How to choose a high-quality second-hand excavator

　　When we choose a second-hand excavator, the first thing we consider is the brand. This is very important. Under the same use status, well-known brand excavators have better performance and value retention. This is different in each country. Before choosing a second-hand excavator, do a good market survey to find out which brand is more popular in the city or country. For example, Caterpillar, Komatsu, Volvo, Hyundai, Hitachi, Kobelco, Liebherr and other brand equipment have a high market activity for new and second-hand excavators. After using it for a period of time, you can sell it at a better price, and good quality during use brings higher work returns. But in addition to these, what else do we need to know?

　　1. Excavator work history

　　For the work experience of the excavator, you can intuitively understand the overall status of the excavator. Many users here have certain requirements for using breakers or tools with large equipment loads. In the second-hand excavator market, if such tools have been used, the price of equipment is often lower than that of earthmoving equipment. The working environment mainly refers to the type of work that the excavator mainly does, such as mines, rocks, urban construction, etc. The work that is less burdensome for the excavator has less wear on the excavator and is more popular in the market. Understand the maintenance history. The excavator needs regular maintenance. Most excavators will have detailed records, and even if there is a failure, there will be a maintenance record to let the buyer know the failure during the excavator's use cycle.

　　2. Excavator condition

　　We observe the wear status of the excavator hardware with the naked eye, including the arm, boom, bucket, crawler, and chassis to observe the wear, and identify the wear through simple operations. Focus on the excavator's engine, hydraulic pump, and the entire hydraulic system. The engine's noise, speed, power, hydraulic pump abnormal sound, and temperature can all be shown through testing. The chassis and electronic system can be directly distinguished by professional technicians.

　　3. Performance test

　　If conditions permit, Tiedou strongly recommends that users invite a professional excavator operator to conduct the test. For excavator testing, Tiedou provides a simulated construction site of more than 500 square meters to test various combined movements and walking of the excavator. In addition to observing the working status of the excavator, the test equipment for exhaust emissions, noise status and load pressure testing is also checked to see if there are any abnormalities. This is very important when choosing a used excavator. If conditions do not permit, Tiedou provides professional technical testers to conduct a comprehensive performance test of the excavator for 3-6 hours.

　　4. Third-party testing

　　There are few third-party testing agencies for second-hand excavators, but Tiedou provides professional testing instruments that can provide detailed data testing for the hydraulic system and engine.

　　5. Information reliability

　　In addition to the second-hand online platform and auction, there are a lot of buying and selling information available when choosing a second-hand excavator. How to distinguish reliability and strength? Tiedou has used more than 3.000 excavators. These excavators are concentrated on the site. Users can first identify them through the Internet. After confirming that the information is correct, they can come to the site in person to choose to buy. However, we also need to filter out some false information on the Internet, some price information does not conform to the market situation, and some deliberately exaggerate the equipment information. These all require our attention. Price is the part we care about most. In order to achieve long-term cooperation, we will reduce profits to the minimum, and increase the buyer's profit ratio through a win-win cooperation model. Tiedou has always adhered to a user-centered cooperation model, dedicated service, and provides a 3-12 month warranty service for excavators to reduce user risks.