GESHI Y2EJ Electromagnetic Brake Motor 0.55-45kW IP54

This three-phase induction motor features an integrated direct current disc brake, engineered for applications spanning from 0.55 kW to 45 kW across frame sizes H80 through H225. It delivers rapid electromagnetic braking combined with manual release functionality to ensure precise positional halts in heavy-duty machinery. Designed for industrial plant integration, the unit operates reliably under standard electrical grids while maintaining strict mechanical stability.

Industrial automation lines often suffer from uncontrolled mechanical overrun during power interruptions or routine stop cycles, leading to alignment drift and positioning errors. This electromagnetic brake motor resolves these challenges by engaging a spring-applied friction disc instantly upon de-energizing the electromagnetic coil. The integration within the drive layer allows direct connection to standard control panels without requiring complex external braking choppers. Technicians benefit from predictable deceleration rates, which protect downstream gearboxes and structural components from excessive shock loads during repetitive cycling routines.

Technical Specifications

Rated Power: 0.55 kW - 45.0 kW @ 50 Hz / 60 Hz

Frame Size: H80 - H225 @ Standard IEC Foot and Flange Mountings

Mounting Configuration: B3 / B5 / B35 @ IM Code Compliant

Enclosure Protection: IP54 @ IEC 60034-5

Insulation Class: Class F @ 155 degC Temperature Limit

Energy Efficiency: IE1 @ Standard Baseline Efficiency

Brake Type: Integral DC Disc Brake @ Manual Release Equipped

Brake Coil Voltage: 99 VDC - 190 VDC @ Rectified AC Supply

System Integration and Hardware Setup

Mechanical installation requires secure bolting to rigid structural foundations using grade 8.8 fasteners to minimize vibration transmission during sudden braking events. Alignment tolerances between the motor shaft and driven load must remain within 0.05 mm to prevent premature bearing wear and shaft fatigue. Electrical connections require a dedicated conduit entry for the main three-phase supply and a separate shielded cable for the DC brake rectifier circuit to prevent electromagnetic interference with nearby sensors. Technicians must connect the protective earth terminal directly to the main plant grounding grid using low-impedance copper conductors. The rectifier module should be wired through an auxiliary contactor on the main motor starter to ensure the brake coil de-energizes simultaneously with the stator windings for synchronized stopping performance.

Reliability and Environmental Durability

The motor housing utilizes cast aluminum or high-grade cast iron depending on the frame dimension, providing robust structural integrity and efficient thermal dissipation through external cooling fins. The IP54 enclosure rating protects internal stator windings and the braking mechanism against dust ingress and splashing water from normal operational directions. Class F insulation materials withstand thermal stress up to 155 degC, ensuring stable operation within ambient temperature ranges from -20 degC to 40 degC. Deep groove ball bearings are pre-packed with high-temperature lithium-based grease to extend maintenance intervals and reduce friction losses. Regular visual inspections of the manual release lever and friction disc gap ensure consistent braking torque throughout the operational lifecycle.

Typical Applications

Conveyor speed control systems require immediate halting capabilities to prevent material spillage or backdriving when incline belts power down. This motor fits this requirement by engaging its integral disc brake instantly upon stop commands, securing heavy loads on vertical or slanted paths.

Machine tool index tables demand micro-positioning accuracy to ensure high-precision component machining without mechanical drift. The fast response time of the electromagnetic brake delivers repeatable stopping angles, eliminating positioning errors during automated tool changes.

Industrial hoists and lifting winches rely on failsafe holding torque to suspend loads securely when the primary power source disconnects. The spring-applied mechanical brake automatically clamps the rotor shaft in unpowered states, providing reliable load retention for overhead handling equipment.

Packaging and sorting machinery depend on synchronized high-cycle start-stop operations to maintain accurate product spacing along transfer lines. The thermal resilience of the Class F insulation system handles frequent thermal loads generated during rapid duty cycles without premature winding degradation.

How It Works

The operational cycle initiates when three-phase alternating current flows into the stator windings, generating a rotating magnetic field that induces rotor rotation. Simultaneously, an auxiliary rectifier circuit converts incoming alternating current into direct current, energizing the electromagnetic brake coil housed inside the rear endshield.

The energized electromagnetic coil pulls the armature plate inward against heavy pressure springs, creating an air gap that allows the friction disc and motor shaft to rotate freely without mechanical drag.

