1. No, it's not tonnage, it's not technology. Excavators are multi-purpose, there's no strict distinction, but different devices are installed when the work is different, such as crushing in stone mine, bucket with good wear resistance in iron mine, and so on. Of course, for open-pit mines, large excavators are selected, as you said, more than 60 tons, in order to save cost and improve efficiency.
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. JCM excavator used to be called Zhongyou, but now it's called mountain reconstruction machine. The quality of the machine made in Shandong is OK. The machine imitated Komatsu in the early days, now it's basically on its own way; Sany excavator is proced by Sany Heavy Instry Co., Ltd
extended data:
more than 1000 R & D engineers of Sany Heavy Machinery Co., Ltd. have successfully developed C9 series 2013 excavators through nearly 1000 tests in 2 years. This series of excavators adopts the latest technologies such as domcs dynamic optimization and intelligent matching control. From the power system to the control system, the hydraulic system and the structural parts, they all adopt Sany's exclusive technology. They have made great breakthroughs in the three core aspects of energy saving, high efficiency and reliability, so that this series of excavators have the advantages of long continuous operation time, high operation efficiency, long service life, high efficiency and high reliability Strong adaptability to the environment
With the advanced R & D and manufacturing technology, Sany Heavy Machinery has developed 200 ton hydraulic excavator, hybrid hydraulic excavator, new generation positive flow excavator and other new procts with world-class standards. In 2008, Sany sy215c won the title of national key new proct, and sy360c was selected into the national torch project. At present, Sany excavator model covers 5T to 200t large, medium and small three series, 19 varieties. It has 79 national patents, including 15 invention patents and 16 major scientific research achievements The company is a wholly-owned subsidiary of Shandong heavy instry group and a provincial state-owned enterprise. It is set up with the excavator business advantages of Shantui Co., Ltd. and Shandong Zhongyou Construction Machinery Co., Ltd., bearing the mission of Shandong heavy instry group excavator business expansion. The main business is the proction and sales of excavators and their accessories; Import and export business of self operated and agent goods and technology; Sales of hydraulic oil and lubricating oil; Excavator operation and maintenance training. Proct advantages:
1. The original imported Cummins b5.9 engine meets tier2 emission, energy saving and environmental protection, convenient maintenance, adopts radial seal air filter and standard air pre filter, effectively prolongs the service life of the engine, and is equipped with fuel filling pump and standard pressure transmitter to effectively improve fuel economy
The original imported hydraulic parts have stable and reliable quality and high working efficiency
3. New cab and seat, new interior decoration, new automatic air conditioning system, with automatic air distribution, comfortable operation
Equipped with a new generation of electrical control system: large screen color display, real-time monitoring of machine running status, with fault self diagnosis and recording function, electric throttle, a variety of working modes to choose from There are many kinds of buckets to choose from, and various accessories such as crushing hammer, scarifier and quick change device can be installed to realize the multi-purpose of excavation, landfill, crushing and leveling The multi-function GPS can realize remote monitoring and two-way data transmission, and understand the running status of the machine in real time
4. Excavator is a kind of earth moving machinery that excavates the materials higher or lower than the bearing surface with bucket, and loads them into transport vehicles or unloads them to the stockyard. Excavator is one of the most important construction machinery in engineering construction. It is widely used in excavating building and plant foundation, excavating earth material, stripping
mining site overburden, loading operation in quarry, tunnel, underground plant and stockyard, excavating channel, canal and dredging waterway, and pouring, lifting, installation, piling, ramming and other operations after replacing working device.
