Ruggedized Stabilization Mount

RSM 400 - Marine

The compact Ruggedized Stabilization Mount 400 targets the acquisition of perfectly stabilized offshore data.

Marine Gyro Stabilizer RSM 400


  • Compact and lightweight design

    suitable for deployment on USVs and small buoys
  • Adaptable to operational requirements

    with stronger motors and heating elements
  • Most cost-effective marine Gyro Mount

    suitable for entry-level users

Better data with cost-effective gyro stabilizer

The RSM 400 is the smallest and most cost-effective of SOMAG’s marine gyro stabilizers. The ruggedized platform compensates roll and pitch motions of boats and ships moving in wavy waters. The two-axis gimbal boasts an innovative round shape, a small form factor and low weight suitable for capturing highly accurate footage even on smaller buoys and on ASVs/ USVs for unmanned missions.

Precisely adaptable to your needs

The electromechanical gyro stabilizer ensures highly accurate data capturing with electro-optical reconnaissance and surveillance camera systems up to 15 kg. Your sensor system weighs more than 15 kg? SOMAG offers a more powerful version of the RSM 400 with stronger motors, which keeps payloads leveled up to 25 kg. No matter which payload is combined with the Mount, the result is always the same – the Mount load remains perfectly balanced, even when the ground is moving.

The RSM 400 can be adjusted to meet your specific application requirements. For data collection in colder environments, SOMAG offers the possibility to equip the gyro-stabilized Mount with additional heating elements to guarantee a flawless operation down to -35 °C. High quality materials and a solid mechanical design ensure an effective use of this salt- and splash-water resistant gyro mounting system.


Angular Stabilization RangesPitch at 0° Roll:
Roll at 0° Pitch:
Yaw (Drift):
≤± 15.5°
≤± 15.5°
no drift correction
Residual Deviation1≤0.4° rms
Payload215 kg | 12.3 kg | 10.5 kg
33.1 lbs | 27.1 lbs | 23.1 lbs
Optional Payload325 kg | 22.5 kg | 19 kg
55.1 lbs | 49.6 lbs | 41.9 lbs
Continuous Torque8 Nm
Optional Continuous Torque315 Nm
Dynamic Peak Torque416 Nm
Optional Dynamic Peak Torque3,430 Nm
Mass6.6 kg | 14.5 lbs
Dimensions Height5
156.5 mm | 6.2 in
Ø335 mm | Ø13.1 in
IP ClassIP 67
Operating Temperature-30 °C … +55°C | -22 °F…+131 °F
Storage Temperature-55 °C … +85 °C | -67 °F…+185 °F
Communication InterfacesUSB | RS422 | RS232
Operational Voltage28 VDC (24…30 VDC)
Average Power Consumption6 at Operational Voltage70 W
Peak Power Consumption6 at Operational Voltage130 W
Applied StandardsIACS E10, DNV GL, 2006/42/EC Machinery
Preliminary data, subject to change

1 Vehicle angular motion ≤± 10° / 15°/s / 40°/s2 – small periodical lateral accelerations (≤ 0.2 g) acceptable, constant lateral accelerations for more than 1 minute reduce the performance of the Mount (can be compensated by external GPS input)
2 Possible payload weight depends on lateral acceleration and CoG of payload | shown data is based on 0.3 g lateral acceleration and a CoG payload offset to the Mount surface of: 100 mm (3.9 in) | 200 mm (7.9 in) | 250 mm (9.8 in)
3 Movement reduction in roll and pitch to ≤± 12.5° / Height: 158 mm (6.2 in)
4 Maximum duration 90 s at 55 °C surrounding temperature / longer if temperature inside the unit is < 55 °C
5 Minimum 132.5 mm (5.2 in) | Maximum: 180.5 mm
6 Horizontal payload CoG offsets are not considered; without wind force and other possible external forces


Sharp images and a stabilized field of view despite high waves and rough weather conditions? The solution is Gyro Stabilization Mounts, developed especially for this purpose. Roll and pitch movements are reliably compensated to keep the sensor system perfectly balanced. Would you like to see in which cases SOMAG Marine Mounts are beneficial? We have compiled a number of examples for you that show the variety of application scenarios for our devices.

Discover All Marine Applications

Gyro stabilizer for antenna paylods

RSM 400 in field


Discover all Gyro Stabilization Mounts with their specifications at a glance in our new product catalog. Below you will also find Mount-specific documentation. Do you need other documents? Then do not hesitate to contact us. We will gladly send you manuals on request.

SOMAG Product Brochure

RSM 400 Declaration of Conformity

Why Customers

Trust Somag

We used the RSM 400 on the upper deck of a research vessel during the field tests of the project ACTRESS – Architecture and Technology Development Platform for Realtime Safe and Secure Systems project (duration 3 years), funded by the Federal Ministry for Economic Affairs and Energy under grant no. 03SX448. Up to a wave height of approx. 1.5 m, the Mount ensured to a high standard that our Riegl laser scanner VZ2000i was stabilized and we were thus able to obtain laser scans of traffic situations at close range as part of collision prevention measures. We chose a SOMAG RSM 400, because the dimensions and technical data of the Gyro Mount have been impressive. The overall impression was very convincing. The Mount worked reliably and compensated for the ship’s movements in real time.

Arnold Akkermann, Researcher, OFFIS – Institute for Information Technology, R&D-Division Transportation, Oldenburg, Germany

Mount Control App and Software Features

Mount Control App
For all Gyro Stabilization Mounts, SOMAG provides a self-developed Mount Control App with numerous features. It is your all-in-one tool for managing your Mount. The app is part of the standard scope of delivery of each device and is delivered on a USB stick together with the Mount.

Software Features
SOMAG offers optional Software Features which allow you to customize your Mount individually to your mission requirements. Feature management and settings can conveniently be made in the SOMAG Mount Control App. Get the most out of your stabilization platform and learn more about the optional Software Features.

SOMAG Mount Control App

Software Features

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