Sany Excavator Factory - Production Chinese Excavators. Sany Heavy Industry Company is a Chinese multinational heavy equipment manufacturing company headquartered in Changsha, Hunan. It is the 3rd-largest heavy equipment manufacturer in the world, and the first in its industry in China. The Sany Company produces excavators, crawler cranes, and other products. Sany Heavy Machinery (Kunshan) Co., Ltd., in the city of Kunshan is the unit in charge of excavators. This is Kunshan factory in China, where assembly workers has to Hand-Building Sany excavators. Here are produced of medium, large hydraulic excavators in the range of 7 to 220 tons. One of the largest and most advanced excavator factories in the world. Built from scratch here in the greater Shanghai industries owned at a cost of a half a billion euros. Sany the Chinese market leader manufactures new high-tech excavator seat up to 40,000 each year. The Kunshan factory site. Almost a million square meters in size. The manufacturing operation split between three buildings and it all starts here at the back of building one. 0:00 About Sany Heavy Industry 0:09 Steel plates processing 0:33 Plasma cutting 0:51 Welding shop 2:02 Paint shop 2:42 Undercarriage assembling 3:00 Installation track system 3:08 packing by grease the slew ring 3:31 Superstructure assembling 4:41 Undercarriage to superstructure marriage 5:56 Assembling a lifting system with excavator arms 6:36 Montage arm to excavator 7:29 Final testing area