5. 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
6. Many users prefer the original machine, and think that the original machine has better quality and higher value preservation. However, when it comes to the specific difference between the original machine and the domestic assembly machine, many users may not know why. The imported machines are supplied from Hitachi's original imported machines assembled in Japanese factories, Hitachi's Tupu and xiapu factories mainly assemble medium and large machines, and Tierra factory mainly assembles small machines. Then through Tianjin port to enter China, Tianjin Yongli Construction Machinery Co., Ltd. is the general agent of Hitachi in China. The imported Hitachi machinery is distributed in Yongli Construction Machinery Co., Ltd., and the agents from all over the country take the goods from here and then sell them to users. Difference between Hitachi's imported machines and domestic assembly machines 1. Appearance: there is no difference in overall specifications and design. 1. On the right side of Hitachi's trademark at the front end of the boom, you can see from the picture that there is a logo on the imported machine next to Hitachi's "Hitachi" trademark, but not on the domestic assembly machine. This logo is the logo of Hitachi's domestic general agent Yongli Jianji. 2. The cab glass is on the top left of the cab glass. The imported machine has a label indicating the origin of the machine, which indicates the factory where the machine is assembled and proced. The domestic assembly machine does not have this label. 3. There will be an "import" sign on the top of the model of imported machinery and equipment, which is not available for domestic assembly machines. 4. The place of origin on the equipment name plate is also different. The name plate will identify the place of proction of the machine, and the manufacturing number is also different. The HHE on the manufacturing number of domestic assembly machine means "Hefei Hitachi excavators". 2、 In addition to the difference in appearance, imported Hitachi machines will have unique delivery information. What causes the price of imported machines to be higher than that of domestic assembly machines? 1. The labor cost of Japanese factories is different from that of domestic assembly factories, which leads to the difference in the cost of imported machines and domestic assembly machines. 2. The steel used by Hitachi imported machines is high quality steel from Australia, which is proced in the same proction line with Hitachi excavators used in Japan and Europe and the United States, adopting the same quality standards. The difference between constant temperature assembly workshop and ordinary workshop is that when the machine encounters different external temperature stimulation, the gap between machine parts is smaller and the performance is better. Domestic assembly machine uses ordinary steel, ordinary workshop assembly. The quality of imported machine parts is also higher than that of domestic machine parts. The imported machine parts have high manufacturing precision, small assembly clearance and good sealing For example, when the oil temperature rises in summer, the working speed of domestic and joint venture excavators decreases significantly with the temperature, while the working speed of imported excavators does not. But the domestic machine is highly localized, the quality of domestic parts is relatively low, the service life is short, the proct performance stability is poor, and the machine noise is high. 3. The cost of import tariff and other fees, import machine into the country, through a series of tariff channels, the cost is bound to be added to the price of the machine. Although the price of imported Hitachi machines is higher than that of domestic assembly machines, many users still favor imported machines. Imported machines and domestic assembly machines can not be used in the initial stage, but after two or three years, the maintenance cost of domestic assembly machines is relatively high, while the decline of imported power is small, the maintenance cost is low, the depreciation of used cars is slow, and the resial value is high. In the bidding work, the bidder may give priority to original Hitachi under the same relationship.
7. It's better not to go to school.
Bruce Lee's excavator training at the construction site should be completed in three months and work independently
8. Use Carter and Kato. These machines are powerful! Komatsu can do it! If you have enough money, go to Guangdong and Hong Kong to buy the original imported from Japan! Capital is tight, buy domestic joint venture machine, installment!
9. 1. Definition
excavator, also known as excavating machinery, also known as excavator, is a kind of earth moving machinery that uses bucket to excavate materials higher or lower than the bearing surface, and load them into transport vehicles or unload them to the stockyard
loader is a kind of earthwork construction machinery widely used in highway, railway, construction, hydropower, port, mining and other construction projects
loader:
2, composition
excavator: common excavator structure includes power device, working device, slewing mechanism, operating mechanism, transmission mechanism, walking mechanism and auxiliary facilities, etc; The transmission mechanism transmits the power of the engine to the hydraulic motor, hydraulic cylinder and other executive elements through the hydraulic pump, and promotes the action of the working device, so as to complete various operations
Loader: including engine, torque converter, gearbox, front and rear drive axle, referred to as four parts
3. Purpose
excavator: the materials excavated are mainly soil, coal, silt, soil and rock after pre loosening. From the development of construction machinery in recent years, the development of excavator is relatively fast, excavator has become one of the most important construction machinery in engineering construction
loader: it is mainly used to shovel, load, unload, transport bulk materials such as soil and stone, and it can also carry out light digging operation on rock and hard soil. If different working devices are replaced, the work of bulldozing, lifting, loading and unloading other materials can also be completed. In highway construction, it is mainly used for filling and digging of subgrade engineering, aggregate and loading of asphalt and cement concrete quarry
reference source: Network excavator
reference source: Network loader
