Products > Mechanical Transmission, Actuator, Positioning > Electromagnetic brake > HEMA Maschinen- und Apparateschutz

Spring applied single disc safety brake, electromagnetic release
3 kN | HEMS-300 HEMA Maschinen- und Apparateschutz

The HEMS-300 is an ultra compact electromagnetic operating, retaining, and emergency brake with very low energy consumption. The brake operates with an "energy store" in the form of a pressure spring and is vented electromagnetically, so it can also be used as a safety brake (failsafe principle). Its floating bearing compensates for minor axial asymmetries in the brake disc. The linings present a full contact surface in conjunction with the parallel transfer of forces to the brake blocks. The linings therefore do not need to be ground in. The brake is available for several disc thicknesses, in two flange designs (parallel or vertical for any installed position), and for two braking torque ranges.

Applications:
Universal operating/retaining/emergency brake:
general machine building
crane design, e.g. as chassis brake
conveyor systems and mining installations
applications with greater temperature requirements
from -40°C up to +80°C

Design:
nominal contact force: 3 kN
max lining wear: 7 mm per side
unadjusted lining wear: 0.5 mm per side
configurable braking torque: 60-100%
weight: 6,5 kg
brake disc diameter: from 125 mm
rated voltage: 230 - 400 Vac ± 10%
rated frequency: 50 - 60 Hz
rated power: 1 kVA breakaway phase,
10 VA retainingphase
protection classification: IP 65
duty cycle: 100% absolute
max switching frequency: 600 h-1 at 20 °C