How To Choose A Second-hand Rotary Drilling Rig for Municipal Engineering? There Are Certain Considerations When It Comes To Accessory Matching

In municipal engineering construction, second-hand rotary drilling RIGS have become the choice of many construction parties due to their high cost performance. However, choosing the right equipment and assembling the right accessories are the keys to ensuring construction efficiency and safety. Below, we will popularize the key points for choosing second-hand rotary drilling RIGS and the skills for matching accessories from six core dimensions.

1. Check the wear of core components: Focus on inspecting the curvature and welds of the drill pipe. If there is obvious deformation or crack, choose with caution. At the same time, check the fuel consumption and noise of the engine during operation to ensure there is no abnormal wear and tear. This is the foundation for the stable operation of the equipment.

2. Consider the performance compatibility of the equipment: According to the drilling depth and diameter requirements of municipal projects, match the maximum drilling parameters of the drilling rig to avoid "overusing the material" or "a small horse pulling a big cart". For example, in urban road construction, models suitable for medium and shallow hole operations should be given priority.

3. Check the condition of the hydraulic system: Observe the color and clarity of the hydraulic oil. If the oil is turbid or contains impurities, it may indicate that there is a fault with the hydraulic pump or cylinder. During the test run, check the continuity of the actions to ensure that there is no lag in operations such as lifting and rotating.

4. Prioritize original factory compatible accessories: For vulnerable parts such as drill buckets and drill teeth, give priority to original factory accessories that match the brand of the drilling rig. Their dimensional accuracy and wear resistance are more in line, which can reduce the risk of accessory detachment and damage during construction.

5. Select specialized accessories based on geological conditions: For common clay layers in municipal engineering, a spiral drill bucket can be used to enhance the efficiency of soil discharge. When encountering pebble layers, wear-resistant cutting teeth should be selected to avoid construction stagnation due to unsuitable accessories.

6. Pay attention to after-sales service and inventory of spare parts: Choose spare parts with stable after-sales channels and easy procurement, such as drill bits, hydraulic filter elements and other commonly used parts. It is necessary to confirm whether the supplier can replenish the goods in time to avoid delays in the project schedule due to spare parts shortages.

In conclusion, when choosing a second-hand rotary drilling rig, one should focus on the core components, performance compatibility and system status. As for the accessory matching, it is necessary to take into account the original factory compatibility, geological matching degree and after-sales guarantee. Only by combining the selection of equipment with the matching of accessories can second-hand rotary drilling RIGS achieve their maximum value in municipal engineering and reduce construction costs and risks.