The SLJ900/32 machine, whose length is about 91 meters, width — 7.4 meters, height — 9 meters and weight — about 580 tons, is capable of laying 700-750 spans for the entire time of "its life", although more than 40 percent of such machines managed to lay 1000 spans, the weight of each of which is from 800 to 950 tons.

According to information from the publication "Bridge Design & Engineering", such machines have become widespread in recent years, not only in China, but also around the world. But the first of these machines were created unique, focused on the construction of a particular structure.