Safety protection devices for gantry crane

In order to ensure the safety of Single Girder Gantry Crane operations, many users will install safety protection devices on it to protect or remind operators the safety. So what are the safety devices of gantry cranes?Let us have a look together.

1. Lifting limit device: When the hook of the travelling electric gantry crane rises to the specified height, it will touch the limit weight hammer, then the stroke switch will be turned on, the “overwinding” indicator lamp will be turned on, and the operation of lifting the hook and extending the boom will be cut off to ensure safety.
2. Leg locking device: In the case of high pressure hose, tubing rupture or cutting to the vertical cylinder of A-frame gantry crane leg, the two-way hydraulic lock in the hydraulic system can block the leg, block the pressure oil two cavities of the cylinder, and keep the leg from shrinking or throwing out to ensure the safety of the outdoor trackless gantry crane
3. Lifting capacity indicator: mainly to enable operators to clearly point out the elevation angle of the boom and the rated lifting capacity allowed by the crane under the corresponding working conditions to ensure that the double girder Truss Gantry Crane will not be overloaded
4. Boom telescopic safety device: Usually when the high pressure hose or tubing burst in the boom telescopic cylinder circuit of the gantry crane, the balance valve in the hydraulic circuit will lock the working oil from the lower cavity of the cylinder to make the hook Automatically retract to ensure the safety of heavy lifting gantry crane

How to safely operate the gantry crane?

As the large lifting equipment, the safe operation of gantry cranes plays an important role in the company’s production and personal lives.

Each type of crane has its own safe operation procedures. If you want to operate crane safely, you must master it in advance. The following is a brief introduction of safe operating procedures for gantry cranes.

1. Before the gantry crane is operated, the brakes, hooks, wire ropes and safety devices of the crane need to be checked. If any abnormal phenomenon is found, it needs to be solved in time.
2. The operator must confirm that no one is on the platform or track before turning on the main power. When the power circuit breaker is locked or a notice board showed, the main power supply should be removed before turning on. When the gantry crane is operated, it is necessary to perform the bell alarm for various operations in accordance with the regulations, and also need to operate in accordance with the unified command signal.
3. When the vehicles of gantry cranes are in normal operation, they cannot be braked and stopped. When changing the movement direction of the vehicles, the handle must be at the “zero” position and the mechanism should be completely stopped before driving in the opposite direction.
4. When the gantry crane suddenly loses power, it is necessary to return all the control handles of the crane to the “zero” position in time, and check whether the gantry crane could be operated normally before restarting.
5. For gantry cranes with two hooks, if the main and auxiliary hooks are switched and the height of the two hooks is close, the main and auxiliary hooks must be operated separately to avoid collisions.
6. When lifting heavy objects, the weight should be lowered 0.5 meters above the ground to check the performance of the gantry crane brake, and then perform normal operations after confirming the reliability.

How to reduce the maintenance cost of European standard gantry crane?

When using any mechanical equipment, it must be maintained; otherwise it is likely to shorten its service life, not to mention the special mechanical equipment such as the European standard gantry crane.

In order to ensure the high-efficiency operation of the European standard double-girder crane, it takes a lot of costs to maintain. So how can we reduce the maintenance cost?

1. Set a fixed inspection and maintenance cycle for the European standard single beam crane.It should be noted that the determination of the inspection and maintenance cycle needs to be determined according to the working conditions and stroke length of the European standard single girder gantry crane.
2. Correctly understand the maintenance problems of the European standard double girder cranes, and do not try to solve them when problems occur. This will not only increase the maintenance cost of the equipment, but also seriously affect its work efficiency.
3. Pay attention to the use of oil. Since the use of European standard single beam gantry cranes will inevitably cost a lot of costs in terms of hydraulic oil, lubricating oil and fuel, we suggest that you reduce or reduce the increase in fuel consumption.
4. To be familiar with the maintenance methods of the European standard double girder crane.Adopt effective methods to deal with various problems in a timely manner to avoid a series of chain reactions caused by failures.

Any questions of gantry cranes, please feel free to let us know.