Five practical tips for buying a used Sany excavator

When buying a used Sany excavator, you need to pay special attention to the overall condition of the equipment, maintenance records, and usage history. Here are five practical tips to help you make a smarter choice:

1.Check the working hours and usage history
The working hours are an important indicator for judging the usage condition of the excavator. Sany excavators are designed to be more durable, but high working hours mean that the machine has experienced more workloads and may have more wear and tear.
Suggestion: Try to choose equipment with moderate working hours (about 3,000 to 6,000 hours). At the same time, ask the seller about the usage history of the equipment, including whether it is used for heavy-duty operations and whether it has undergone major repairs.

2.Check the hydraulic system and performance
The hydraulic system is one of the core components of the excavator, which directly affects the working efficiency and operating stability of the excavator. Wear or leakage of the hydraulic system may lead to high repair costs.
Suggestion: Check the color and cleanliness of the hydraulic oil to avoid dirty or dark oil. At the same time, test whether the hydraulic operation is smooth and the action is sensitive through the test machine, especially pay attention to whether there is hydraulic oil leakage.

3.Check the engine and electronic control system
The state of the engine directly determines the power and working performance of the excavator. The engine of a second-hand excavator usually has a certain amount of wear, but it is still necessary to confirm whether the engine is running smoothly.
Suggestion: Start the engine and check whether it has abnormal noise, difficulty starting or smoke. Check whether the engine oil is clean and whether the filter element and air filter need to be replaced. Also check whether the electronic control system is working properly to ensure that there are no alarms or fault codes.

4.Check the chassis, tracks and structural integrity
The state of the chassis, tracks and various key load-bearing components is crucial to the stability and service life of the excavator. Excessively worn tracks or damaged chassis structures will increase the cost of subsequent repairs.
Suggestion: Check the wear of the tracks, pay attention to the wear of the inner and outer edges, the tension and relaxation of the chain. Check the chassis and body frame for cracks or obvious damage, especially in the load-bearing parts.

5.Confirm maintenance records and maintenance history
The maintenance records of second hand construction equipment can reflect its maintenance status and long-term use. Equipment that is regularly maintained usually has a longer life and lower failure rate than those that are poorly maintained.
Suggestion: Ask the seller for detailed repair and maintenance records, focusing on the maintenance of important components such as the hydraulic system, engine, and transmission. Records of regular oil and filter changes are a sign of good maintenance.

When buying a second-hand Sany excavator, in addition to checking the basic appearance and structure, the key is to pay attention to the hydraulic system, engine status, chassis wear, and equipment maintenance records. Through comprehensive inspections and test drives, combined with detailed information provided by the seller, you can better evaluate the remaining use value of the equipment and avoid buying second-hand equipment with hidden dangers.