7 أشياء يجب التحقق منها قبل شراء حفارة ساني مستعملة

When buying a used Sany excavator, it is crucial to understand its working condition and quality. Since the use of a used excavator directly affects its performance and maintenance costs, evaluating the true condition of the machine becomes the key to the purchase decision. Today we will also focus on how to help you accurately evaluate the quality of a used Sany excavator through professional means and careful observation.

1. Check the working hours

The working hours are an important indicator for evaluating the status of a used excavator. Usually, the working hours of a Sany excavator are displayed on the dashboard, and the total working hours of the machine can be viewed. Generally speaking, the fewer the working hours, the less wear and tear of the machine and the longer the service life. However, the quality of the machine cannot be fully judged by the working hours alone, and a comprehensive evaluation must be combined with other factors.

2. Check the appearance and structure

The appearance inspection can intuitively reflect the use of the machine. Observe the body, chassis, hydraulic system, bucket and other parts of the excavator to see if there are obvious cracks, rust, deformation and other damage. If a Sany excavator is well maintained, the appearance will usually remain in good condition, and the structural parts will not be excessively worn or significantly damaged.

3. Check the engine and hydraulic system

The engine and hydraulic system are the core parts of the excavator. Start the engine, listen for any abnormal noise or vibration, and check whether the engine’s emissions are normal. The working condition of the hydraulic system is also very important. After starting the machine, observe whether the various operations are smooth, such as whether the digging, rotation, lifting and lowering movements are flexible and without abnormal noise. If the hydraulic system leaks or moves slowly, it may mean that there is a fault inside the system.

4. Check the operating performance

Perform actual operation tests on the machine to observe whether the various functions are working properly. During operation, pay attention to the machine’s response speed, stability, and whether the movement of each component is smooth. For example, the operation of the excavator arm, bucket, rotating platform and other components should not be stuck or make abnormal noises, and the movement should be smooth and powerful. If there is obvious resistance or abnormal sound during operation, it may indicate a mechanical failure.

5. Check the fluid and lubrication

Check the level and quality of the engine oil, hydraulic oil and coolant to see if there is obvious contamination or lack of lubrication. Contamination and deterioration of the oil quality usually mean that there is greater wear inside the machine or a major repair is required. Regular oil changes are an important maintenance measure to keep the machine running well.

6. Check the maintenance records

Ask the seller whether to provide the machine’s maintenance and repair records. A used Sany excavator with a good maintenance record is usually more reliable than those that lack maintenance. The maintenance record can reflect whether the machine has been overhauled or failed, and the maintenance content and frequency can also provide a strong reference for evaluating the quality of the machine.

7. Conduct professional inspections

If conditions permit, you can ask professional technicians to conduct a comprehensive inspection of the used excavator, including engine compression, hydraulic system pressure, and wear of chassis components. These inspections can reveal some potential faults and avoid sudden problems during use.

Through the above comprehensive evaluations, you can effectively reduce the risk of purchasing a machine and ensure that you purchase a reliable used equipment. Shanghai Kunjue Construction Machinery Co., Ltd. We are committed to providing customers with high-quality used excavators, and through professional inspections and strict quality control, we help customers make wise purchasing decisions.