differential cylinder_zw2511_

Technical Documents

ZW/ZWAS 2511 – ND 250 bar – data sheet

PDF-document [6.2 MB]

Position sensor for  ZW/ZWAS 2511

PDF-Document [3.1 MB]

Suitable mounting parts DIN 24337

PDF-document [775.3 KB]

ZW/ZWAS 2511 – Standard hydraulic cylinders (DIN 24333) – Nominal pressure 250 bar with integrated displacement encoder

Good to know: STORZ ZW 2511 or ZWAS 2511 series hydraulic cylinders are equipped with a displacement encoder. The basic design of these hydraulic cylinders is derived from our standard ZBD 2511 series. The installation dimensions essentially correspond to ISO 6022, DIN 24333 and VW 39D921.

  • Available in 3 mounting types for a wide range of applications
  • Nominal pressure 250 bar (25 MPa)
  • Piston diameters from 40 – 250 mm (by default two rod diameters assigned per piston diameter with area ratios j=1.6 and j=2)
  • For displacement encoders by various manufacturers
  • Selected seals and piston rod surface finishes and materials for use under a wide variety of conditions
  • Available with an affixed valve connection plate
  • Also available with a mounted proportional or servo valve
  • For valve connection plates and any proportional and servo valves to be supplied as standard with NG6 and NG10 hole patterns in accordance with ISO 4401
  • Housing of the displacement encoder protected against mechanical damage from outside by protective tube

Please note: Linearity deviation, system resolution and reproducibility are outlined in the data sheets for the displacement transducers.

Technical data

Nominal pressure: 250 bar (25 MPa)
Static test pressure: 375 bar (37,5 MPa)
Piston diameter: 40-250 mm (others on request)
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

Mounting types for series ZWAS 2511 (without connection plate)


Mounting types for series ZWAS 2511 (with connection plate)