In the first half of 2013, the sales of small construction machinery products became the focus of the entire construction machinery industry. Intelligentization and miniaturization seem to be the trend of future development of the entire industry. However, Xiao Bian has to remind companies immersed in joy that intelligence is the general direction of future development of the construction machinery industry, but miniaturization will definitely not be the only direction for future development of construction machinery companies. Perhaps this is only a specific hot product for this particular period. At present, with the accelerating pace of urbanization and the increase in labor costs, mechanical replacement of manual labor has become a major trend. This has, to a certain extent, promoted the popularity of small construction machinery products, but only relying on the sales of small construction machinery products. It is also obviously unrealistic to bring about a big recovery for the entire industry. "Yanan Urban Management" is very powerful. Small and large-scale machinery are more powerful and control the construction market. "Chunlan Qiuju has its own flavor." It cannot rely on small machinery. Large excavators also have its indispensable aspect.

The "defects" inherent in small excavators

Affected by the new urbanization drive, major domestic host manufacturers, invariably, have devoted major energy to the promotion of small excavators and increased communication with end customers, especially those of some foreign brands. Recently, the hot selling of small excavators has become a hot spot in the construction machinery industry. In fact, since the end of 2012, as the Ministry of Water Resources has stepped up its efforts to lay out a new round of farmland water conservancy infrastructure construction during the spring and winter season, the investment of over 300 billion yuan in farmland water conservancy construction has significantly increased the sales of small excavators. At the same time, as China's urbanization process and labor costs are escalating, companies are increasingly tending to use mechanical equipment to replace labor, and to a certain extent have also promoted the need to dig small markets. However, large and medium-sized excavators are profitable but their sales are hindered. Although small excavators are marketable, they must face the dilemma of selling more and more. Should they not continue to develop small excavators?

Large foreign hydraulic excavators

With the rapid development of the large number of hydraulic excavators entering the market, large-scale hydraulic excavators have also received increasing attention. What is the general situation of the development of large-scale hydraulic excavators in foreign countries? The development of large-scale foreign hydraulic excavators began in the 1970s. In 1979, Hitachi Construction Machinery successfully developed the UH50 Shovel Super Large Hydraulic Excavator with a bucket capacity of 8.2m3 and a working weight of 175t.

In 1987, the world's largest Hitachi EX3500 Shovel excavator (capacity 18.8m3, working weight 330t) was successfully developed in Japan. In that year, it also developed the EX4500 with a bucket capacity of 22m? and a working weight of 420t. Shoveling super large excavator. At this time, other companies in the world have also developed super-large hydraulic excavators, such as Komatsu PC1600 type, Caterpillar 5130 type, Liebherr R992 type, R994 type, Terex (obtained O&K) RH20C type, RH90C type. Since 1990, the bucket capacity of super-large hydraulic excavators has continuously increased to more than 50m3; the weight of the excavator has been continuously increased to more than 800 tons, and a series of large-scale mining and earth-moving hydraulic excavators has been formed.

After more than 30 years of development, the maximum working weight of the super-large hydraulic excavator has exceeded 900t, nearly 1,000 tons, and the bucket bucket has a capacity of 50m3. The manufacturers of super-large excavators are mainly located in manufacturing machinery manufacturing countries such as Germany, Japan, and the United States. Famous manufacturers like Boehler, Caterpillar, Hitachi, Komatsu and other companies are presenting a “four-destination” trend. In 2012, Hyundai launched the first excavator R1200-9 with more than 100 tons in France. The world's largest tonnage excavator is the Terex RH400 (now Caterpillar 6090) hydraulic excavator, weighing 980 tons. (Editor's note: The Caterpillar 6120BHFS super large-scale hybrid hydraulic excavator has been exhibited externally and will be put into production in 2014. It weighs 1270 tons, the engine output power is 3360kW, and the bucket capacity can reach 46~65m3 depending on the density of the material. )

Large hydraulic excavator has market to be developed

In recent years, it has been said that due to the hot sales of small diggings, large digging was once "into the cold," but it is not true. The non-highway dump trucks used in the construction of large-scale mines and water conservancy projects at home and abroad continue to grow toward large-scale, in order to adapt The trend of unloading large cars to ensure that in the joint operation with the dump truck, super large excavators will inevitably increase the bucket capacity, so that the workload per unit time increases, resulting in higher production efficiency. As a result, the demand for very large excavators is growing. Just because these giants do not appear in our sights, this part of the market is easily overlooked.

At present, most large-scale excavators use a large-capacity front bucket in order to obtain maximum loading capacity. With the development of hydraulic excavator technology, the development of ultra-large backhoe hydraulic excavators and increased market demand have attracted the attention of the industry. On June 3rd, Longgong wanted Zijin Mining to deliver the first batch of customized large-scale excavators. This made it possible to ease the current situation of digging hot and cold. It is understood that, according to the special needs of Zijin mine operations, Longgong has carefully developed large-scale construction machinery equipment suitable for mine operations, and Zijin Mining has also deployed it. In the future, all new mining equipment will use Longgong brand. In this sense, "unbalanced hot and cold" only lies in whether or not the company is truly motivated. The mining group is the main buyer of large construction machinery products. How to impress them and how to win this market, construction machinery companies need to think about it.