How is grab bucket types

The types of grab bucket can be divided according to the volume density of grasping materials

Light (P<1.2t/m3)
Medium (P=1.2~2.0t/m3)
Heavy (P=2.0~2.6t/m3)
Extra-heavy type (P>2.6t/m3)

These four different types of grab bucket, in order to adapt to different volume density materials, in the case of the same volume, the weight of the grab bucket has a big difference.

According to the driving mode of closure and opening of the jaw plate, the grab can be divided into:

Rope type: the rope grab relies on the wire rope to create a closed force to achieve the purpose of grasping the material. The rope grab is divided into single rope, double rope and four-rope grab.
Power grab: power grab through the load on the power unit and the transmission device to open and close the jaw plate, such as: electric grab, motor grab.