Electromagnetic brake ROBA-stop® S

Overview
The ROBA-stop® S is a monoblock safety brake with electromagnetic actuation and a sealed housing for protection against mechanical and climatic influences. The integrated housing and terminal box are cast as one unit and can be supplied with high-quality corrosion protection and optional anti-condensation heating to avoid internal condensation. It is suitable for maritime and other harsh-environment industrial applications.

Key product information

• Monoblock safety brake for extreme ambient conditions
• High corrosion protection options
• Protection class up to IP67

New size
Size 11 now available for seawater and other severe-environment applications.

Application

• Harsh environments: port cranes, ships, offshore platforms, tunnels, mining, hoists and winches

Mounting position

• Mounting on the free shaft end

Safety

• Fail-safe principle
• Switching state monitoring possible
• Suitable for emergency-stop braking

Benefits

• High permissible friction work for demanding duty

Design

• Electromagnetic actuation; enclosed brake housing

Equipment / Features

• Anti-condensation heating (option)
• Wear monitoring possible (option)
• Manual release options: lever or tool-operated emergency release

Construction - Protection class

• Monoblock cast housing with specially sealed terminal box
• Protection up to IP67

Assembly and maintenance

• Low maintenance design

Sound

• Not noise-damped

Temperature / Insulation

• Insulation class F

Duty cycle

• Suitable for 100 % duty

Technical data - sizes overview (table)
Size | 8 | 9 | 10 | 11
Braking torque M_N max [Nm] | 150 | 300 | 480 | 1.200
Nominal braking torque standard M_N [Nm] | 100 | 200 | 400 | 800
max. speed n_max [min^-1] | 3.400 | 3.000 | 3.000 | 3.000
min. hub bore d_min [mm] | 25 | 25 | 25 | 55
max. hub bore d_max [mm] | 45 | 50 | 60 | 75
Outer diameter D [mm] | 240 | 270 | 310 | 450

Examples of application / Documentation

• Typical uses: harbour cranes, maritime applications, offshore platforms, tunnel and mining equipment, cranes and winches
• Product data sheets, CAD files and variant documentation available per configuration

Technical specifications

• Brand: mayr®
• Model: ROBA-stop® S
• Protection class: up to IP67 (sealed monoblock housing and terminal box)
• Design: electromagnetic, enclosed housing
• Corrosion protection: high-quality coatings for maritime/harsh environments
• Anti-condensation heating: available
• Monitoring: switching state monitoring and wear monitoring possible
• Safety principle: fail-safe
• Insulation class: F
• Duty cycle: suitable for 100 % duty
• Available sizes and key dimensions/torques: see sizes overview (8–11)