Product Short Description
Product Name: GDM Series Coreless Disc DC Servo Motor
Overview: The BAUMULLER GDM120N-528/0750 is a coreless (ironless rotor) disc-type permanent magnet DC servo motor from the German manufacturer Baumüller. It features zero cogging torque, extremely low moment of inertia, and ultra-high dynamic response, making it ideal for high-speed start-stop and reciprocating motion applications.
Description
- Rated Power: 750 W (0.75 kW) — some sources cite 150 W
- Rated Voltage: 24 V DC
- Rated Current: 8.6 A
- Rated Speed: 2050 r/min — some sources cite 750 r/min
- Rated Torque: 0.7 N·m (70 N·cm)
- Overload Capacity: 3× short-term peak torque
- Flange Diameter: 120 mm (flat, ultra-thin structure)
- Protection Rating: IP44
- Insulation Class: F (155 °C)
- Cooling: Natural convection (no external fan)
- Weight: Approximately 3.2 kg — some sources cite 1.8 kg
- Carbon Brush Life: ≥ 8000 h under normal conditions
Key Features:
- Iron-core hollow rotor with NdFeB permanent magnets
- Zero cogging torque — smooth low-speed operation (≤1 r/min with no jitter)
- Ultra-thin disc profile for compact installations
- Drum commutator design for low electromagnetic noise
- Optional: incremental encoder (RM36, 1024 lines sin/cos), electromagnetic brake, reduction gearbox
Application Scenarios: Precision positioning, high-speed transport, winding/unwinding, label drivers, cutting stations, tension control, textile machinery, semiconductor equipment, medical precision pumps, and dynamic test loading.
Working Principle: As a DC servomotor, it converts electrical energy into rotational mechanical energy. The ironless disc rotor eliminates cogging effect, delivering linear torque across the entire speed range with minimal ripple.
Installation & Notes:
- B5 flange direct mounting (120 mm round flange)
- Radial side outlet flat connector as standard
- Low armature inductance design extends carbon brush service life
- Verify exact rated power/speed with manufacturer documentation before specifying for critical applications
Reviews
There are no reviews yet.