KHD – Hydraulic Grab for Diaphragm Wall
KHD22 | KHD25 | KHD28
The heavy weight and high clamping force of the hydraulic bucket, allows you to successfully build diaphragm walls even in difﬁcult ground conditions. Casagrande offers a broad selection of diaphragm wall grabs for Casagrande base carrier or on hydraulic cranes.
WIDTH EXTENSION SETS
With front guides and jaws the digging width can be extended from 600 mm to 1500 mm
Sets with side guides and jaws the digging opening can be extended from 2200 to 2500 mm on the KHD 22, from 2500 mm to 3200 mm on the KHD 25 grab and from 2800 to 4000 mm on the KHD 28 grab.
The additional modular weight increases the impact energy of the grab in hard soil and rock.
Two hydraulic cylinders and the jaws balancing guide ensure fast and effective excavation.
HYDRAULIC TURNING JOINT
The hydraulic turning joint allows precise alignment of the grab with the trench and operation at various angles which is useful on limited working sites. Complete rotation of the grab by +/- 180 degrees
Wear sharp for high penetration and center rib for great strength. Hammerless tooth system featuring for simply preplacement and integrated locking device for higher safety.
CLEANERS AND CHISEL
The chisel is integrated into the main body of the grab and provides more efficient excavation. Large side ejectors ensure complete emptying of the excavation material.
Casagrande – Hydraulic Grab
Hydraulic Turning Joint
The hydraulic turning joint allows precise alignment of the grab with the trench and operation at various angles which is useful on limited working sites.
Complete rotation of the grab by +/- 180 degrees.
All information on the orientation of the grab and the deviation from the correct trajectory are displayed on the control panel. The operator can correct the direction of excavation by activating the twelve optional steering plates. Due to the reinforced electric cable and the winder placed at the base of the boom, information and activation of steering plates are in real time. Each plate can assume two positions and the system is hydraulically operated. The grab must be equipped with the hydraulic turning joint.
Some images of our Hydraulic Grab in action