Vérins linéaires hydrauliques type 3 - 24V

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Raymarine

M81203

Hydraulic linear actuators Type 3 - 24V

Designed for autopilot systems on vessels requiring high thrust, the Raymarine Type 3 (24V) linear hydraulic actuator M81203 is ideal for boats equipped with a 24V power supply. This model in the Type 3 range delivers higher power than Type 2 actuators, suitable for heavy rudder loads. The product includes the linear hydraulic actuator, the key component for reliable steering.

Retail priceBenefit from the professional rate

3.855,32€

3.855,32€ ~~4.530,00€~~

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In stock

Free pickup point shipping over €150 in France
Pickup at Skysat possible

Custom installation

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Request a quote

Installers near you

thanks to our network of approved installers

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Support service

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Technical specifications

Max power consumption	960 W
Typical power consumption	600 W
Operating voltage	24
Operating temperature	-15 to 55 °C
Recommended fuse rating	40 A
Product width	101
Product height	171
Product depth	452
IP rating	IPX5
Compass safe distance	100 cm
Mounting type	Below deck, on a solid structure, connected to the tiller arm
Certifications	CE, IEC 60945
Displacement	1.6 L
Recommended oil type	ISO VG 15 or VG 22 mineral hydraulic oil
Piston rod material	Stainless steel
Max thrust	1000 kg
Drive unit type	Hydraulic linear actuator
Hard-over time	10-15 s
Strokes	250 mm
Mounting hardware included	No
Mounting orientation	Horizontal or angled
Tiller arm length	250-300 mm
Max pressure	70 bar
Boat displacement	Up to 35 000 kg
Integrated rudder angle sensor	No
Steering modes	Depends on the routing computer
Disengageable	Yes

Detailed description

The Raymarine M81203 hydraulic linear actuator Type 3 (24V) is designed for autopilot systems requiring substantial thrust force. This model integrates into maritime installations operating on a 24V power supply, unlike its counterpart the M81202 which operates on 12V. It differs from Type 2 actuators (E12207 on 12V and E12208 on 24V) by its ability to handle heavier rudder loads, positioning it for larger vessels or specific applications.

Integration and performance

Installing the M81203 actuator requires a very robust mounting structure capable of withstanding the generated thrust levels. Absolute cleanliness is essential when handling hydraulic systems to ensure proper operation of the check valves.

Specifications and compatibility

The Raymarine M81203 hydraulic linear actuator is a key component for SPX autopilot systems. It is compatible with various Raymarine route computers, and the SPX System Installation Guide (87072) and SPX System Commissioning Instructions (81287) manuals provide additional details for its integration. The precise dimensions of the unit and mounting points are detailed in the installation manual technical drawings for accurate planning.

Documentation

Type	Nom
	EN - Notice d'installation - Vérins linéaires hydrauliques type 3 - 24V
	EN - Technical Drawing - Hydraulic Linear Actuators Type 3 - 24V
	EN - Technical Document - Type 3 Linear Hydraulic Rams - 24V
	FR - Notice d'installation - Vérins linéaires hydrauliques type 3 - 24V
	EN - Declaration of Conformity - Hydraulic Linear Drives Type 3 - 12V
	EN - Declaration of Conformity - Hydraulic Linear Actuators Type 3 - 24V
	EN - Declaration of Conformity - Type 3 Hydraulic Linear Actuators - 24V
	EN - Declaration of conformity - Linear hydraulic actuators type 3 - 24V

Expert opinion

Pol CONIN

Digital Manager

« Technical analysis: Raymarine Type 3 linear hydraulic ram (24V) »

The Raymarine M81203 hydraulic linear actuator is a premium choice for sailboat and yacht owners with vessels typically over 40-50 feet requiring high steering power. Its Type 3 design is engineered for significant rudder loads where a Type 2 actuator would fall short. Integration into a 24V system is a key consideration during electrical planning, targeting vessels already equipped with this voltage or undergoing major refits.

The critical aspect of installation lies in the mounting. Raymarine emphasizes the need for a "very solid" mounting structure—a point often underestimated that can compromise the performance and durability of the entire autopilot system. It is essential to verify the strength of the rudder arm or quadrant and, if necessary, reinforce the mounting area. Hydraulic circuit management demands absolute cleanliness to prevent contamination that would immediately degrade actuator performance and valve reliability.

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Hydraulic linear actuators Type 3 - 24V

3.855,32€

3.855,32€ ~~4.530,00€~~

Frequently Asked Questions

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What is the required supply voltage for the Raymarine M81203 hydraulic linear actuator?

The Raymarine M81203 hydraulic linear actuator is designed to operate on a 24 V supply. It is a Type 3 model.

What are the mounting requirements for installing the M81203 hydraulic linear actuator?

Installation of the M81203 actuator requires a very solid mounting structure capable of withstanding the generated thrust levels. It is imperative that the vessel's structure, as well as the tiller arm or rudder quadrant, can withstand peak thrust levels. In some cases, it may be necessary to build a specially reinforced frame to mount the drive.

Do I need to maintain particular cleanliness when installing hydraulic systems?

Yes, absolute cleanliness is essential when handling hydraulic systems. Even the smallest dust particle could prevent the check valves in the steering system from functioning properly, which could reduce performance and potentially cause oil leaks.

With which autopilot systems is this Raymarine linear hydraulic actuator compatible?

The Raymarine M81203 linear hydraulic actuator is a key component for SPX autopilot systems. It is compatible with various Raymarine route computers.

What to do in case of hydraulic linear actuator failure?

In case of failure, the actuator is equipped with a quick-release tab (red tab). To release the actuator, pull this tab to disengage the R-clip, then manually lift the drive unit to remove it from the rudder stock and the steering gear.

What is the difference between a Type 3 linear hydraulic ram and a Type 2?

The Type 3 linear hydraulic ram (M81203) differs from Type 2 rams (such as the E12207 in 12V or the E12208 in 24V) by its ability to handle larger rudder loads. This makes it suitable for larger vessels or specific applications requiring substantial thrust force.

Is the Raymarine M81203 hydraulic linear actuator compliant with electromagnetic compatibility (EMC) standards?

Yes, Raymarine equipment and accessories, including the M81203 actuator, comply with the electromagnetic compatibility (EMC) regulations applicable for recreational marine environments. Correct installation is required to ensure EMC performance is not compromised.

How can I benefit from an extended warranty for this Raymarine product?

Raymarine recommends a certified installation performed by a Raymarine-certified installer. A certified installation allows you to benefit from an enhanced warranty. For further details, it is advised to contact your Raymarine dealer and consult the separate warranty document provided with the product.