How To Remotely And Initially Screen Reliable Second-hand Rotary Drilling RIGS When Purchasing Them in A Different Location?

When purchasing second-hand rotary drilling RIGS in a different location, as it is impossible to conduct on-site and immediate inspections, remote preliminary screening becomes the key to avoiding risks. Judging the condition of equipment through scientific methods can reduce the blindness of subsequent on-site inspections and improve transaction efficiency.

1. Verify equipment files: Request the seller to provide original documents such as factory certificates of conformity, purchase invoices, and maintenance records, and check whether the numbers are consistent with the equipment body. Make sure there is no mortgage and no property rights disputes to avoid buying a "problematic machine".

2. Video detail verification: Ask the seller to shoot a 360-degree video of the body, highlighting the nameplate, worn parts (such as drill pipe joints, tracks), and core components (engine, hydraulic oil tank); It is required to start the equipment and observe the idle speed stability and the color of the exhaust smoke.

3. Working condition data query: If the equipment is equipped with an intelligent monitoring system, request the working hours, load curves and other data of the past six months to determine whether it has been operating under heavy load for a long time. If there is no system, the seller shall specify the main construction geological conditions (such as soft soil and rock strata) and assess the degree of wear and tear.

4. Maintenance record traceability: Inquire in detail about major maintenance histories, and require the provision of maintenance lists and the brands and models of replaced parts; Pay special attention to key information such as major engine overhauls and hydraulic system replacements to avoid concealing core faults.

5. Seller qualification verification: Check whether the seller is a legitimate distributor or a qualified enterprise, and review their past transaction evaluations; Individual sellers need to verify their identity information and confirm that it is consistent with the device registrant to reduce the risk of fraud.

6. Third-party initial inspection entrustment: Entrust a professional testing institution at the location of the equipment to conduct a preliminary assessment and issue a test report including structural components and power systems. The expenses can be agreed to be advanced by the buyer and borne by the seller after the transaction is successful.

When purchasing a second-hand rotary drilling rig in a different location, remote screening requires careful consideration at every step. Through methods such as file verification, video machine inspection, and data traceability, the authenticity and condition of the equipment can be initially determined. It is recommended to screen out 2 to 3 high-quality candidate devices first, and then arrange on-site inspections to minimize the risks of transactions in different locations to the greatest extent.