When the control system cuts power to the motor, the electromagnetic field collapses instantly, releasing the magnetic pull on the armature plate.

The internal pressure springs drive the armature plate forward, clamping the friction disc firmly between the friction surfaces and the motor endshield.

This mechanical clamping action converts kinetic energy into thermal energy, bringing the rotor shaft to a controlled stop while holding the final position securely until the next power cycle begins.

[DIAGRAM: Schematic flow chart illustrating the electrical signal path from the AC main supply and DC rectifier to the electromagnetic brake coil, coupled with a mechanical cutaway showing spring-applied armature clamping.]

Key Features

Integrated DC Disc Brake - Combines the drive motor and safety brake into a single compact housing, eliminating the need for bulky external braking assemblies. This design reduces overall machine footprint and simplifies mechanical assembly procedures for original equipment manufacturers.

Manual Release Lever - Allows maintenance personnel to manually disengage the brake mechanism during power outages or manual setup procedures. Technicians gain the ability to rotate the motor shaft by hand for alignment checks and emergency clearance tasks.

Fast Braking Response - De-energizes rapidly to minimize stopping time and eliminate rotational overrun during repetitive operational cycles. Users achieve higher production throughput and tighter positional accuracy on automated processing lines.

TEFC Enclosure Design - Utilizes an external shaft-mounted cooling fan combined with finned housing geometry to dissipate internal thermal energy efficiently. This thermal management prevents hot spots and extends the operational lifespan of the stator insulation.

Multiple Mounting Configurations - Supports B3 foot, B5 flange, and B35 combined mounting layouts to fit diverse mechanical integration requirements. Engineers can adapt the motor to existing machine frames without modifying foundational mounting plates.

Class F Insulation System - Employs high-temperature varnishes and winding materials rated for continuous operation up to 155 degC. Plants benefit from enhanced resistance to thermal overload conditions during demanding industrial duty cycles.

This comprehensive feature set positions the motor for heavy-duty industrial environments requiring reliable motion control, precise stopping performance, and robust mechanical durability across manufacturing sectors.

Selection Guidance and Alternative Options

Selecting the correct brake motor requires evaluating load inertia, required stopping time, operating duty cycle, and ambient environmental conditions. Engineers must ensure the selected frame size and power rating match the continuous torque demands of the driven machine without exceeding thermal limits. When replacing legacy units, technical teams should cross-reference shaft dimensions, flange diameters, and brake coil voltage requirements to ensure seamless mechanical and electrical compatibility. Beijing Zhongping Technology provides comprehensive cross-reference selection support and local technical assistance to help engineers identify optimal motor configurations for specific plant requirements.

Frequently Asked Questions (FAQ)

1. What is the standard stock availability and delivery lead time for these brake motors?

Beijing Zhongping Technology maintains regional buffer stock for standard frame sizes, enabling rapid same-day dispatch and short delivery windows to minimize plant downtime.

2. What warranty coverage and return policies apply to this motor series?

All units are backed by a comprehensive 12-month manufacturing warranty, supported by factory pre-shipment quality testing and local RMA assistance through Beijing Zhongping Technology.

3. What is the required DC voltage input for the integrated electromagnetic brake?

The internal brake coil operates on a rectified DC voltage ranging from 99 VDC to 190 VDC, supplied via an integrated bridge rectifier connected to the main AC source.

4. Can the braking torque be adjusted on this motor model?

The braking torque is factory-set for optimal performance based on frame size, but specific spring configurations can be modified by authorized service personnel if application demands change.

5. What environmental protection rating does the motor enclosure provide?

The motor features an IP54 protection rating, preventing harmful dust accumulation and water splashes from standard operational angles.

6. How is the manual release mechanism operated during a power failure?

Technicians pull or rotate the external manual release bolts against the spring pressure to mechanically retract the armature plate and free the rotor shaft.

7. What routine maintenance is required for the electromagnetic brake assembly?

Routine checks should include measuring the air gap between the armature and friction plate, inspecting friction disc wear, and verifying electrical terminal tightness.

8. How does the insulation system handle high ambient operating temperatures?

The Class F insulation system withstands thermal limits up to 155 degC, ensuring stable winding integrity within standard industrial temperature ranges.