Overhead traveling crane: installation and debugging

Overhead traveling cranes are widely used in factories and mines, ports, and railways. In order to better reduce the problems in the whole process of a middle and late application. After ordering an Overhead traveling crane, customers must pay attention to the installation to ensure the installation quality. The following are some aspects that must be paid attention to when installing overhead cranes in the workshop:

The installation of the overhead crane must be fully prepared

For an industrial plant, the overhead crane can be installed first before other installation equipment, so that it can be used flexibly to carry out frequent transportation and lifting and hoisting of other installation equipment in the whole process. The following must be done:

  • The mutual cooperation of civil engineering enterprises should be obtained, and the crane beams should be prepared in advance for the installation of rails;
  • The mutual cooperation of capital construction, supervision companies, and machinery and equipment dealers should be obtained to deliver overhead crane machinery and equipment in advance, which must also be booked in advance by the company to prevent the overall progress from being jeopardized by the production cycle;
  • Mechanism energy, adopt appropriate operation method, lift the overhead crane on the guide rail as soon as possible;
  • Carry out the cleaning, oiling, and plug-in test run of the overhead crane in the least time period. When necessary, a temporary switching power supply can be laid for use.
Paper mill crane
Overhead crane

Rail installation must be precise to clear rolled rail conditions

The rail installation of lifting equipment is generally carried out by the industrial plant construction unit that the company cooperates with. In order to prevent problems during the installation of lifting equipment, assembly and inspection must be carried out in accordance with the rail installation regulations.

Be sure to specify exactly where to install

Generally, the overhead crane can be assembled on the road, and then hoisted to the rail by the overall lifting of the crane. The lifting point should be determined according to the structure of the overhead crane, the net weight of the bridge body, the car and the car cab, and the core parts.

During the overall lifting and hoisting, in order not to harm the machinery and equipment on the car, the car is generally fixed on both sides of the galvanized steel wire rope and close to the binding point.

QB explosion proof overhead crane
QB explosion-proof overhead crane

The bridge body should be entered in sequence, and assembled after the ground is leveled

  • In order to prevent the bridge body from moving twice in the industrial plant, the left and right half of the bridge body should enter the industrial plant in order and direction, and be unloaded and assembled at a specific address. To achieve this, it is also necessary to consider the driving of the overhead crane. The specific location of the room and the hoisting rotation direction.
  • The bridge body entering the industrial workshop must be assembled with anchor bolts after leveling and leveling, so as to ensure that each wheel of the overhead crane is on the same plan.
  • The special connecting plates of the left and right half-bridges must be assembled according to the identification of the manufacturer. When tightening the connecting anchor bolts, the cross tightening and batch tightening methods should be applied at the same time, and cannot be tightened at one time.

When the distance between the overhead cranes exceeds the column distance of the industrial workshop, the hoisting method should be determined after calculation.

Some workshops have overhead cranes whose overall width exceeds the column spacing of industrial workshops. Whether this type of overhead crane can be lifted and hoisted as a whole must be determined according to the calculation.

The roof space of the factory building is not enough, and the safety construction plan should be determined after the calculation

Some old industrial plants have been upgraded and installed with lifting equipment, but the relative height of the industrial plants is insufficient, and it is very likely that the overall lifting and hoisting will not be possible. The overall lifting and hoisting can be realized by extending the pick rod out of the flat roof.


Connect the electrical control system of the overhead crane according to the product drawing, and connect the safety trolley wire collector/reel flexible cable. Install each limit switch according to the drawing. Install a three-phase power indicator light on the end wall of the rail. Install the power air switch and connect with the safety trolley/reel flexible cable. Measure the insulation resistance of the electrical main circuit and the control circuit, and the resistance value conforms to the provisions of GB50256-96. The electrical installation must comply with the provisions of GB50256-96 and GB6067-85 and other standards.

Installation video


Cost-effective lifting equipment coupled with standard installation quality can give full play to its role.

In order to better reduce the worries of customers, Weihua Crane has professional installation staff at the factory for installation to ensure the quality of installation, and to help customer companies to carry out customs declarations and inspections, so that customers’ lifting equipment can be successfully delivered for use.