Rotary drilling rigs are common equipment for pile foundation construction. In recent years, domestic brands of rotary drilling rigs have developed rapidly, and there are many mainstream manufacturers, which can be confusing for buyers. So, how should we choose a rotary drilling rig? Below, Mr. Li, the sales manager of the rotary drilling rig department of Shandong Liqiang Machinery Co., Ltd., mainly focuses on the classification of drilling rigs and details the issues we should pay attention to when purchasing a rotary drilling rig.drilling machine for pile foundationd
Classification of Rotary Drilling Rigs:
The principle for choosing a rotary drilling rig should be to meet the user's current main project needs while also considering potential future project needs. Performance parameters should allow for future development. Rotary drilling rigs are classified into three types based on their main working parameters, torque, engine power, drilling diameter, drilling depth, and rig quality:
Wheel-mounted Rotary Drilling Rigs
Wheel-mounted rotary drilling rigs are generally suitable for bored piles with a hole diameter of 1-15 meters and a diameter of 1.2 meters. These machines are flexible and convenient to move, requiring no trailer and can be driven directly to the construction site. However, they also have disadvantages, such as difficulty in moving on slippery terrain and slower pile positioning speed.drilling machine for pile foundation
1-25 meter Tracked Rotary Drilling Rigs
Compared to wheel-mounted rotary drilling rigs, these machines have faster drilling speeds and higher efficiency. However, they require a trailer for relocation. The fees are higher than wheeled rotary drilling rigs, but customers have stronger trust in them. For example, if a tracked rig charges 10,000 yuan for drilling a pile for the same purpose (building a house), customers are more likely to accept it, while a wheeled rig charging 8,000 yuan might seem expensive to them.
25-40 meter rotary drilling rig
This machine costs twice as much as a 25-meter rotary drilling rig. It's a scaled-down version of a large rotary drilling rig, but its torque and power are comparable. This type of equipment is somewhat overkill for rural work and is inconvenient to move around in, as rural roads are generally narrow. It's the only suitable machine for large-scale engineering projects.drilling machine for pile foundation
