Hy-Pro HS+40 20 Hydraulic Steering System

250mm Stroke Cylinder & PR+20 Pump

The Hy-ProDrive traditional steering systems are produced in two sizes in our purpose-build UK factory. They combine our market-leading super-quiet IP67 gear pumps with a cylinder and reservoir for use with autopilots on secondary marine steering systems. These products are fully certified to the Recreational Craft Directive (including ignition protection) and the navigational EMC standard. Alternatively, for those wanting a neat all in one product, we also offer a range of fully integrated linear actuators.

The HS+40 hydraulic steering system has been designed specifically for marine secondary steering applications. It comes fitted with a PR+ reversing pump which, depending on the size of pump selected, can produce thrusts of up to 6900N. A solenoid clutch is fitted that when disengaged enables mechanical steering to be used. Built-in relief valves protect the installation and there is a further option of mounting a linear feedback transducer on the cylinder.

The systems consist of a compact cylinder which includes the clutch and relief valves, pump, reservoir and all hoses and fittings. They come pre-filled and bled ready for use and are supplied complete with fasteners for mounting the cylinder and pump, and a tiller bolt.

Key Features

• Ingress protection IP67: EMC Protection S EN 60945:2002 (DC)
• Ignition Protection BS EN 28846:1993
• EN ISO 10592:1995 (Small Craft - Hydraulic Steering Systems)
• Ambient operating Temperature -15 to + 55 deg C
• Max Operating Thrust: 6900N (Intermittent)
• Relief Valve setting: 62 bar (7800N)
• Orientation: Red lead to positive - Extends ; Black lead to positive - Retracts
• Clutch coil: 12-watt
• Clutch connection: DIN 43650 (6-8 mm cable)
• Fluid: ISO VG10 to VG40 hydraulic mineral fluid to ISO 6743-4 HV
• Typical Amp-hour 580N at 25% duty: 12v 2.5 ; 24v 1.3
• Typical Current Intermittent 6350N: 12v 25.0 ; 24v 12.0
• H.O time (no load): 9 seconds