2 hand digger

1. Nowadays, most people buy second-hand excavators, but the risk of buying second-hand excavators still exists, so how to choose second-hand excavators? Pay attention to the following aspects to observe the appearance of second-hand excavators:

carefully observe whether there are traces of spray paint on the door frame and window sealing strip. Any new paint marks cover up the defects that people don't want to know; Check the welding point of the frame under the back cover of the second-hand excavator, and carefully observe whether there has been any accident of the second-hand excavator. Second hand excavators. The original welding spot is smooth and small, and the later welding spot is rough and irregular. If the latter kind of welding point is present, it indicates that the second-hand excavator has had a serious accident. Besides, if the cab is deformed from the side, it indicates that something has happened to the excavator.

the wear level of the track of a second-hand excavator can reflect the frequent use level of a second-hand excavator. If the track is flat, observe the track wear level. There are no edges and corners at the edges, which indicates that the main driving frequency of the original second-hand excavator is high, and it is not very cherished. In this way, not only the track itself is in poor condition, but also the overall condition of the whole second-hand excavator is revealed, and many problems are hidden. If it is not the original track, it means that the car has done a lot of work, so that the track has been changed. The chain can also see the working condition of the second-hand excavator

the mechanical parts of the second-hand excavator

first observe whether the engine and hydraulic pump are disassembled for repair. If so, pay attention to it. Observe the color of the exhaust gas. If the exhaust gas is translucent light gray, observe the appearance and operation of the engine. Carefully check whether there is any trace of oil leakage outside the engine. Light up the engine. The engine works well; If it is blue, the engine is very tired; Red indicates that the cylinder gasket is about to be scrapped. Do the engine and hydraulic system make abnormal noises? Drive the throttle to the minimum. Lift the roof of the car to see if the car has any strength when the throttle is calibrated. If the car stalls, it means that the car has no strength China excavator website)

2. Where are you
Why do you want to buy a machine of about 120?
according to what you said about instry and mining, it's enough to buy a machine of about 8 tons
if you are afraid of fuel consumption, consider Kubota and Hitachi
there is less demand for 120 machines in the market, and it will be more difficult for you to get rid of them in the future.

3. With the national emphasis on second-hand equipment, the hot second-hand equipment market, and comprehensive evaluation, it is more appropriate to choose second-hand excavator. According to different demands, the locations of buying second-hand excavators are also different
the nearby second-hand equipment Market: for some drivers who don't know much about the Internet, they will choose the local second-hand equipment market. On the one hand, because of convenience, the local market can see the goods on site on the same day; On the other hand, it has high credibility. The on-site inspection of goods can check the equipment problems and solve their own worries. But the second-hand equipment market is relatively far away, not only inconvenient transportation, but also time-consuming and energy-consuming. Kunshan, Anshan and other places are famous for their second-hand equipment market
second hand equipment online mall: for drivers who are proficient in the Internet and want to choose more suitable price and better quality, second hand equipment online mall is the best choice. On the one hand, we can choose the best second-hand excavator by comparing the goods. On the other hand, the convenience of the Internet allows us to choose the second-hand excavator without leaving home, which will not waste our time and energy, and can also choose the excavator we like. The fly in the ointment is the need to wait for a few days for transportation, and some second-hand equipment sellers do not guarantee the quality of second-hand equipment. Second uncle second-hand equipment mall is an online second-hand equipment mall. In second uncle, every equipment has its exclusive broker. Without identity authentication, the equipment is not allowed to be put on the shelves to the warehouse. In other words, in second uncle, the quality of second-hand equipment is guaranteed. Second uncle equipment is very complete and secure, while the price is relatively cheap in the market. Buy second-hand excavator, second uncle second-hand equipment market is a very good choice
precautions: some people like the second-hand excavators eliminated from Europe and the United States very much, and feel that big brands are guaranteed; However, most of the second-hand excavators in the market are smuggled into our country, and the quality and quality can not be guaranteed. Some of them are even smuggled parts and then put together machines, which can not be used at all. Please shine your eyes when buying second-hand excavators, and buy them in legal and guaranteed places.

