Standard Features
Standard SCHAAF Hydraulic Nuts, Typ A 4900, consist of:
  • Cylinder, knurled (1)
  • Ring Piston (retained in the cylinder to prevent loss) (2)
  • 2 Hydraulic Connection Bores G 1/4, radial (3)
  • High Pressure Seal Set for temperatures from
    -30°C through to +100°C (4)
  • Pressure medium (hydraulic oil) (6)


  • and are equipped with:

  • radial tommy bar holes (7)
  • thread recess for centering
  • surface treatment (chemi-blackened)

  • 1 Plug Screw G 1/4 (5)