Product Description:

The H-344-H-0221 is a permanent-magnet brushless servo motor produced by Kollmorgen for the Silverline Brushless Servo Drives series. As a matched motor for the company’s servo amplifiers, it converts high-frequency drive currents into accurate shaft motion for positioning and velocity loops in automated machinery. This model is intended for industrial automation tasks such as gantry stages, feeders, and pick-and-place modules where repeatable torque delivery and compact size are required.

The motor delivers a continuous shaft output of 701 W, sustained when the windings draw 11.7 ADC from the drive. Under these steady conditions it produces 2.10 N-m of stall torque, while rated running torque reaches 1.65 N-m at the nominal speed. The speed rating of 4050 RPM aligns with the rotor’s three pole pairs and a torque sensitivity of 0.179 N-m per ampere, giving predictable speed–current relationships. Back electromotive force is 21.3 V peak per krpm, so at full speed the drive must accommodate approximately 86 V of generated voltage. The winding insulation tolerates up to 250 Vrms line-to-line, allowing ample margin for overshoot and regenerative events.

For rapid indexing the motor can reach 5.26 N-m of peak torque, a value supported by the low copper impedance of 0.360 ohms and the leakage inductance of 2.04 mH, which limit current rise times without excessive losses. The slender rotor carries only 0.000092 kg·m² of inertia, so acceleration to set speed occurs quickly with minimal drive effort. Heat generated in transient duty is transferred through a thermal path rated at 1.6 °C/W, and the 16.2-minute thermal time constant provides adequate soak time before winding temperature approaches limits. These electrical and thermal characteristics let the Silverline motor maintain accurate position control during demanding cycle profiles without external cooling accessories.