ROBA-stop® S

Seawater-resistant safety brake

Reliable, powerful, seawater-resistant: high-performance safety brakes for maritime applications

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The new size 11 of the ROBA-stop® seawater brake

The proven seawater-resistant safety brake ROBA-stop® S is now available in the new construction size 11. As expected, it is sealed against dust and water and built with its enclosed cast steel housing featuring robust corrosion protection for harsh environments. The high braking torque range of up to 1,200 Nm also makes the ROBA-stop® S the first choice when reliable force is required. However, the new seawater brake does not just extend the series upward—it also brings significant improvements. Maintenance has become much easier: the rear of the housing is closed with a cover. For service interventions, such as a rotor replacement, only this cover needs to be opened. The heavy brake remains securely mounted. This makes maintenance easier, faster, and safer than ever before.

Features

  • Protection class IP67
  • Braking torques up to 1,200 Nm
  • Easy to install and maintain
  • High corrosion protection
  • Integrated terminal box, also IP67
  • Readjustable multiple times in case of wear
  • ABS (PDA) certified

ROBA-stop® S – Technical insights in the product video

 

Fast maintenance without risk

 

Typical application fields

Maritime applications Icon

Maritime applications

Port cranes Icon

Port cranes

Ship winches Icon

Ship winches

Jack ups Icon

Jack ups

Outdoor Icon

Outdoor

Steel industry Icon

Steel industry

Rolling mills, smelting plants

All technical details – compact in the data sheet

You will find the detailed technical specifications in the data sheet (PDF).
  • Technical drawing with dimensions
  • Data on braking torques, speeds, tightening torque, friction work, weight, etc.
  • Complete connection and installation dimensions
Standard designs
With emergency manual release
With emergency manual release

Release of the brake by tightening two manual release screws using a tool.

Inquire now
Lever manual release available
Lever manual release available

Release of the brake by actuating the lever. Locking of the lever is possible.

Inquire now

The right supply module for your ROBA-stop® S

ROBA® switch 10/017.000.2
ROBA® switch 10/017.000.2

Supply module for operating the brake with over-excitation

Over-excitation time to be set: 2.15 sec.

Go to ROBA® switch product page

ROBA® multiswitch 20/019.200.2
ROBA® multiswitch 20/019.200.2

Supply module for stable brake supply even with fluctuating input voltages

Over-excitation time to be set: 2 sec.

Go to ROBA® multiswitch product page

Leading manufacturer of power transmission technology

mayr® power transmission is one of the leading manufacturers of safety brakes, torque limiters, and backlash-free shaft couplings. Our comprehensive product portfolio ranges from mechanical safety clutches and electromagnetic spring-applied brakes to switchable couplings, slip clutches, and high-quality DC motors.
With many years of experience, we develop customized, cost-effective solutions – precisely tailored to customer-specific requirements. Numerous renowned machine and plant manufacturers worldwide rely on the quality and reliability of mayr® power transmission.

Leading manufacturer of power transmission technology
Personal consultation
Personal consultation
Our experts support you with selection and integration into your application – from dimensioning to commissioning. Contact us for individual consultation.
Many thanks for your enquiry. We will deal with your request as soon as possible.
Visit us at SMM 2026 in Hamburg
Visit us at SMM 2026 in Hamburg
Talk to our experts about your requirements on site.
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Location

Hamburg | Germany

Date Icon

Date

01–04 September 2026

Hall | Booth Icon

Hall | Booth

 A4 | 326

Downloads and further relevant content
Data sheet ROBA-stop® S
Data sheet ROBA-stop® S

All technical details on the ROBA-stop® S, summarized compactly – as a PDF.

Download PDF
Installation and Operational Instructions ROBA-stop® S
Installation and Operational Instructions ROBA-stop® S

All information on installation, commissioning, and handling – available directly as a PDF.

Download PDF
Crane systems and winch applications
Crane systems and winch applications

 

 

Go to industry page
Web seminar: safety brakes for crane systems
Web seminar: safety brakes for crane systems

 

 

Watch the web seminar
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