As the "underground pioneer" in engineering construction, the residual value rate of rotary drilling RIGS in second-hand transactions is the core concern of both buyers and sellers. The residual value rate not only reflects the remaining value of equipment but is also a key indicator for measuring i Read More

In the trading of second-hand rotary drilling RIGS, "hours" are often used as a reference to measure equipment wear and tear, but some merchants may tamper with the data. Learning to distinguish its authenticity is the key to avoiding falling into a trap.1. Compare equipment wear: If the hour displa Read More

The "working condition adaptability" of second-hand rotary drilling RIGS refers to the degree of matching between the equipment performance and the specific construction scenario. It directly determines whether the equipment can operate efficiently. If the compatibility is poor, even the cheapest eq Read More

In the construction of rotary drilling RIGS, curved holes and skew are common quality problems, mostly caused by complex geological conditions and improper operation. If not dealt with in time, it may lead to consequences such as the inability to lower the steel cage and uneven force on the pile bod Read More

The difficulty of rotary drilling rig operation is closely related to the soil quality. The physical and mechanical properties of different soil types vary greatly, which has a significant impact on drilling efficiency and equipment wear and tear. Understanding which soil types are easier to apply c Read More