DC motor

direct current48 Vpermanent magnet

Product overview Our customized motors in sizes 63 and 71 are equipped with permanent magnet excitation with flux concentrators, designed to withstand high demagnetizing currents. This feature enables operation across a wide speed range in both constant and variable torque regimes, including use with low form-factor speed drives. Under these conditions the motors deliver high efficiency and low-noise torque ripple.

Key features

• 2-pole magnetic circuit with flux concentrators, ferrite magnets
• Cooling class IC410
• Bearings with increased clearance, shielded and lifetime lubricated
• Available construction/mounting forms: IMB5, IMV1 and IMV3 (sizes 63 and 71)

Technical table CHARACTERISTICS AND NOMINAL VALUE | MOTOR SIZE 1 Nm | MOTOR SIZE 2 Nm
Nominal torque, locked rotor, continuous duty, dt aw = 115K* | 1.12 Nm | 2.15 Nm
Peak torque, locked rotor | 4 Nm | 8 Nm
Maximum speed | 12500 rpm | 6000 rpm
Rotor inertia | 560 x 10^-6 kgm² | 1100 x 10^-6 kgm²
Mechanical time constant *** | 18.5 ms | 16 ms
Weight | 5 kg | 8 kg
Thermal impedance * | 2 °C/W | 1.2 °C/W
Thermal time constant * | 1320 s | 1680 s
Electrical time constant *** | 5.00 ms | 6.00 ms
Speed constant *** | 1.38 rad/s/Nm | 0.58 rad/s/Nm
Brushes voltage drop at nominal current | 1.20 Vdc | 1.20 Vdc
Supply > 48Vdc | 1.20 Vdc | 1.20 Vdc
Supply ≤ 48Vdc | 0.40 Vdc | 0.40 Vdc

Construction & mechanical details Cooling: IC410. Bearings: shielded, lifetime lubricated, with increased clearance to tolerate demagnetizing currents and wide speed ranges. Available mounting forms: IMB5, IMV1, IMV3. Flux concentrators and ferrite magnets provide resistance to demagnetization and reduce torque ripple noise.

Technical specifications

• Product family: Permanent Magnet DC Motors
• Available sizes: 63 and 71
• Nominal torque (size 1): 1.12 Nm
• Nominal torque (size 2): 2.15 Nm
• Peak torque (size 1 / size 2): 4 Nm / 8 Nm
• Maximum speed (size 1 / size 2): 12500 rpm / 6000 rpm
• Rotor inertia (size 1 / size 2): 560 x10^-6 kgm² / 1100 x10^-6 kgm²
• Mechanical time constant: 18.5 ms (size 1), 16 ms (size 2)
• Electrical time constant: 5.00 ms (size 1), 6.00 ms (size 2)
• Speed constant: 1.38 rad/s/Nm (size 1), 0.58 rad/s/Nm (size 2)
• Brush voltage drop at nominal current: 1.20 Vdc
• Thermal impedance (size 1 / size 2): 2 °C/W / 1.2 °C/W
• Thermal time constant (size 1 / size 2): 1320 s / 1680 s
• Weight (size 1 / size 2): 5 kg / 8 kg
• Magnet type: Ferrite magnets with flux concentrators
• Cooling class: IC410