The first set of lengthened boom excavators in China came out

China Machinery Network on May 28The first 21.8-meter long-arm excavator independently developed by Sany Heavy Machinery was delivered to a customer in Nanjing, and was put into the construction of Nanjing Metro that night.
It is understood that this extended arm excavator arm length is 21.8 meters, *5655 excavation radius is 21 meters, *5655 excavation height is 16.5 meters, *5655 excavation depth is 17 meters, bucket volume is 0.4 cubic meters, is a self-developed domestic excavator brand with the longest arm span.

The machine has an optimized system configuration, using the original imported well-known brand engine and the original imported electronically controlled negative flow hydraulic system, through the first advanced intelligent electrical control system, to achieve the comprehensive control of power, hydraulics and electrical, with significant energy-saving effect, while greatly improving the operation efficiency.

According to Master Wei, the operator who drove the excavator, compared with the two foreign brands of extended arm excavators he used before, this Sany extended arm excavator has the advantages of fast working speed, economical and fuel-saving, comfortable operation, etc., and at the same time, it is much cheaper than foreign brands in terms of price, and it is very cost-effective.

Extended boom excavators utilize extra-long booms and over-length sticks to exert great power in conditions limited by the ground environment, such as dredging, bank revetment, slope and subway construction. At present, subway construction has been launched all over the country, and river dredging and pollution control projects are also blooming everywhere in order to protect the environment, so the market demand for extended arm excavators is very large. This time, Sany has successfully developed a long-arm excavator with stable performance and high cost performance, which will occupy its own unique place in this vibrant market segment.