Demolition grab DG-20

DG-20 Assy with bars
DG-20 Assy with bars
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  • Oversized pins all combined with heavy duty wear bushings on rotating points.
  • Powerful hydraulic rotation motor.
  • No drain line needed for the hydraulic motor.
  • One hydraulic cylinder with cushion at the end of stroke (opening).
  • Less hydraulic components, less possibility of leakage.
  • Hydraulic connections at both sides of the Swivel Top
  • Easy maintenance.
  • Easy accessibility of the adjustment of the opening/closing speed and rotation speed. All accessible by a hole in the swivel top.
  • Pilot check valve against unexpected opening of the arms.
  • All hydraulic connections for opening/closing G3/4”. Less heating up of hydraulic oil.
  • Stiff Frame with Side plates and Bottom plate made of Hardox400.
  • Arms complete build up with Hardox400.
  • Interchangeable and reversible cutters (HB500).
  • Heavy and strong bearing (slewing ring) with 360° hydraulic rotation.
  • Brake valve on hydraulic motor for protection of the motor seals.
  • Easy to grease in one position.
  • Large jaw opening and high closing force.
  • Special requests can be discussed.
  • Optional : cutters.


Model NPKDG-20
Excavator weight (ton)14 - 20
Weight (kg)1150
Capacity (L)500
Open/close – Working pressure (MPa)35
Open/close – Oil flow (l/min)100
Rotation – Working pressure (MPa)13
Rotation – Oil flow (l/min)25
Closing force (kN)52
Jaw – opening (mm)2050
Width (mm)950



Demolition-grabs.pdf (1.67 MB)

Abbruchgreifer.pdf (1.70 MB)

Grappins-de-démalition.pdf (1.71 MB)