Hydraulic Ram T0 12V - The RAM T0 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.
The RAM T0 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 bidirectional motor to extend and retract the ram. Internal relief valves protect the unit and its mountings from rudder strikes, grounding, etc
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Typical Yacht Size |
Up to 10m |
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Typical Yacht Displacement |
Up to 6 tons |
Technical Data
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Voltage |
12 VDC |
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Current |
60 kg at 25% duty - 1.3A // Intermittent 350 kg - 14.0 A |
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Hard-over time |
12 seconds (Nominal) |
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Volume (average) |
234cc |
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Ingress protection |
IP67 |
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EMC Protection |
BS EN 60945:2002 (DC) |
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Ignition Protection |
BS EN 28846:1993 |
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Declaration of Conformity |
EMC Directive 2014/30/EU |
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Ambient temperatures |
-15 to + 55 deg C |
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Max thrust |
350 kg (Intermittent) |
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Dimensions |
101 x 728 mm |
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Construction |
Aluminum |
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Max Stroke |
203 mm |
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Coupling Radius |
178 mm |
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Max Torque |
545Nm |
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Orientation |
Red lead to positive - Extends // Black lead to positive - Retracts |
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Clutch coil |
12 watt |
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Clutch connection |
DIN 43650 (6-8 mm cable) |
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Fluid |
ISO VG10 to VG40 hydraulic mineral fluid to ISO 6743-4 HV |
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Suitable commercial Fluids |
Fuchs Renolin B 15 HV1 // Seastar HA5430 |
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Weight |
8 kg |
PUMP-5: 24V DC: Reversible hydraulic gear pump. 3.0L (183 cui) / min. For cylinder displacement of 290 - 960 cc (17.7 - 58.5 cu. in.). O-Ring Boss (ORB) connections. Includes 3 x ORB-5 to 9/16 UNF fittings. SteadySteer compatible. (NAC-3 / AC42 required).
PUMP-4: 12V DC: Reversible hydraulic gear pump. 3.0L (183 cui) / min. For cylinder displacement of 290 - 960 cc (17.7 - 58.5 cu. in.). O-Ring Boss (ORB) connections. Includes 3 x ORB-5 to 9/16 UNF fittings. SteadySteer compatible. (NAC-3 / AC42 required).
PUMP-2: 12V DC: Reversible hydraulic gear pump. 0.8L (49 cu.in) / min. For cylinder displacement of 80 cc - 250 cc (4.9 - 15.2 cu.in). O-Ring Boss (ORB) connections. Includes 3 x ORB-5 to 9/16 UNF fittings. SteadySteer compatible. (NAC-2 / AC12 required).
Hydraulic Ram T1 12V: High power, efficient drive units for maximum power with minimum consumption. Ram drives allow the Power Steer mode on the Pilot to be used in cases of manual steering failure. Fully Integrated hydraulic system, no external hoses, reservoirs etc.
Hydraulic Ram T2 24V: High power, efficient drive units for maximum power with minimum consumption. Ram drives allow the Power Steer mode on the Pilot to be used in cases of manual steering failure. Fully Integrated hydraulic system, no external hoses, reservoirs etc.
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