A used beam lifting machine are hoisting equipment specifically used in bridge construction to produce large-scale hoisting equipment across highways and railway bridge decks and then sold after use. This type of crane is usually used in infrastructure construction such as high-speed rail, highways, and urban rail transit. Different bridge designs require different lifting beam opportunities. Generally, there are common specifications of 60 tons, 80 tons, and 100 tons, and there are also uncommon specifications of 120 tons, 150 tons, and 200 tons.