The RAM T2 Hydraulic linear actuator combines a cylinder, pump, motor, clutch, and reservoir in a pre-filled, sealed unit. Designed to be used on vessels fitted with mechanical primary steering that can be back-driven. When the clutch is disengaged the cylinder is free and moves with the primary steering. To operate the unit in autopilot mode the course computer energizes the clutch solenoid coil and runs the bi-directional motor to extend and retract the ram. Internal relief valves protect the unit and its mountings from the rudder strikes, grounding etc.
Performance
Maximum thrust (intermittent)
|
675 kg
|
Hard over time nominal RAM-T2
|
9 sec
|
Temperature rating minimum
|
-20ºc
|
Temperature rating maximum
|
+65ºc
|
Relief valve setting
|
62 bar
|
Back-drive at 12 sec Hard-over
|
7kg
|
Electrical
Motor voltage nominal
|
24v DC
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Motor power 100 watt
Max current 24v 25% duty
|
11.2 A
|
Rotation
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Reversing
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Protection
|
IP44
|
Connection
|
1m 2 Core Flying Lead
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Ignition protection
|
BS EN 28846:1993
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Coil power continuous
|
12 watt
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Recommended oil
|
Mineral based hydraulic ISO VG10
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Materials
Body
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Aluminium BS 1490
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Piston rod
|
Chrome Plated Stainless Steel
|
Seals
|
Nitrile & PTFE
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Body Protection
|
SP270
|