4. Pulling a chicken on the first floor will cost at most three hundred and fifty-six thousand. Under the best circumstances, I've been working for ten years. Don't talk nonsense if you don't understand

5. Hello, brother. What type of excavator do you need? To Shanghai Quanbao second hand excavator market headquarters to buy second-hand excavators, the company provides formal contracts and proceres, while providing fair property rights, purchase assured<

Quanbao Construction Machinery Co., Ltd.
135 pieces 8550 Jian 8585

6. With the continuous development of national construction, the demand for excavators is increasing, and the second-hand excavator market is in full swing. When many people decide to buy excavators, do they buy new excavators or second-hand excavators? The main reason is that the price of the new excavator is much higher than that of the second-hand excavator, especially for the rural areas and young people who are just starting to save as much as they can
What are the advantages of a second-hand excavator? We must not underestimate the second-hand excavator. Its high quality is not only cheap, it is true that the second-hand excavator can be much cheaper in terms of price, saving more money for construction and other projects
secondly, the reason why people choose to import second-hand excavators is actually to rece a lot of trouble. It is very troublesome to buy a new car, not only considering the issue of license plate, but also a waste of time. But the purchase of imported second-hand excavators is different. After the transfer of ownership, the vehicle can be used. There are not so many troublesome things, and a lot of time is saved
in addition, you don't have to worry about how to deal with the scrapped vehicle when you choose a second-hand excavator. In any construction project, whether excavators or other large-scale mechanical equipment, there may be all kinds of troublesome problems. If it is a brand-new vehicle, it must feel reluctant to do all kinds of maintenance work. But if it's second-hand, you don't have to worry about these problems. As long as you can ensure the smooth completion of the work, there won't be too much willing and unwilling, so people will be more willing to buy second-hand excavators
in the end, there is nothing wrong with the choice of imported second-hand excavators, which can ensure the smooth completion of the work after a project. You know, some second-hand excavators are not as shabby as you think. They are called second-hand excavators only because they have been used before. In fact, the parts of each part are still very rable
then, how to estimate the value of a second-hand excavator has become a crucial topic
how much is a second-hand excavator worth? At present, there is no perfect specific standard for the evaluation of second-hand excavators in China, and most people can not relatively accurately evaluate the value of second-hand excavators
referring to the opinions of netizens, here is a general evaluation method, which is divided into basic price and adjustment price
basic price of excavator - the basic price of excavator is determined according to how long it works
in China, the equipment life of construction machinery is generally designed to be about 10 years. Even if it can still be used after working for ten years, its price will be lower
the average working time of an excavator is about 2000 hours a year. Under the normal working environment, the overhaul cycle of the engine is about 10000 ~ 15000 hours, the service life of the hydraulic pump is generally more than 20000 hours, and the service life of other parts into the motor, gearbox, main control valve, etc. will be longer
I mean, if a new excavator doesn't have an accident in five years, it doesn't need to be overhauled. According to the current depreciation standard, the price of the new machine will be reced by 20% in the first year, and then by 5% every year. After five years, e to the aging and wear of some parts, a series of renovations need to be carried out on the excavator. In this way, the depreciation rate of the excavator will be stabilized at 5% or lower, so the price will fall steadily. With the renewal of technology and the overall aging of the excavator itself, the price will drop to less than 20% of the whole machine price after 10 years
excavator adjustment price - after the basic price is determined, an adjustment estimation can be made according to the different conditions of each machine
engine: normal starting, no exhaust, normal exhaust, even sound at low, medium and high speed; There is no oil leakage; There is no high temperature in the test, and the appearance is good
hydraulic part: the appearance of the oil cylinder is normal and there is no oil leakage; The piston rod has no strain, peeling or turning. When the rotary motor rotates, it is easy to start, the parking drift is small, there is no abnormal noise, no oil leakage, and it is easy to turn around normally. Can walk normally
slewing system: normal appearance, small bearing clearance; The big arm swings little from left to right
electrical part: electrical instruments and other functions are complete
there is no deformation, oil leakage and water leakage in each oil tank and radiator
cab: complete and no deformation
there is no deformation and cracking in each cover, cover, guard plate and frame
working device: the big and small arm shovel bucket is normal, cracking, deformation, reprocessing, etc
walking part: the four wheels are worn normally. There is no defect and deformation
if all the above items are normal, then the adjustment price of this excavator is 0. If there are problems, then the adjustment price is the cost price needed to restore the normal function of the part. The final price of the equipment is the basic price minus the adjusted price of all parts that need to be repaired
that is: final price of equipment = basic price - adjustment price
in addition, if the important parts of the excavator have been overhauled or altered, the price should be increased or decreased accordingly
in the specific on-site evaluation, e to the different working conditions and preferences of the models, different people may give different prices for the same equipment, and the price difference is not small
then, when buying second-hand excavators, diggers must investigate the local market in advance, and try their best to buy as many parts as possible for the details of excavators. I hope diggers can buy excavators that satisfy their own needs.

