How about a combined miner

1. Anhui hekuang is not bad. Many people say that they have been on the computer for a long time, and they can work alone after two or three months of internship after graation. What a cow! How fast

2. Diesel engines are used in excavators, and the throttle controls the fuel injection quantity, which is different from that of gasoline engines. The size of the throttle knob in the cab controls the fuel supply quantity of the diesel pump. The larger the throttle is, the larger the fuel supply quantity of the diesel pump is and the larger the injection quantity is.

3. Introction: Anhui hekuang Environmental Technology Co., Ltd. (Stock Code: 830856), established in May 2011, is a listed company focusing on wetland ecological restoration and providing intelligent comprehensive solutions. It is one of the few enterprises in China that master the core technology of wetland ecological restoration. Anhui hekuang Environmental Technology Co., Ltd. (Stock Code: 830856) is a listed company focusing on wetland ecological restoration and providing intelligent comprehensive solutions. It is one of the few enterprises that master the core technology of wetland ecological restoration in China. The company takes integrated wetland ecological restoration technology as the core, and relies on expert think tank team, Tsinghua University and other universities, Ensure the continuity and leadership of core technology. The company's business covers water ecological restoration and soil ecological restoration, and its cooperative customers include water conservancy and environmental protection departments of various provinces and cities. It has become a wetland ecological restoration solution provider in the whole instrial chain
legal representative: Hu Qiangui
time of establishment: May 19, 2011
registered capital: RMB 32.705 million
Instrial and commercial registration number: 34012200005705
enterprise type: joint stock limited company (unlisted, invested or controlled by natural person)
address: Hehua Road, economic development zone, Feidong County, Hefei City, Anhui Province

4. Generally speaking, 80 machine is 8 tons, 100 machine is 10 tons, like Komatsu brand machine, Komatsu 120 is 12 tons, of course, there are special features.

5. yes! It's a long time to get on the computer. The express class gets on the computer for 3 hours every day!

6. 23 Hehua Road, Feidong New District, Hefei city Take bus No.40 from Hefei railway station to Dongfang Garden Station, walk back 40 meters and then 200 meters to the south.)

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8. To measure the level of a country's science and technology, we should not look at whether there is a man-made satellite in the sky or whether there is an aircraft carrier in the sea. We should only look at the level of the country's excavator! Unfortunately, China has not been able to independently proce a fully domestic excavator... Sany or Liugong, pumps and valves and other core components are imported! Unfortunately: the performance and life of the excavator is not only determined by the core components! A pipe, a chain pin, can make your machine paralyzed at any time

domestic excavator, it's not easy to say love you

9. There are many brands of excavators. We all know the brand, but we don't know which brand is suitable for us. That brand is cost-effective. Let's talk about the advantages and disadvantages of excavator. You can make a comparison and choose an exquisite machine suitable for you and your region
method / step
6 / 7 step by step reading
Carter
features: good mechanical matching, excellent hydraulic system, general action, rable, value preservation, strength first, price first
disadvantages: the earth moving is too slow, the fuel consumption is large, the accessories are expensive, and the maintenance cost of the machine is high. The engine oil is easy to burn and the water temperature is easy to be high. Short arms< Characteristics: stable quality and low failure rate. Powerful, powerful, fast and effective. Fuel saving, value preservation and rability. Keep value and last for a long time. King of earthwork
disadvantages: being a stone is not as strong as Carter's<

3 / 7
Komatsu
features: good mechanical matching, excellent hydraulic system, flexible action, rable, value preservation, low cost, average fuel consumption, medium strength
disadvantages: pc-8 machine has high fuel consumption, unstable walking body mass and high maintenance cost of engine EFI. The traveling recer often breaks down, and it is easy to leak oil after working for 2000 hours. Now it is a domestic Cummins engine, the engine life is short, two years later, the power is greatly reced, and the maintenance cost is high. The walking device and the working device have five compound actions, the working efficiency is low, and it can't save itself. The depreciation rate is high. The procts of more than three years are more than 100000-200000 cheaper than those of the same tonnage and grade. The domestic rate is high. Even the engines and motors are domestic. When working for 6000-7000 hours, the walking motor is likely to be broken<

4 / 7
Hitachi
features: General mechanical matching, general hydraulic system, flexible action, general rability, general value preservation, general use cost, general fuel consumption, moderate strength
disadvantages: it is not rable, and there are many problems after two or three years, mainly e to the high water temperature and the hydraulic system. At present, No.20 unit is replaced with four missing engines, but it is to increase the cylinder diameter and rece the displacement, so it is not dare to use. Love oil leakage, is the main control valve oil leakage is very common, fried Hitachi said! The hydraulic system and engine will have problems for 2-3 years. Repairing your car makes you bankrupt<

