QSY090B-030-HP0-UN Bosch Rexroth Indramat
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The Bosch Rexroth Indramat QSY090B-030-HP0-UN is a synchronous servo motor from the QSY Synchronous Servo Motors series. It provides a rated power output of 2.7 kW and operates at a rated speed of 3000 rpm with a rated torque of 8.5 Nm. The motor features a rated voltage of 330 V and can reach a maximum current of 42.0 A for 200 milliseconds.
Internal Product Review
The QSY090B-030-HP0-UN is a Bosch Rexroth Indramat synchronous servo motor with a rated power output of 2.7 kW and a rated speed of 3000 rpm. Rated torque of 8.5 Nm and peak torque of 43.5 Nm support impressive dynamic response in demanding motion applications.
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Product Description:
The QSY090B-030-HP0-UN is a rotary synchronous servo motor produced by Bosch Rexroth Indramat in the QSY Synchronous Servo Motors series. Designed for closed-loop motion tasks, the unit converts electrical energy into controlled shaft rotation so machine tools, packaging lines, and assembly stations can follow programmed position and velocity profiles with low error. Its electromagnetic design uses four pole pairs and a permanent-magnet rotor, providing high torque density while keeping the frame compact enough for direct integration into confined mechanical spaces.
The motor has a rated speed of 3000 rpm, at which it supplies a continuous torque of 8.5 Nm. At this operating point, the mechanical power is 2.7 kW, which is suitable for medium-inertia axes such as indexing tables or feed drives. To maintain this output, the stator windings carry a rated current of 6.6 A while the drive operates from a DC bus stabilized at approximately 330 V. These electrical values help with selecting a compatible drive controller and sizing its output stage and regeneration path. A thermal reference of 100 K indicates the permitted temperature rise before output derating is required, helping protect the windings during continuous operation.
During transient events, the motor can deliver a maximum shaft torque of 43.5 Nm for up to 200 ms while drawing a peak current of 42.0 A. This short-duration reserve supports rapid acceleration and helps the drive correct sudden load disturbances without requiring the motor to sustain peak output continuously. When the rotor is stationary, the magnetic circuit provides a stall torque of 13.0 Nm at a stall current of 10.1 A, which supports applications such as vertical axes that must hold a load without motion. The four-pole-pair arrangement limits cogging and keeps the electrical frequency within the operating range of typical compatible inverters. Proper current limiting is required so transient and stationary loading remain within the motor’s allowable thermal limits.
