Used air conditioners come from air conditioners scrapped in the process of consumption, which are divided into wall-mounted and split cabinet air conditioners according to the model, and can be further divided into different numbers according to the power size. The process represented in this dataset is that after entering the dismantling workshop, the used air conditioner is decomposed using manual and mechanical physical processes to form dismantling products such as materials or parts, and manual dismantling is carried out with manual, pneumatic, and power tools to dismantle all components, parts, cables, etc. that can be directly disassembled. The composition of dismantling products is aluminum (7%), copper (17%), iron (55%), plastic (11%), and others (10%).