fact, to choose a suitable crane, we also need to consider the specific circumstance and purp ...
17
May
The gantry crane is a kind of large lifting equipment which is mainly operated outdoor. In order to reduce the risk of crane accident, we must strictly comply with the correct installation steps to the complete the whole assembly when we are installing the gantry crane. 1, With the crane, mark the assembled main girder, support leg, gearboxes etc. ...
09
May
After finishing crane assembly in the worksite, make load and function test, the crane can lift objects after confirming everything goes well; ...
08
May
We must retest the rails’ elevation, centerline spacing, straightness, key point and size about last procedure to meet the design requirement or construction rules, and measuring the setting point in suitable place of rails by theodolite which is presented squareness, the test item as following: ...
07
May
Assembly and maintenance of overhead crane can only be done by trained and authorized personnel ...
Products Categories
- Gantry Crane
- Bridge Girder Launcher
- Movable Support System
- Overhead Crane
- Shotcreting Machine
- Cinder Scraper
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