Product Description:

The H-344-H-0212 is a brushless servo motor produced by Kollmorgen within the Silverline Brushless Servo Drives series. It converts electrical power into controlled rotational motion for positioning and velocity control tasks in industrial automation cells, pick-and-place modules, and packaging lines. Designed to be paired with an electronic drive, the unit supplies continuous torque over a broad speed range and minimizes maintenance by eliminating brushes. It also supports closed-loop regulation through its shaft-mounted feedback device and fits easily into gearhead or pulley assemblies because of its compact cylindrical frame.

During steady operation, the motor delivers 701 W of mechanical output while drawing 11.7 A DC of line current. Copper losses are moderated by a winding resistance of 0.360 ohms, and an inductance of 2.04 mH shapes the current-loop bandwidth required from the servo amplifier. A back electromotive force constant of 21.3 V peak/krpm indicates the voltage needed to reach the rated speed of 4,050 rpm and corresponds to a torque sensitivity of 0.179 N-m/A DC. At that speed, the shaft can produce a rated torque of 1.65 N-m and maintain 2.10 N-m at stall while remaining within the 250 Vrms insulation limit. Dynamic accuracy is aided by the short 0.91 ms mechanical time constant, enabling rapid acceleration sequences for indexing machinery.

The motor’s short-duration torque capacity reaches 5.26 N-m, supported by a surge current limit of 32.6 A DC for rapid indexing moves. Rotor inertia remains at 0.000092 kg-m², allowing tight servo loops without inducing overshoot on light loads. Heat generated during repeated peaks is removed through a thermal path rated at 1.6 °C/W, keeping winding temperatures within permissible limits. Including its encoder, the assembly weighs 2.65 kg, providing a favorable power-to-mass ratio when axis payload is critical.