What Are the Working Contents of the Rotary Drilling Rig
In the global construction industry, rotary drilling rigs are indispensable core equipment for pile foundation construction, widely used in bridges, high-rise buildings, municipal engineering, port terminals and other fields. As a professional manufacturer of rotary drilling rigs, Puhua Energy Equipment Technology (Shandong) Co., Ltd. has been committed to providing high-quality, efficient and stable rotary drilling rig equipment for foreign trade customers around the world. Many overseas customers have questions about the specific work content of rotary drilling rigs. Today, we will give a detailed explanation of the work content of rotary drilling rigs, share real customer feedback, and let you know more about our company and our products.
1.The first link is pre-construction preparation, which is the foundation of the smooth operation of the rotary drilling rig.
Before the formal operation, the operator needs to check the equipment comprehensively, including the performance of the power system, the flexibility of the hydraulic system, the wear of the drill bit and the tightness of the drill pipe. At the same time, it is necessary to combine the geological survey report to adjust the drilling parameters, such as selecting the appropriate drill bit type according to the soil layer, sand layer or weathered rock stratum, and determining the drilling speed and pressure. Puhua Energy’s rotary drilling rig is equipped with an intelligent control system, which can automatically adjust the parameters according to the geological changes, greatly reducing the difficulty of pre-operation preparation and improving the work efficiency.
2.The second link is positioning and leveling, which directly affects the accuracy of pile forming.
The rotary drilling rig needs to be accurately positioned according to the design coordinates of the pile position, and the levelness of the equipment is adjusted through the telescopic crawler chassis to ensure that the drill pipe is vertical during the drilling process, so as to avoid the deviation of the pile hole and affect the stability of the subsequent building structure. Our rotary drilling rig is equipped with a high-precision positioning system and a large-diameter slewing bearing, which can effectively control the hole slope within 1%, ensuring the positioning accuracy and strong anti-overturning ability, which is especially suitable for construction in dense urban areas or complex terrain.
3.The third link is the core drilling operation, which is the key part of the work content of the rotary drilling rig.
During the operation, the power head drives the drill pipe and the drill bit to rotate at high speed, and the cutting edge of the drill bit crushes the soil or rock layer. The cut dregs enter the drill bucket through the bottom door of the drill bit. When the drill bucket is full, the drill pipe stops rotating and is lifted to the ground, and the dregs are unloaded by opening the door. Then the drill pipe is lowered again to continue drilling, and the cycle is repeated until the designed hole depth is reached. According to different geological conditions, the rotary drilling rig can adopt mud wall protection or dry operation. For soft soil layers, mud wall protection is used to stabilize the hole wall and carry dregs; for stable stratum, dry operation is adopted, which is more environmentally friendly and free of mud discharge.
4.The fourth link is post-drilling treatment, which is the guarantee of pile foundation quality.
After the drilling reaches the designed depth, the rotary drilling rig needs to clean the hole to remove the sediment at the bottom of the hole and ensure that the sediment thickness meets the construction standards. Then, with the help of auxiliary equipment, the steel cage is hoisted into the pile hole, and finally concrete is poured into the hole to complete the whole pile forming process. Puhua Energy’s rotary drilling rig is matched with a high-efficiency cleaning system, which can quickly clean the hole and reduce the construction cycle. At the same time, it can be perfectly matched with cranes, concrete pumps and other auxiliary equipment to form a complete construction closed loop.
Mr. Carlos, a construction contractor from Brazil, who has purchased 3 sets of Puhua Energy’s rotary drilling rigs, said: “We used to use other brands of rotary drilling rigs, but there were always problems such as low drilling efficiency and poor stability in complex stratum. Since we used Puhua’s rotary drilling rigs, the construction efficiency has been improved by 30% compared with before. The equipment is equipped with a high-power turbocharged engine, which has low fuel consumption and high rock entry efficiency. Even in the pebble layer, it can work stably. The intelligent control system is very easy to operate, and our operators can get started quickly. In the construction of the local urban viaduct project, Puhua’s rotary drilling rigs ensured that we completed the pile foundation construction ahead of the schedule, which won us high praise from the project party. We will continue to cooperate with Puhua Energy and purchase more equipment in the future.”
These real customer feedbacks are not only the recognition of our rotary drilling rig products, but also the motivation for Puhua Energy to keep forging ahead. As a professional rotary drilling rig manufacturer, Puhua Energy Equipment Technology (Shandong) Co., Ltd. was established on January 21, 2025, with a registered capital of 10 million yuan, located in Jining High-tech Industrial Development Zone, Jining City, Shandong Province. We are mainly engaged in the R&D, production and sales of construction machinery such as rotary drilling rigs, and have the qualification of general taxpayer and the right to import and export, which can provide one-stop services for foreign trade customers around the world.
As a professional rotary drilling rig supplier and manufacturer in China, Puhua Energy is committed to providing cost-effective rotary drilling rig equipment for foreign trade customers. Our products are exported to more than 20 countries and regions, including Southeast Asia, Africa, Europe, South America and the Middle East, and have won a good reputation in the international market. We can provide customized product solutions according to the specific needs of customers, and provide professional technical guidance, after-sales maintenance and other services to solve the worries of customers in the process of use. At the same time, we have a complete logistics and transportation system, which can deliver the equipment to the customer’s designated location on time, ensuring the smooth progress of the customer’s project.
