The hydraulic system is the "blood vessel" of a second-hand rotary drilling rig, and its condition directly affects the performance and lifespan of the equipment. When inspecting the machine, grasping the key details can help quickly determine the true condition of the hydraulic system and avoid mak Read More

The performance condition of second-hand rotary drilling RIGS is closely related to the degree of wear and tear of key parts. A comprehensive inspection can effectively avoid the risks of purchasing the machine. The following six core parts need to be given special attention.1. Hydraulic system: Che Read More

To determine the "age" of a second-hand rotary drilling rig, it is not only necessary to look at the factory time, but also to combine the actual usage marks. Accurately identifying the service life can help you avoid severely aged equipment. The following six methods can be used as references:1. Ch 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 drill pipe of a rotary drilling rig is the core component for transmitting torque and axial force. As two mainstream types, the machine lock rod and the friction rod have significant differences in structural design and applicable scenarios. Understanding the differences between the two can help Read More