M.1300.3503 Kollmorgen
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The Kollmorgen M.1300.3503 is a servo motor from the YSM Brushless Servo Motors series and features a maximum operating speed of 4500 rpm with a peak torque of 0.48 N·m. It operates at a nominal voltage of 115 V and has a brake voltage of 24 VDC with a brake holding torque of 0.157 N·m. The motor has a net weight of 0.8 kg and an encoder resolution of 2000 P/R.
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Product Description:
The M.1300.3503 is a brushless servo motor manufactured by Kollmorgen within the YSM Brushless Servo Motors series. Designed for compact axes in pick-and-place modules, labeling heads, and small positioning stages, the unit converts command current from a digital drive into proportional shaft torque while providing position feedback through an integral optical encoder. This combination supports closed-loop motion control across general-purpose industrial automation equipment.
At stall, the motor can deliver a continuous torque of 0.17 N·m, which is the sustainable load it can oppose without overheating. During acceleration or brief load surges, the electromagnetic system raises output to a peak torque of 0.48 N·m, providing additional capacity for rapid indexing. Safe mechanical operation is limited to 4500 rpm; beyond this speed, bearing losses and back electromotive force would exceed the motor’s operating limits. A built-in incremental encoder provides a resolution of 2000 P/R, allowing the drive to close the position loop with sub-degree accuracy. The stator windings have a phase inductance of 5.5 mH, which affects current ripple and response bandwidth when the drive applies high-frequency pulse-width modulated voltage. Combined with a phase resistance of 4.6 Ω, these electrical values support stable and responsive current-loop tuning.
A holding brake is integrated for vertical or load-holding axes. Its coil operates at 0.26 A with a 24 VDC supply, and the brake clamps the shaft with 0.157 N·m of torque when motor power is removed. The overall assembly length is 108.5 mm with the brake installed, while the magnetic stack measures 70.0 mm. The rotor has a mass moment of inertia of only 0.0000039 kg·m², allowing fast reversals with moderate servo gains. The complete motor weighs 0.8 kg, which reduces the load added to moving gantries and compact positioning mechanisms. Electrical characteristics include a nominal winding voltage of 115 V, a voltage constant of 10 V/kRPM, and a sine-wave torque constant of 0.082 N·m/A, enabling connection to many low-power servo amplifiers without additional gearing.
