M.1300.3505 Kollmorgen
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The Kollmorgen M.1300.3505 is part of the YSM Brushless Servo Motors series and operates with a motor voltage of 115 V and a maximum speed of 4500 rpm. This servo motor has an axial load rating of 10 kg, radial load rating of 25 kg, and features an 8-pole design. Its brake coil current is 0.31 A with a brake holding torque of 1.27 Nm.
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Product Description:
The M.1300.3505 is a brushless servo motor manufactured by Kollmorgen as part of the YSM Brushless Servo Motors series. It serves as the rotary element in closed-loop positioning systems, translating drive current into precise angular displacement for pick-and-place heads, indexing tables, or compact conveyor sections within industrial automation. Its brushless design supports controlled acceleration and repeatable positioning without the mechanical wear associated with commutator brushes. Axial and radial load ratings of 10 kg and 25 kg, respectively, protect the dual-row bearings from premature wear when pulleys or couplings impose combined forces.
This model operates from a rated phase supply of 115 V and reaches a maximum mechanical speed of 4500 rpm, allowing fast cycle times without overspeeding the magnetic stack. Its electromagnetic coupling performance is indicated by a sine torque constant of 0.24 Nm/A, while the back-EMF gradient is 29 V/krpm. These values allow the required current and voltage headroom to be calculated across the operating speed range. The stator has a winding inductance of 5.1 mH, supporting smooth current regulation during high-frequency commutation. A 24 VDC permanent-magnet brake rated at 1.27 Nm stops the shaft during a power loss, and its coil draws 0.31 A to limit demand on the control-panel power supply.
The thermal path from the windings to the housing has a resistance of 1.3 °C/W, allowing airflow to be sized for sustained operation. Copper loss at rated current is governed by a winding resistance of 1.32 ohms. The eight-pole rotor geometry, indicated by a pole count of 8, supports high torque density at moderate commutation frequencies. Electrical isolation between the windings and frame withstands 1500 VAC RMS, meeting typical inverter high-potential test requirements. The brake assembly adds 2.4 kg to the overall mass and contributes 0.000032 kg·m² of inertia, resulting in a small increase that has little effect on dynamic tuning when the servo is configured for rapid acceleration.
