How To Judge The Service Life of Second-hand Rotary Drilling Rig

1. Check the appearance of wear: If the drill shell, drill pipe and other parts have a large number of scratches and deformation, it indicates that it is used frequently, which may affect the subsequent life.

2. Check working hours: the number of working hours is large, the components run for a long time, wear accumulates, and the remaining life is shortened accordingly.

3. Check key components: such as power head, track, etc., if the wear is serious, the gap is too large, it will reduce the overall performance and life of the rig.

4. Understand maintenance records: Frequent maintenance, especially for core components, suggests that the equipment has hidden dangers, service life or greatly reduced.

5. Evaluate the hydraulic system: the hydraulic oil is turbidity, leakage, and the system pressure is unstable, indicating that the hydraulic system is aging, affecting the operation life of the rig.

6. Test operation performance: slow start, weak drilling, and inflexible control mean that the rig is in poor condition and has a limited service life.

7. Conclusion: Through the appearance, working time, component condition, maintenance history, hydraulic system and operational performance and other aspects of judgment, can accurately estimate the service life of second-hand rotary drilling rig, to provide a basis for purchase decision.