Diesel - Hydraulic Clamshell Grab Type DHS-B 8,0m³

General
The below described radio - controlled Diesel - hydraulic clamshell grab is a modern
an robust high - performance bulk - handling machine.
The grab consists mainly of the following components:
1. Centre Grab Section with
- Diesel engine and flanged - on variable axial hydraulic piston pump
- Hydraulic - tank with integrated fuel - tank
- Double - arm vertical support with mounted cross member and chain support
- the radio - control receiver unit with connected electric controls motor electric
and battery
- the two hinged covers for the complete drive
- the bearing points for the two working cylinders
- the four bearings for the clamshell bolts at the bottom side
2. Two double - acting hydraulic cylinders with cover
3. Clamshells with
- sealed joint bearings in the clamshell - turning points
- the bearings for the working cylinders
- the lateral working cylinder protection in the centre of the clamshell, what is the
slide - way for the working cylinder - cover at the same time
After being hooked into the crane the grab is ready for operation.
The functions:
- Diesel engine " Start "
- Diesel engine " Stop "
- Grab " Open "
- Grab " Close "
are radio - controlled by the crane driver via the mobile transmitter in the crane cabin.
The control of the grab can also be done by a man near the ship’s hatch if the grab is outside
of the crane driver’s range of view.
The max. transmitting range is approx. 200 m.
The compact construction design in combination with a suitable arrangement of all components
and the optimised grab kinematics are resulting in:
- a suitable course of the grab closing forces (especially at the end of the closing
process high closing forces are ensured)
- an wide grabbing distance between the shells
Additionally there is a good filling of the grab due to the suitable shell shape and grab
curves.
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