300M AIST Mill Duty Shoe Brakes MBE MBT 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 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 – Thruster is mounted above the brakewheel – Fits in tight spaces