Steel plate lifting pliers is also known as lifting pliers, it is a lifting equipment, divided into horizontal lifting heavy lifting pliers and vertical lifting heavy lifting pliers. The horizontal lifting plate pliers have the characteristics of horizontal distribution lifting, and the vertical lifting plate pliers are equipped with a self-locking device, which is convenient to use and does not require maintenance. The conventional horizontal crane specifications and models are: PDB flat crane, L-type horizontal crane, DFQ flip and LC type horizontal crane, and the conventional vertical crane models are CDH vertical crane, CD vertical crane and SVC Japanese vertical crane.

　　Wrong lifting of vertical lifting pliers: 1. When using a single steel plate for vertical lifting, the lifting pliers are not stuck in the middle of the steel plate. 2. The steel plate is not inserted into the bottom of the pliers. 3. The vertical lifting pliers are not placed symmetrically on both sides of the steel plate. 4.CDH vertical crane one-time lifting with multiple steel plates. 5. Use 3 tons vertical crane to lift 5 tons of steel plate.

　　Scrap standard for lifting pliers (steel plate pliers should be scrapped or replaced if there is one of the following circumstances)

　　1. The mouth deformation reaches 5% of the original opening degree

　　2. The wear of the clamp shaft reaches 5% of the original diameter

　　3. The wear of the front axle port reaches 10% of the original size

　　4. Tongue and mouth plate wear up to 20% of the original tooth height

　　5. The bending amount of the clamp shaft shall reach 0.25% of the original length

　　6. If the steel plate clamp is found, the cracks can be seen by the naked eye

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