5 / 7
Shengang has the advantages of fast speed, fuel saving and earthwork. The imported Shengang is good. Now the domestic engine is made in China, so it's better to buy Liugong. The Liugong engine is still imported Cummins. The circuit is defective< Features: General mechanical matching, medium and low hydraulic system (Korean hydraulic), slow action, general rability, medium and low value preservation, general use cost, low fuel consumption, medium and high strength, second and third in price market
disadvantages: Samsung in the past, but Volvo bought it later. It's obvious that Korean cars only marry rich families. There are a lot of accessories in Korea (many people are fooled into thinking they are Swedish), with average fuel consumption and high comfort. After two or three years of use, the maintenance costs are high. The key is that the parts are expensive and it's not very convenient to buy them. The requirements for oil are quite high

7 / 7
Daewoo
excavators are cheap, fuel consumption is average, not rable, and do not maintain value. After four years of use, sell it and replace it with a new one, otherwise the maintenance cost is too high

precautions
the characteristics of the above brands are also applicable to second-hand excavators, editing and finishing
collecting information from the Internet does not mean that it is connected to the Internet; For reference only

10. Let's talk about joint venture brands first Maybe it's a regional problem, some of them can't be contacted)

caterpillar: a big manufacturer in the United States, the big brother of excavators in the world, with strong performance
advantages: sufficient strength, rable, strong, not easy to break, high maintenance of old machine. Mine engineering is the first choice
disadvantages: high price, high fuel consumption, especially for mine type models, high fuel consumption and general after-sales service
20t model: reference price cat320dgc 97-100w 320d 110-115w

Komatsu: a Japanese manufacturer, a leader in excavator instry, with high total cost performance
advantages: good strength, fast speed, strong, rable, not easy to break, good value preservation. Earthwork is preferred
disadvantages: high price, high fuel consumption, not suitable for mining, expensive accessories. After sales service was average
20t model: reference price PC200-8 97-100w PC200-8 hybrid 110-118w
advantages: the mechanical matching is general, the hydraulic system is general, the action is flexible, generally rable, the value preservation is general, the use cost is general, the fuel consumption is general, the strength is medium, and the price is about 30000-50000 cheaper than Komatsu
disadvantages: it is not rable, and there are many problems after two or three years, mainly e to the high water temperature or the hydraulic system. At present, No. 20 engine is replaced with four lack engines, but it is to increase the lack of strength and rece the displacement, so it is not dare to use< The reference price of 20t zx200-3g is 95-98w

Shengang: Japan's big factory, big sales volume, overall fair
advantages; Low down payment and fuel saving. The color is good
disadvantages; It's not strong and rable. After a major overhaul of the four cylinder engine, the quality is very poor. It can only do earth work. Because there is no strength, the things pieced together are certainly not easy to use
20t model 210lc-8 (super8) reference price 97-102w

Volvo: good brand, big sales, good reputation, overall good
advantages: good safety and luxury. Fuel saving, fast speed and good value preservation
disadvantages: Volvo's new machine is OK, but the localization is serious, fragile and not thick enough< The reference price of 20t ec210b is 100-106w
advantages: low price and low fuel consumption of - 8 series. It can be used in all kinds of projects
disadvantages: low price brings inferior proct quality, moderate price, moderate quality and poor after-sales. The degree of hedging is low
the reference price of 20t dh215-9 is 80-85w, dh225-9 86-91w

Hyundai: according to the region, it is said that Jiangsu sells quite well, but it is really low-grade goods
advantages: the price is cheaper, the parts are easy to buy and cheaper
disadvantages: the machine can't even reach the level of domestic machine, so it's good or bad

personal point of view: imported brands can only buy the above several brands, case, Kato, Terex, libaoer, Sumitomo, Ishikawa island are not allowed to buy, the share is low, there are few after-sales service points, parts are difficult to buy, if you buy, there will always be these problems

compared with imported brands, the comprehensive ability of the following domestic machines is quite poor. But it's still graded

the first level: Sany Heavy Instry, Liugong, Shanhe intelligent, Yuchai
the second level: XCMG, Zoomlion, xudiao, Longgong, Lingong, ward, Shantui, lishide
finally: Zhan Yang, Zhenyu, rhinoceros, Changlin, Kaiyuan.