Electro Mech Transmission

The “R” Series is made up of a new generation of asynchronous standard motors (SMR) or brake motors (BAR or BMR), 4 and 6 poles and IEC frame sizes from 56 up to 132.

Available nominal torques range is from 0.4Nm to 37Nm on 4 pole motors while it’s from 3.88Nm to 54.71Nm on 6 pole motors. R series motor is designed to be controlled by inverter only. The reference frequency at a voltage of 400V is 120Hz instead of 400V 50Hz.

The special technology allows to the R series motors to have the following features:

• constant torque from 3 to 120Hz
• torque close to the nominal one at 0 rpm (only in a closed loop vector system)
• higher Power Density (same power in smaller motor sizes)
• reduced moment of inertia compared to a motor with same power (high dynamics)
• faster acceleration and deceleration times
• excellent behaviour during transients (4 poles) and in continuous duty (6 poles)
• optimized for use with different types of inverters in the market
• balancing suited for operation with high acceleration
• standard motor sizes and mounting
• low noise
• standard electrical wiring
• encoder option available
• user friendly product (connectors not needed)

BMBM series includes brake motors with twin DC brakes working independently of each other, starting from 63 up to 315 frame sizes and power range from 0.08 kW up to 132 kW. BMBM series motors are designed for intermittent duty S3 25% (see technical data). BMBMX series motors for intermittent duty S3 40% are also available.

BMBM series main feature is a very high reliability in those lifting applications where there are high demands of safety and silence. For these reasons BMBM series motors are particularly suitable to be used in TV-cine studios and theatre stages. The motor brakes in case of power supply failure. The braking action is always secured through a very quick and precise stop assuring a safe and a prompt stop in case of unintentional power supply failure. The brake torque remains the same in both directions of rotation and the braking action occurs without shaft axial sliding. The brake components and assembly are designed with special features to be noiseless during stops.

The manual brake release is made up of two levers (one for each brake) so to avoid unwanted starts.

It’s possible to release the brakes just using one hand. The two brakes are supplied through independent rectifiers which are positioned in the terminal box.

• IEC Metric Motors from 71 to 315 frame size
• Totally Enclosed Fan Cooled (TEFC)
• Power range from 0,04 up to 132 kW. Single speed 2,4,6,8 pole o double speed 2/4,4/8, 2/8,2/6,2/12,4/6,4/12,4/16 pole
• BAX series includes single speed motors for continuous duty and IE2 / IE3 efficiency class (regulation EU 2019/1781). Alternatively the BA series can be made in the ‘Enhanced Power’ version for intermittent duty only
• IP 54 enclosure (IP55 on request)
• F class insulation
• AC or and DC Brake
• Very high and adjustable brake torque
• Heavy Duty Cycle
• Low Maintenance
• Aluminum frame up to 132 frame size, cast iron frame from 160 to 315 frame size
• Cast iron flanges starting from 100 frame size
• Motors with NEMA dimensioned shafts and flanges available on request
• The brake moving element and the brake coil have a laminated magnetic nucleus to reduce
• losses and to allow very fast brake
• The cooling fan is fitted between the motor and the braking assembly
• Manual brake release screw
• Hex hole on nondrive shaft end for manual rotation (on request starting from 160 frame size)
• cCSAus mark and compliance to efficiency rule EISA (CC051A) and NRC (on request)
• CCC mark and compliance to Chinese efficency rule and China Energy Label (on request)
• BIS certification – ISI mark (on request)
• EAC mark (on request)
• NOM mark (on request)

BA-BAX series main features are a very quick braking action, both in realeasing and braking operation, a high brake torque, a constant braking time and a very high number of start/stop cycles also under severe applications.

Get best price for Mgm Varvel Brake Motor