DHG Hydraulic Grabs

DHG is a diaphragm wall grab which is rope suspended and operated hydraulically. the 80 - 120 ton closing force and 6 - 10 second shovel opening / closing time are activated by a cylinder which is installed vertically inside of base body. High closing forces in combination with the posibility of multiple grabbing at the trench bottom result in high excavation rates even in dense and very hard soil strata.
 

 

  DHG AS DHG B Vario DHG V
panel length 2.800 mm 2.400 – 3.200 mm 2.400 – 4.200 mm
panel width 300 – 600 mm 600 – 1.200 mm 600 – 1.500 mm
height (open) 7.300 mm 7.200 – 8.000 mm 7.200 – 7.400 mm
cylinder force 800 kN 1.200 kN 800 – 1.800 kN
weight 9 – 11 t 10 – 19 t 15 – 35 t
steering flaps - 4 (optional) 4 – 12 (optional)
turning device - GV 3 (optional) TD 4 (optional)