Operation mode

• Supporting mode: single driving motor mode is supported
• Switching mode: switch the single driving motor mode (when the grab is initialized)
• Hoisting and switching mode: grab working manually mode
• Grab mode: normal auto/semi-auto working mode
• Bulldozer mode: special mode for hoisting clearing machine

Grab initialization

• Hoisting initialization
• Switching initialization
• Cart initialization
• Grab lifting operation
• Grab switching operation

Key technics

• Grab auto switching control: auto soft switch on/off eliminates the shock to the machine
• Deep digging control: auto sink when grab off feeding, auto moment control achieves maximum dredging mass, the sinking value is adjustable
• Position synchronizing control when grab on lifting, which ensures hoisting and switching mechanisms lift synchronously
• Switching is supported when grab off lifting to achieve the load balance control and ensure hoisting and switching mechanisms torque equilibrium and grab close tightly