When Buying A Second-hand Rotary Drilling Rig, Should One Consider Its "origin"? The Difference between Original Factory Machines And Refurbished Ones

In the second-hand rotary drilling rig market, "origin" often determines the true value and subsequent performance of the equipment. Original factory machines refer to equipment produced by brand manufacturers that has not undergone major modifications by third parties, while refurbished machines are mostly assembled by small factories or individuals by replacing old parts and refurbishing the appearance. The differences between the two are significant, and careful discrimination is necessary when purchasing.

1. Performance stability: The core components of the original factory machine have a high matching degree, and the hydraulic system, power unit, etc. operate in coordination, making sudden malfunctions less likely to occur during construction. Refurbished machines often have compatibility issues due to the disordered sources of their components and are prone to "breaking down" during heavy-load operations.

2. Service life: The key structural components of the original factory machine (such as drill pipes and power heads) have undergone strict fatigue tests, and the remaining service life can be estimated. Refurbished machines mostly use aged components, and hidden wear and tear is hard to detect. Their overall lifespan may be shortened by more than half.

3. Safety factor: The safety protection devices of the original factory machine (such as overload protection and emergency braking) are complete and effective, meeting the factory standards. Refurbished machines may omit or modify safety components to cut costs, and there are risks such as overturning and component breakage during construction.

4. Price and cost performance: The quotations for original factory machines are usually higher than those for refurbished ones, but they have stable performance, a lower failure rate, and a lower overall usage cost. The initial price of refurbished machines is attractive, but if they are frequently maintained, the long-term investment may exceed that of original factory machines.

5. After-sales Service: Original factory machines have traceable factory records. Some brands offer extended warranties or official repair support. Refurbished machines have no formal after-sales service system. Fault repair relies on third parties, and the parts have poor compatibility and a long cycle.

6. Residual value: Due to the quality recognition of original factory machines, they depreciate slowly and have strong liquidity when resold for the second time. Refurbished machines, due to their ambiguous "origin", have low market acceptance and their prices often drop significantly when they are resold.

In conclusion, when purchasing a second-hand rotary drilling rig, one must pay attention to its "origin". Although the initial investment in original factory machines is relatively high, they have more advantages in terms of performance, safety and long-term cost, and are suitable for long-term engineering needs. Refurbished machines need to be carefully evaluated. They are only recommended for short-term emergency use by buyers who have professional maintenance capabilities. When making a choice, be sure to check the equipment file and give priority to second-hand equipment certified by the original factory.