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H-348-H-0802 Kollmorgen

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Internal Product Review

The H-348-H-0802 is a Kollmorgen Silverline brushless servo drive with 821 W continuous power and 1850 RPM rated speed. Continuous stall torque of 5.26 N-m and peak torque of 14.21 N-m give motion axes a very capable performance margin under changing loads. A 1000 LPR encoder supports clean feedback, making the H-348-H-0802 a strong choice for precise servo applications.

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Product Description:

The H-348-H-0802 is a brushless servo motor produced by Kollmorgen as part of the Silverline Brushless Servo Drives series. It integrates into industrial automation cells that require accurate speed and position control, coupling directly with matched electronic drives to deliver regulated torque to conveyor sections, indexing tables, or coordinated robot joints. A factory-mounted optical encoder provides 1,000 lines per revolution of feedback, allowing a motion controller to close velocity or position loops with minimal interpolation error. The motor has an overall length of 9.99 inches, allowing installation inside compact mechanical frames without exceeding the available mounting depth.

Back electromotive force is rated at 54.3 V peak/krpm, indicating the generated voltage associated with shaft speed and influencing drive behavior during regenerative operation. The winding can carry 11.5 A DC continuously, resulting in a continuous power output of 821 W when the shaft is loaded. Under locked-rotor conditions, the motor generates 5.26 N·m of continuous stall torque, while its magnetic structure supports transient torque demands up to 14.21 N·m. These peak demands require a momentary phase current of 34.5 A DC, which the drive must supply without triggering an overcurrent trip. The line inductance is 4.25 mH, and the line resistance is 0.582 ohm. These values affect the electrical time constant, current-loop response, and copper losses during operation. A torque constant of 0.457 N·m/A DC provides a direct relationship between commanded current and produced torque for use by the control algorithm.

Nominal operation occurs at 1,850 rpm, where the shaft can deliver a rated torque of 4.24 N·m without exceeding the temperature limits of the stator insulation. The rotor inertia of 0.000266 kg·m² supports fast acceleration profiles while providing load damping for stable servo response. Total mass with the encoder installed is 6.32 kg, so the mounting hardware must support the motor and withstand reaction forces during rapid reversals. The combination of moderate rotor inertia and encoder feedback allows the connected drive to regulate motion during acceleration, steady operation, and deceleration.

Back Emf
54.3 Vpk/kRPM
Continuous Current
11.5 ADC
Continuous Power
821 W
Continuous Stall Torque
5.26 N-m
Encoder Resolution
1000 LPR
Line Inductance
4.25 mH
Line Resistance
0.582 ohm
Overall Length
9.99 in
Peak Current
34.5 ADC
Peak Torque
14.21 N-m
Rated Speed
1850 RPM
Rated Torque
4.24 N-m
Rotor Inertia
0.000266 kg-m^2
Torque Constant
0.457 N-m/ADC
Weight With Encoder
6.32 kg

Frequently Asked Questions about H-348-H-0802:

Q: What is the continuous stall torque rating of the H-348-H-0802 servo motor?

A: The H-348-H-0802 servo motor provides a continuous stall torque of 5.26 N-m, ensuring stable operation even under demanding load conditions.

Q: What peak torque does the H-348-H-0802 servo motor achieve?

A: This model is capable of producing a peak torque of 14.21 N-m for short bursts.

Q: What is the rated speed of the Kollmorgen H-348-H-0802 servo motor?

A: The rated speed for the H-348-H-0802 is 1850 RPM during standard operation.

Q: What encoder resolution is available on the H-348-H-0802?

A: This servo motor includes an encoder with a resolution of 1000 lines per revolution (LPR).

Q: What is the continuous current capability of the H-348-H-0802 servo motor?

A: The H-348-H-0802 servo motor is designed to provide a continuous current of 11.5 ADC during extended use.

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