The application of counterweight block is very wide. In some construction sites, we will often see the tower crane. The working principle of the tower crane is to maintain stability after lifting heavy objects through the balance of counterweight block and the toughness of the metal structure of the tower body. In general, it is the balance of the arm weight, lifting the heavy objects before tilting to the arm.Therefore, the counterweight block can not be more or less, must be configured according to the weight of the instructions.