Demolition grabs DG-20

Demolition grab DG-20

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Features

  • 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.

Specification

Technical specifications

Model NPK DG-20
Excavator weight (ton) 14 – 20
Weight (kg) 1150
Capacity (l) 500
Pressure (MPa) 35
Oil flow (l/min) 100
Pressure (MPa) 13
Oil flow (l/min) 25
Closing force (kN) 52
Width (mm) 950
Arms openend (mm) 2050×1285
Arms closed (mm) 1315×1425

Drawing

Demolition grabs DG-20

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