There are many types of electric hoists with chain links. For lifting in clean rooms, there are electric hoists for clean room use, which include the electric hoist body, dust cover, telescopic accordion cover, and chains. The electric hoist body is located inside the dust cover, and the chain connects to the electric hoist body, which is then positioned within the telescopic accordion cover. It can be installed on pre-installed I-beam tracks in workshops or used in conjunction with cranes such as gantry cranes and cantilever cranes. There are also various tonnage specifications available, including 1 ton, 2 tons, and 3 tons, allowing for selection according to requirements.