Rock strata have high hardness and dense structure. When second-hand rotary drilling RIGS are in operation, problems such as slow drilling, rapid wear and tear of accessories, and great difficulty in hole formation are prone to occur. With targeted special accessories, it can effectively cope with t Read More

The foundation of high-rise buildings needs to bear huge vertical loads, and has extremely high requirements for the depth, diameter and quality of the drilled holes. The model matching degree and accessory compatibility of second-hand rotary drilling RIGS directly determine the efficiency and safet Read More

Bridge construction has strict requirements for the accuracy, depth and stability of drilling. The drill pipe and drill bit of second-hand rotary drilling RIGS, as core working components, directly affect the quality of hole formation and construction safety. The following six key perspectives are p Read More

The hydraulic system is the "power heart" of a second-hand rotary drilling rig, and its performance directly affects the drilling efficiency and operation safety of the equipment. The hydraulic system of second-hand equipment is prone to malfunction due to wear and tear from previous use and aging o Read More

The drill bit of a rotary drilling rig is its "powerful tool" for operation. Different drill bits are suitable for different strata and construction requirements. Choosing the right drill bit can enhance drilling efficiency and ensure project quality. The following introduces six commonly used drill Read More