Průmyslový mobilní 20t 25t portálový jeřáb cena
The shape of the industrial gantry crane price is like a gate standing in the workplace. The hoisting mechanism is used to vertically lift objects. The trolley is used to carry the load for lateral movement. In order to achieve the three-dimensional space composed of span and specified height for handling and loading and unloading goods.
The 20 ton 25 ton gantry crane is the most widely used and the largest type of rail-running crane. Its rated lifting capacity ranges from a few tons to several hundred tons. The most basic form is the universal hook gantry crane. Other forms of industrial mobile gantry cranes are derived and developed on the basis of universal hook gantry cranes.
The metal structure is the mechanical skeleton of the whole gantry crane, which bears and transfers the load and body weight of the crane transporter. Generally, it is mainly composed of main beam, end beam, saddle beam, outrigger and so on.
The rigid outriggers are connected with the main beam by high-strength bolts. And the flexible outriggers are connected with the main beam by flexible hinges. The main beam is a box-shaped structure, which is a closed box-section solid plate beam structure composed of upper and lower cover plates and two vertical webs.
The running track of the singer girder gantry crane hoist trolley is laid above the inner vertical web. And the distance between the two main beams mainly depends on the gauge of the hoisting trolley.
The outrigger is a box-shaped structure with variable section, which not only ensures the reliability of the work but also reduces the self-weight.
The section forms of the end beams and saddle beams are also box-shaped structures. Due to the higher working level of the gantry crane, the addition of the saddle beam can increase the overall stability and stability during work, and it is safer and more stable to use.
