Storz Hydraulik Differentialzylinder

Storz Hydraulik Differentialzylinder Storz Hydraulik Differentialzylinder

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
  • Also available with MP6 swivel eye as a special version

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)


A Basic design


MT4 Trunnion


MF3 round flange on cylinder head

Mounting types for series ZWAS 2511 (with connection plate)


A Basic design


MT4 round flange on cylinder head


MF3 round flange on cylinder head