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Pneumatic part-turn actuator DR / SC

The pneumatic part-turn actuators are dual-piston drives based on a rack and pinion design principle. This proven principle of operation guarantees the highest levels of reliability. Available versions include double-acting and single-acting part-turn actuators with integrated (fail-safe) spring return.

  • For use in safety-related systems in accordance with EN 61508
  • For use in Zone 2 and Zone 22
  • Large torque range
  • Solid, corrosion-resistant housing made of aluminium
  • Maintenance-free
  • Operates in any position

The honed surface of the cylinder bore ensures these actuators achieve their long service life. Control pressure ranges between 2.5 bar and 8 bar. That achieves torques ranging from 5 Nm up to 10 000 Nm. The anodised aluminium housing and powder-coated cover ensure of the pneumatic part-turn actuators ensure good corrosion protection even for outdoor applications. The connections comply with DIN/ISO and Namur requirements. The part-turn actuators can also be used in potentially explosive areas. Exposed to hazards from gases and vapours they are suitable for use in Zone 2, and in Zone 22 areas when exposed to dust hazards.

DR/ SC 10, SC 15, SC 30, SC 60, SC 100, SC 150, SC 220, SC 300, SC 450,
DR/ SC 600, SC 900, SC 1200, SC 2000, SC 3000, SC 4000, SC 5000, SC 10000

Datasheet
DR_SC_Pneum_Schwenkantriebe.pdf

Details
  • Housing made of extruded anodised aluminium
  • Cover made of corrosion-resistant die-cast aluminium with powder coating
  • Degree of protection IP67 to DIN EN 60529

Output shaft

  • Steel, hard nickel plated (ENP)
  • With square socket (position parallel and diagonal) or double square socket to ISO 5211 (adaptation through a wide range of adapter shafts and sleeves)
  • Anti-blowout output shaft (complies with tightened US regulations)

Output shaft bearings

  • Plain bearings made of high-quality plastic

Operating angle

  • Nominal operating angle: 90°

Controller

  • Open/close
  • Position controller

Ambient temperature

  • -40 °C bis +80 °C
  • Options:
    • - -15 °C to +150 °C
    • – -55 °C to +80 °C

End position limits

  • Each end position can be set externally
  • Wide setting range from +5° to -15°

Control medium

  • Filtered, dry or oiled air
    • – Pressure dew point ≤ -20 °C
    • – Particle size < 30 μm
  • Non-corrosive media

Control pressure

  • 2.5 bar to 8 bar

Torque

  • 6 Nm to 10 000 Nm for double-acting actuators
  • 5 Nm to 7 000 Nm for single-acting actuators