Positioning & Motion
SS351 Heavy Duty Subsea Rotator
Heavy-duty 316 stainless steel rotator with analog or serial positioning control.
Hardware model · Reference POS-SI-SS351
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System overview
The SS351 rotates an inspection payload using a modular motor assembly and strain-wave gearing. Its 316 stainless steel housing is part of the documented SS350/SS351/SS352 family. Power, feedback, compensation and motion limits are configured for the application. A rotator is a single-axis component; the family sheet’s generic pan/tilt limit terminology does not imply a second axis.
Applications
- Rotating camera and sensor mounts
- Subsea inspection assemblies
- Remote payload orientation
Key features
- 65 ft·lbf / 88 Nm maximum torque.
- 150 lb / 68 kg maximum payload.
- 12-bit position feedback and 0.5–20°/s output speed.
- Internal/external compensation options.
Technical details
Electrical and motion
- Supply
- 20–30 VDC.
- Maximum drive current
- 300 mA–2.2 A serial DC at nominal torque, speed dependent; 2.0 A analog DC.
- Maximum static current
- 300 mA–1.2 A serial DC at nominal torque; 1.0 A analog DC.
- Maximum torque
- 65 ft·lbf / 88 Nm.
- Maximum payload
- 150 lb / 68 kg.
- Angular speed
- 0.5–20°/s.
- Position feedback
- 12-bit, approximately 0.1°.
- Backlash
- <3 arcminutes, approximately 0.05°.
- Optional limits
- Factory motion limits; source uses generic pan ±175° / tilt ±90° wording. Confirm the required single-axis travel.
Mechanical and environmental
- Housing
- 316 stainless steel
- Dimensions
- Source lists Ø117 mm × 228 mm length and Ø4.6 × 9.7 in. Length units disagree. SS350 flange option: Ø171 mm / 6.7 in. Request approved model drawing.
- Weight in air
- 9.8 kg oil-filled
- Weight in water
- 5.8 kg oil-filled
- Depth
- 3000 m with internal compensation; 6000 m with external compensation. Family table also lists 30 m air-filled.
- Operating temperature
- −20 to +50°C.
- Storage temperature
- −30 to +60°C.
- O-rings
- Buna-N, Viton or fluid-compatible option.
- Fasteners
- 316 stainless steel.
- Compensator
- Internal diaphragm, for oil-filled configuration.
Control and integration
- Serial control
- RS485 or RS232.
- Control software
- Laptop/PC with SIDUS Control Panel GUI, or a host implementing SIDUS serial commands.
- Analog control
- Analog control with feedback; factory configuration.
- Optional controls
- Pelco-D integration, keyboard/mouse/joystick control and digital feedback are listed as options.
- Connector
- Customer selectable; Subconn standard.
- Connector wiring
- Follow the connector diagram matching the ordered electrical interface; pin assignments are configuration-dependent.
Configuration options
Power and drive interfaceFactory configuration
Select the documented supply and analog or serial interface. Analog, AC and DC options have different current and torque ratings.
Mounting and motion limitsIntegration option
Agree mounting, payload centre of gravity, cable routing and required hard stops. Continuous rotation does not imply unlimited cable rotation.
CompensationDepth configuration
Internal compensation supports the stated standard depth. External compensation is a separate configuration; confirm fill fluid and all connected equipment.
Compatibility and naming
Family document has conflicting dimensions and generic pan/tilt terminology. Confirm exact rotator drawing, limits and electrical configuration. No public current operating manual found.
Datasheets & documentation
SS350 / SS351 / SS352 — Heavy duty rotators — specification
Applies to the named models and revision only. Housing, interface and performance differences must follow the individual model tables. Source discrepancies are recorded on the ROVITEC product pages; request the approved specification before integration.
Software compatibility and support
SIDUS control software and integration support
Request the control package and protocol documentation matching the ordered model, interface and hardware revision.
Product advice
Let’s discuss your requirements
Tell us about your application, operating conditions and preferred configuration.
These links open your email app. Send the email to submit your enquiry; demonstration dates and configuration are confirmed by ROVITEC.
roy@rovitec.no