7. Cheap excavators are all over the country now. The key is how many floors you need and how large the tonnage is. In terms of brand, the original imported brands, such as Komatsu Hitachi, are now assembled in China, and many parts are also made in China, which are similar to the excavator configurations of domestic brands such as Xiagong, Liugong and sany.

8. Why not consider the new car? If the imported second-hand excavator can be sold to more than 100000, it can almost be scrapped. If it is domestic, for example, Xinyuan excavator can buy a brand-new one after adding 50000 or 60000. Why buy a second-hand one? There are also some second-hand domestic machines with a price of only 40000 or 50000 yuan, but the ones bought back usually need to be overhauled, which is not cost-effective. You can have a look at domestic machines with similar prices

9. Carefully check whether there are cracks on the excavator and welding marks left by non original manufacturing, which indicates that the machine has been overused. Another good way is to use a straight plate to place the rear arm and stick to see if there is any dislocation or distortion. Special attention should be paid to the repair of rendant steel plates. Second, there may be some scratches and dents on the mobile phone, but if there are too many patches on the machine, it may mean that the device has been used for a long time. Rubber track and chassis the rubber track of small excavator is different from the steel track of large machine. It is suitable for grass and driveway. Most of the time, you don't check the rubber track for wear as closely as you check the steel track. As a result, you only see the wear of the rubber track, but not a lot of wear on the sprocket and idler. The usage of rubber track can be estimated by checking the cracks on the rubber track and the wear of the edge. At the same time, pay attention to the height of the rib, just like paying attention to the tire tread when looking at the tire wear. Due to the different use methods and soil conditions, the working life of rubber track is also very different. Generally speaking, its average life is about 2000 hours. But if you work in the environment with rock or easy to wear, the service life will be halved; On the contrary, in a better environment, the working life will be doubled correspondingly. When you check the track and chassis, don't forget to drive again to check the oil level and cleanliness. This part is easy to ignore and usually leaves little oil. If the amount of oil is already very low and water or other things enter, it will cause more trouble. Check the start-up operation. After the engine is warmed up and started, tilt the machine to stand only on one side of the track, and rotate the tracks on both sides in turn. Notice how many times you can do this in 30 or 60 seconds, then compare with other tracks. Excavator crawler is a built-in flow meter, if the two can not give you the same flow, then there may be a problem. Another way of detection is to drive the excavator on the flat ground for 10 meters. If it runs in a straight line, you can know that the running condition of the walking devices on both sides is the same. Also check the slewing ring gear and slewing bearing. Under normal conditions, the upper part should be able to start the rotation smoothly and stop accurately with little or no deviation. For a small excavator, its slewing ring gear and slewing bearing should have the same life as the machine, so any problems about this part should be paid attention to. Hood, open hood and check exhaust pipe for smoke. You can pull out the dipstick and check for smoke. Too much smoke usually means that the piston rings need to be replaced, and it may not be long before the engine is overhauled. Check the air filter unit and all pipes and clamps. A little st is enough to destroy the whole engine. Pay attention to st or dirt accumulated at the terminal. Also check the fan to make sure the belt is tight and the radiator to make sure it is clean. Ignoring the cooling system and air intake system is likely to cause the engine to overheat and shorten the life of the machine. The basic inspection also includes checking the radiator fluid and engine oil, checking the corrosion degree of the battery, and checking whether there is obvious leakage around the engine
the most important thing is, brother, you have to find a big place to buy a car. One of our friends bought a Hitachi nearby and was cheated. We usually go to Shanghai to buy it. It's a big one. We can choose where to park thousands of cars. That's just to spend some freight. I hope you can get a good car and earn a lot of money. Don't know how to ask me again

10. Second hand equipment is deep in water, such as painting, changing the service life, adjusting the number of hours, soaking machine, fire machine... If you go, take an old mechanic or repairman to see it. You'd better first find the agent of the corresponding brand, go to them to see if there is a law enforcement machine, ask the sales department if there are any local customers who don't want to operate and are ready to transfer, or check the recommendation online, Second uncle second-hand equipment mall, and then go to the construction machinery market to see
hope to adopt!