Glass lifting at the Beijing Tongzhou Library, the glass is 15*2.6 meters and weighs 12 tons. It needs to be lifted up from the side and then rotated to transport the glass to a height of 22.3 meters. The super-long boom and remote control precise operation perfectly fit the installation of the library glass. Before using the SUNHUNK 4500 and 6680, four 15-meter by 4-meter glass panes were lifted with two truck cranes. Only one glass could be lifted per day, which was unsafe. However, after using these two machines, work efficiency was greatly improved, and the safety factor was also increased.