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300M AIST Mill Duty Shoe Brakes
  • MBE
  • MBTE

The AIST rated mill duty brakes are designed for heavy-duty steel mill and other harsh environments and applications which require high integrity products.

The advanced design features, combined with fabricated steel construction, makes this range of brakes suitable for applications requiring reliable braking with the minimum of maintenance and downtime. Applications include steel mills, stacker reclaimers, shiploaders, port cranes, shipyard cranes, offshore drilling rigs, missile assembly cranes, incinerator cranes and large gantry cranes.

300M Range
  • 5” – 30” diameter
  • 10 – 11,000 lb. ft. torque
  • AC, DC, hydraulic
  • Explosion proof
  • AIST drop-in designs

Type "MBE" - DC Magnet
  • Spring –applied and electromagnetic release 
  • Replaceable magnet coils
  • Class F insulation 
  • Shunt: 12V through 350V DC 
  • Series: 5A through 1400A 

MBE Options:
  • Auto-adjuster for lining wear 
  • Forcing rectifier (fast response for crane hoists, etc.) 
  • Constant potential rectifiers (for crane bridges/trolleys) 
  • Terminal box rectifiers (Special applications - Contact Engineering
  • Class H insulation 
  • Nitride Corrosion Protection
    SIST-NEMA Hi-Tork 300M Duty Shoe Brakes MBE

Type "MBT" - 3 PH. AC and DC
  • Fast response - standard units 2000 cycles per hour
  • Spring applied and electrically released
  • Continuously or intermittently rated, Service < 40°C
  • Class F insulation
  • AC Supplies: 230-460-575/3Ph/50-60 Hz
  • DC Supplies: 250V

MBT Options:
  • Auto-adjuster for lining wear 
  • Adjustable external torque spring with calibrated indicator 
  • Externally adjustable, stepless time delays in both directions (set and release) 
  • Braketronic Controller 
  • Nitride Corrosion Protection 
  • Latching hand release 
  • Up to 3 limit switches to indicate brake position 
  • Available in vertical design – NEW!    
    – Thruster is mounted above the brakewheel
    – Fits in tight spaces
    SIST-NEMA Hi-Tork 300M Duty Shoe Brakes MBT

Type "MBM" - Hydraulic

  • Hydraulically-applied and spring released 
  • Pedal operation - One (1) or Two (2) Brakes 

MBM Options:
  • Remote bleeding 
  • Nitride Corrosion Protection
    SIST-NEMA Hi-Tork 300M Duty Shoe Brakes MBM

Types "MBT" and "MBE can be fitted with Pedal or Power assisted hydraulic over-ride to produce a dual-purpose brake. This hybrid brake is useful for EOT bridges, gantry cranes and similar applications where dual control and/or emergency stopping and parking are required.


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