Rail Clamp Type

There are two types of rail clamps: manual and electric (see Figure 1). Manual rail clamps are generally screw type, with simple structure, but small clamping force and slow action. They are mainly used for small and medium-sized or temporary cranes with small windshield area. Large cranes or port cranes mainly use electric rail clamps. It uses the heavy hammer to clamp the rail through the lever or the spring force, and the clamp is released by the force of the oil cylinder in the hydraulic system. The heavy hammer type is heavier, the outer dimension is large, the clamping force is smaller than that of the spring type, and the working stability is not as good as that of the spring type. The electric spring rail clamp realizes electrical interlocking with the crane through the anemometer. When the wind force detected by the anemometer reaches the wind level (usually corresponding to level 6 to 7) that cannot guarantee the normal operation of the crane, the crane is powered off and clamped by the clamp. track. This rail clamp has high working reliability