Second, you can publish purchase information.
1. Enter the member background and select "Add Purchase" in "My Purchase".
2. Pop up a demand sheet for purchasing equipment and fill it in carefully. The website can match the most satisfactory second-hand equipment.
3. The submitted information will be displayed in the "Purchase Information" column on the homepage of the website after being audited by the website administrator. If a seller meets the demand for car purchase, he will send a letter in the station.
It is a common function for buyers to find equipment on the website:
1, "Announcement of the same model", a common function of members. After selecting this subscription function, you can view the release dynamics, vehicle location, price and other information of the models you subscribed to in the Member Center.
2 "Send to mobile phone for free" function, after the buyer selects a satisfactory vehicle, he can forward the vehicle information to the designated mobile phone for free, so as to contact the owner offline.
Three. Matters needing attention in purchasing second-hand construction machinery:
(1) Second-hand construction machinery is generally cheaper, but you should pay attention when buying it.
1, many don't have three guarantees. For example, excavators should pay attention to the fact that the hydraulic servo joystick is better than the old joystick, and bulldozers are sometimes not standard.
2. Of course, I want to find a device with articulated boom, which is convenient for working near buildings and auxiliary pipelines;
3. Zero-tail rotation is particularly important for builders who need to work in a compact environment.
(2) About the bucket and boom:
1. Excavators are not always used as digging machines, and builders sometimes use them to pile piles or lay pipelines. Therefore, you need to pay attention to the situation of the bucket to ensure that there is no problem with the piling, crushing and walking devices.
2. Another important part is the connecting pin and bushing of the bucket cylinder. Be sure to check the tightness of these places. Many problems are caused by neglecting maintenance and inspection. When you start the machine to move the bucket, stick and rear arm, you may see the pin or cylinder move, but the stick and bucket do not move. This is caused by the looseness of pin shaft and bushing parts.
3. Another key point is to carefully check the connection between the boom and the excavator. If the connection under the boom is excessively worn, it may lead to the loss of the whole equipment value.
(3) It is very important to check the hydraulic cylinder and tubing:
1, oil leakage means that the whole oil circuit may be polluted. In the best case, the chrome-plated surface of the hydraulic cylinder has no scratches, dents or oil leakage. If the hydraulic oil oozes, it means that dust may have polluted the hydraulic system.
2. Also make sure that the cylinder wall is not damaged or sunken. The gap between the cylinder and the cylinder wall is very small. As long as there is debris in the pipeline, a large amount of metal debris will be produced during the work due to the wear of the oil cylinder and remain in the hydraulic system.
(4) Be alert to welding on the car body:
1, carefully check whether there are cracks on the excavator and welding traces left by the original factory. These things show that this machine has been overused.
2. Another good method is to put a straight plate at the position of the rear arm and the bucket arm to see if there is any dislocation or distortion. Pay special attention to the repair of redundant steel plates.
There may be some scratches and dents on the second-hand machine, but if there are too many patches on the machine, it may mean that this equipment has been used for a long time.
(5) Rubber track and chassis:
Rubber tracks on small excavators are different from steel tracks on large machines, and are suitable for grass and driveways. Many times, you don't check the wear of rubber tracks at close range like steel tracks. Therefore, you will only see the wear and tear of rubber tracks, but not a lot of wear and tear of sprockets and rollers.
2. We can estimate the usage of rubber tracks by checking the cracks on the tracks and the wear of the edges, and at the same time pay attention to the height of the tread, just like paying attention to the tire tread when watching the tire wear. The working life of rubber crawler is also very different due to the different use methods and soil conditions. Generally speaking, its average life span is about 2000 hours. However, if you work in an environment with rocks or easy wear, your service life will be halved;
On the contrary, in a better environment, the working life will be doubled. When you check the track and chassis, don't forget to check the oil level and cleanliness before driving. This part is easily overlooked, and there is usually little oil left. If the amount of oil is already small, water or other things will enter, which will cause more trouble.
(6) It is best for people in the industry to participate in the assessment.