Product Description:

The M-405-B-A3 is a servo motor manufactured by Kollmorgen as part of the M Goldline Servo Motors series. It is intended for use in motion-control loops where precise torque and speed tracking are required, integrating with a matching amplifier to drive automated machinery such as pick-and-place heads, index tables, or conveyor sections. The motor is well suited for automated equipment that needs stable response during repeated starts, stops, and indexing moves. Its operating profile also fits rotary axes that must maintain accuracy while load demand changes across a duty cycle.

At a stator temperature of 25 °C, the motor can maintain 14.1 N-m continuous stall torque at 25 °C while the phase conductors carry a 9.9 Arms continuous line current; these paired limits indicate its thermal steady-state output. If the machine environment reaches 40 °C, the permissible continuous stall output falls to 13.3 N-m, reflecting the temperature sensitivity of the winding package. The winding has 33.5 mH phase inductance and 1.32 Ω resistance, so current transitions are filtered and losses remain predictable. A drive rated for up to 250 Vrms maximum line voltage can operate the unit at 3.4 kW rated power and 2500 rpm rated speed. The 81.2 Vrms/krpm back-emf constant and 1.34 N-m/Arms torque constant relate applied voltage and current to mechanical output, while the four-pole rotor supports synchronous operation with standard servo amplifiers. Mounting uses a 130 mm bolt circle that centers the frame on gearboxes or machine plates.

For transient moves, the windings can accept a 28.8 Arms peak line current, producing up to 36.6 N-m peak torque before thermal limits intervene. Heat flow through the iron and copper is modeled by a 25 min thermal time constant, which is useful when planning repetitive indexing duty cycles. With a 15.5 kg mass, the motor provides a stable mounting base, and its rotor layout keeps cogging low across the 0 to 2500 rpm working band.