This kit includes the MEDIUM length cylinder with ram stroke length of 250mm. The HS+40 250mm stroke length kits are available with 3 different pump sizes to give faster or slower rudder movements. The 'Hard Over to Hard Over time' for this kit with the 1.0 litre pump is 13 seconds.

The HS+40 hydraulic steering systems are designed specifically for marine secondary steering applications. They combine a hydraulic cylinder with clutch, reversing pump and reservoir in a compact installation. The solenoid clutch disengages the hydraulic circuit allowing manual mechanical steering to be used in conjunction with the hydraulic system.

Description

A pre-filled hydraulic system comprising a cylinder with clutch, pump and reservoir. The cylinder is free to float until the solenoid clutch is engaged, the reversing pump is then used to extend and retract it. Integral relief valves protect the installation from damage.

Application

Designed specifically for the marine autopilot market, they can be used on sailboats and power-craft with displacement and fast planing hulls. The pumps and cylinders can be matched to give the hard-over times and thrusts to suit the application. Further combinations using our 5 reversing pump sizes are also possible. Please refer to our data sheet PR-d for details of the reversing pump range.

Features

• Shorter than conventional cylinders.

• Integral solenoid bypass valve and relief valves.
• Fully serviceable.
• Quiet operation.
• A number of pump sizes with 12V/24V DC options.
• Marine environment protected (under-deck).
• Low power consumption.
• Fitting kit included.
• Low back-drive.
• Quick release mounting.
• Low profile.

Technical Data

Voltage: 12V/24V DC
Current       Average                     Typical
                  60kgf at 25% duty     intermittent 650kgf
                  12V   24V                   12V       24V
HS+4010   2.0A  1.0A                  19.0A    9.0A
HS+4020   2.5A  1.3A                  25.0A   12.0A
Hard over time    12/24V DC (No load)
                            HS+4010 13 seconds
                            HS+40 20 9 seconds
Ingress protection IP67
EMC protection BS EN 60945:2002 (DC)
Ignition protection BS EN ISO 8846:2017
Ambient operating temp: -15 to + 55 deg C
Max thrust 703kgf (Intermittent)
Relief valve setting 62 bar (795kgf)
Orientation Red lead to positive - Extends
Black lead to positive - Retracts
Clutch coil 12W
Clutch connection DIN 43650 (4-9mm lead) IP67
Fluid ISO VG10 to VG40 hydraulic mineral fluid to ISO 6743-4 HV
Weight 11kg
Feedback Transducer Available upon request

Rudder Feedback Sensor

An integral rudder position sensor can be specified for the HS+40 range. See Order Code: R4660-a.
The sensor has no moving parts and is fitted directly to the cylinder, detecting the piston’s position.
The standard output signal is 0 to +5V, compatible with most autopilots.