Overview
The Dunkermotoren GR 63X55 is a permanent-magnet brushed DC motor engineered for demanding industrial applications requiring reliable torque and smooth operation. This 24V DC motor delivers consistent performance across automation, positioning, and control systems. Available in new, no-box condition, it offers excellent value for system integrators and maintenance professionals seeking drop-in motor replacements or OEM upgrades.
Key Features
- Permanent-magnet brushed DC motor with low cogging torque and rugged design
- Bidirectional rotation capability independent of mounting position
- Precision ball bearings at motor output shaft for extended service life
- Class F insulation per VDE 0530 ensures thermal stability and durability
- Compatible with optional gearboxes (SG80K worm gearbox, SG120H angular gearboxes) and encoders (RE20S magnetic encoder)
Technical Specifications
- Model: GR 63X55
- Motor Type: Brushed DC motor, permanent magnet
- Nominal Voltage: 24 V DC
- Nominal Speed: 3350 RPM
- Nominal Torque: 27 Ncm
- Rated Power: 90 W
- Nominal Current: 4.9 A
- Starting Torque: 211 Ncm
- No Load Speed: 3650 RPM
- No Load Current: 0.4 A
- Demagnetization Current: 33 A
- Moment of Inertia: 750 gcm²
- Efficiency: 80%
- Thermal Class: F (155°C insulation class)
- Protection Rating: IP50
Typical Applications
The Dunkermotoren GR 63X55 is widely used in:
- Automatic sliding door operators (ES200 compatible systems)
- Industrial automation and material handling conveyors
- Precision positioning and control systems
- HVAC damper actuators and valve control
- Medical equipment and laboratory instrumentation
- Commercial door access and security systems
Compatibility & Replacements
Compatible With
- Dorma ES200 automatic door operators and sliding door systems
- Dunkermotoren SG80K worm gearbox (10:1 and 15:1 ratios available)
- Dunkermotoren SG120H angular gearbox systems
- Dunkermotoren RE20S magnetic encoder assemblies
- Standard 24V DC power supplies and industrial control systems
- Clockwise and counter-clockwise rotation configurations
Replaces / Drop-In Replacement For
- OEM Dorma ES200 sliding door motor units
- Original GR 63X55 30V and 40V motor variants (verify voltage configuration before ordering)
- Generic brushed DC motors with equivalent 24V / 27 Ncm specifications
Works With
- Standard 24V DC control circuits and contactors
- Proportional valve controllers and actuator drivers
- PLC-based motion control and automation systems
- Dunkermotoren encoder feedback for speed and position monitoring
- Gearbox assemblies from Dunkermotoren and compatible OEM suppliers
