How Many Years Will A 50 Ton Bridge Crane Last?

How many years will a 50 ton bridge crane last?

The design life of bridge cranes is generally 20-30 years.

The operating level of an overhead crane depends on its level and load status. It can be said that the working level is fixed, and under a certain load state, it has a certain number of working cycles, that is, life.

Generally speaking, the service life of bridge cranes A1~A2 (working level) is 30 years, that of A3~A5 (working level) is 25 years, and that of A6~A7 (working level) is 20 years.

Scrap life of lifting machinery:

In the whole life of any bridge crane (regardless of the lifting capacity is 10 ton, 50 ton, 100 ton, etc.), although it will undergo several overhauls, some vulnerable parts will be replaced every overhaul Parts, such as steel wire ropes, rolling bearings, open gears, wheels, brake friction plates, brake wheels, electrical equipment, etc., the replacement of these parts does not mean the end of the life of the entire crane.

For cranes, once the structure of the crane cannot work normally, the structure of the crane will stop working and continue to show severe fatigue cracks, so that the whole crane cannot work safely.
Therefore, the safe life of the bridge crane mainly depends on the life of the metal structure without fatigue cracks.

Factors affecting the life of bridge cranes:

When the temperature is too high or too low, it will affect the working functions of the various mechanisms of the bridge crane. Parts are easy to age and freeze, hydraulic oil is easy to deteriorate, mechanical parts wear aggravated, and the performance of mechanical parts and materials changes. These problems easily affect the life of the bridge crane.

If dust, metal shavings and other impurities enter the domestic bridge crane, it will cause the surface wear of the parts, hinder the relative movement of the parts, aggravate the wear of the parts, deteriorate the oil, damage the barrier oil film, etc., which will cause various failures or damage to the bridge crane , thereby affecting its lifespan.

The acidic substances contained in the rainwater will corrode the structural appearance of the overhead crane, and some chemical substances will corrode the surface of the components of the overhead crane, which will greatly reduce the life of the overhead crane. Therefore, attention should be paid to the rain protection of overhead cranes and the chemical composition under operating conditions.

Unreasonable use has brought burdens to the engine and other components, such as overloaded lifting, long-term high-speed operation, etc. The final result is that the failure rate and damage rate of the bridge crane will increase, and its life cannot be guaranteed. Understand the characteristics and maintenance of bridge cranes, and pay attention to them in daily life.