Technical Documents

ZBD 2511 – ND 250 bar – data sheet

PDF-document [1.4 MB]

Suitable mounting parts DIN 24337

PDF-document [775.3 KB]

ZBD 2511 – Standard hydraulic cylinders (DIN 24333) – Nominal pressure 250 bar (25 MPa)

Good to know: The STORZ ZBD 2511 series hydraulic cylinder for a nominal pressure of 250 bar complies with the ISO 6022, DIN 24333 and VW 39D921 standards.

  • International interchangeability due to stipulating the fastening dimensions, installation length, surface ratios, piston rod ends and connecting threads
  • Same installation dimensions for cylinders with and without end position damping
  • Two rod diameters assigned to each piston diameter as standard (corresponding area ratios j=1.6 and j=2)
  • 5 standardized mounting methods and 6 sealing variants as standard
  • • Position for line connections, vents and throttle screws is freely configurable

Technical data

Nominal pressure: 250 bar (25 MPa)
Static test pressure: 375 bar (37,5 MPa)
Piston diameter: 40-250 mm (larger than special version)
Area ratio j: 1,6 and 2
Temperature range: -20…+80 °C
Viscosity range: 10…600 mm²/s
Lifting speed: 0 – 1 m/s depending on seal variant
Operating medium: Mineral oil according to DIN 51524, HFD fluids HFA, HFB and HFC fluids possible through special designs

Mounting types


A Basic design


MT4 Trunnion


MF3 round flange on cylinder head


MF4 round flange at cylinder bottom


MP4 Swivel eye at cylinder bottom


MP6 Joint eye at cylinder bottom