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SR Series rotary vane steering gear

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The design gives smooth starting and stopping of the steering gear, and enables a precise analogue control system.

Unique technical solutions minimise noise and vibration levels

The SR series is suitable for small to medium-sized vessels. The steering gear is designed with integrated frequency controlled pumps. The pump utilises a reversible hydraulic pump motor together with a frequency converter to reduce the power consumption and to change the speed and the direction of the pump. The design gives smooth starting and stopping of the steering gear, and enables a precise analogue control system. The pump units are mounted directly on the rudder actuator, which lessens the need for piping work on board a vessel. Full frequency control means the pumps and motors are only running when a steering command is given, this reduces the amount of heat generated and leads to cleaner hydraulic system, improving the lifetime of components.

Key features

  • Compact
  • Low weight
  • Easy installation
  • Easy maintenance
  • High positioning accuracy
  • No external moving parts
  • Up to 70° rudder angle
  • Available with steering control and rudder angle indicators as one complete system
  • Built-in rudder carrier
  • Polymer sealings internally for optimal tightness
  • Simple and robust components

Technical data

Type SR562L SR562 SR622 SR642 SR662 SR722 SR723 SR742 SR743
Std. rudder stock diameter (mm) 120 160 200 240 280 300 320 340 360
Max working pressure (bar) 54 133 125 125 125 125 125 125 125
Max working torque (kNm) 16 40 70 110 170 275 412 433 650
Max mechanical rudder angle (deg) 2 x 61 2 x 61 2 x 71.5 2 x 72 2 x 72 2 x 72 2 x 44 2 x 72 2 x 44
Weight approx. (kg) 400 400 620 920 1800 2750 2800 3700 3750
Max radial load (kN) 175 175 400 600 700 855 855 1400 1400
Max axial load (kN) 1.04 1.04 2.00 2.50 3.54 3.70 3.70 4.80 4.80

Services and support

  • 24/7 Technical support

    Our 24/7 technical support team is there to help at any time, day or night, wherever your vessel is.

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  • Spares

    We understand the importance of having the right parts, available in the right place, at the right time.

  • Training

    Ensure that your crew is properly and thoroughly trained. This will reduce operational risk, downtime and maximise return on asset investment.