Chr. Mayr GmbH + Co. KG

• Dual circuit brake
• Function monitoring possible
• Simple assembly
• Preset air gap
• Low noise level

• Use in elevator and stage drives
• Ensure reliable and safe stopping in the event of power failure or disconnection of the power

• Humid and wet areas, and other foreign substances.
• Corrosive environments

Sharp-edged interruptions of the friction surface
 

The ROBA®-stop-silenzio is a quiescent current actuated, electromagnetic safety brake.

In the de-energised state, several compression springs press against the armature disks. The rotor is frictionally held between the armature disk and the intermediate disk or the intermediate disk and the flange plate or machine wall. The braking torque is introduced into the shaft via the teeth of the rotors and the hub.

The magnetic force of the coil in the coil carrier pulls the armature disk against the spring pressure against the coil carrier and the intermediate disk is pressed against the collar of the spacer bolts by the compression springs. The brake is released and the brake rotors with the hub can be released freely. 

Product features

Mounting position

• Mounting on the free shaft end

• For elevator drives and stage technology
• Dual circuit brake for passenger elevators, platform drives, hoists and conveyors

• Safe due to fail-safe principle
• Switching status monitoring
• Suitable for EMERGENCY STOP braking
• Redundancy through two independent braking circuits (EN 81)

• Electromagnetic

• Mechanical: Protection class IP 10
• Mechanical, only for version with cover, in the area of the rotators: Protection class IP 20
• Electrical: Protection class IP 54

• Simple assembly
• Preset air gap

• Soundproofed
• Noise level of the basic variant still below 60 dB(A) even after several million switching operations.

• Insulation class F

• Applicable up to 60% ED
• Longer duty cycle possible after consultation.