We all know that whatever is in use has a life span. So how does our grab wear out in use? How can we extend its life? Now let's take a look at Xinshi Machinery in Jiangdu District of Yangzhou City.

_The common failure in grab use is abrasive wear. According to the analysis of relevant data, it can be found that about 40% of the grab failures are due to tip pulling wear, 30% are due to edge wear, and about 30% are due to pulley wear and other parts damage.

It can be seen from this that improving the wear resistance of grab pin shaft and axle sleeve and improving the wear resistance of bucket edge are important ways to improve the service life of grab. The factors affecting material wear are external factors and internal factors. External factors include load, sliding speed, abrasive hardness and geometry. Internal factors include chemical composition, carbide type and microstructure of materials. External factors are self-evident, and there is not a single description here. In order to improve the service life of the grab, different wear-resistant materials should be selected according to the different wear parts of the grab, and different processing techniques should be supplemented, so as to greatly improve the service life of the grab.

Owing to the frequent use of grabs and the limited operation level of ship unloader drivers, the failure rate of grabs is very high. Therefore, the inspection of these parts should be strengthened in the daily inspection process. At the same time, the maintenance of these parts should be done well, so as to shorten the service life of grabs and improve productivity.