M-103-A-22 Kollmorgen
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The Kollmorgen M-103-A-22 is part of the M Goldline Servo Motors series and has a rated power of 0.54 kW with a rated speed of 7500 RPM. This servo motor provides a continuous stall torque of 0.84 N·m, peak stall torque of 2.41 N·m, and uses a resolver as its feedback device. The unit features IP65 sealing and has a bayonet connector style.
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Product Description:
The M-103-A-22 is a brushless servo motor built by Kollmorgen within the M Goldline Servo Motors series. As a compact rotary actuator, it converts drive current into controlled torque for positioning and velocity loops used in pick-and-place heads, indexing tables, and small packaging axes. Its size makes it suitable for motion systems that need quick response and accurate control in a limited installation space.
At 40 °C, the motor can deliver a continuous stall torque of 0.84 N·m while drawing 2.4 A RMS, a combination that matches low- to mid-range load demands without overheating. When short bursts are required, a peak current of 7.2 A RMS is supported by the winding design. Output power reaches 0.54 kW, and the torque constant of 0.35 N·m/A RMS indicates the relationship between phase current and developed torque. Electrical dynamics are shaped by a line inductance of 30.0 mH and a line resistance of 6.80 Ω; together they influence current rise time and copper losses. The back EMF is 20.9 Vrms/kRPM, and command and commutation signals are returned through a resolver, while a bayonet connector style simplifies wiring and helps prevent accidental uncoupling.
The motor’s dynamic envelope includes a rated velocity of 7500 RPM and a peak stall torque of 2.41 N·m, allowing rapid acceleration followed by sustained holding capability at standstill. A rotor inertia of 0.000212 kg·m² supports quick load reversals without excessive servo gain. The motor has an IP65 rating, so dust and water jets will not compromise internal components. There is no rear shaft extension, which reduces overall length and eliminates secondary coupling surfaces, and mating plugs are not included so the connector hardware can be matched to the installation.
