Choosing the right motor for a servo stepper motion control axis often means juggling torque, feedback, and cabinet space. The TSM34Q-6AG from Applied Motion Products takes a different route: it fuses a NEMA 34 step motor and a servo drive into one integrated package, so you don't need to mount a separate drive or deal with long motor-to-drive cables. Instead, you get closed-loop control in a single motor body.
Quick verdict
At USD 150.00, this listing is for a used TSM34Q-6AG NEMA 34 StepSERVO integrated motor with Q programming and Modbus RTU. It combines space vector current control, peak torque for acceleration, and a 20,000-count encoder for closed-loop feedback. The drive accepts an external DC supply from 24 to 70 VDC, making it a flexible fit for existing 24 V or 48 V control circuits.
Who it suits
This motor is a strong candidate for builders or maintenance teams who already have a DC power supply in the cabinet and want stand-alone motion sequences. Q programming supports standalone operation, while the RS-232 port handles programming and communications. If your PLC or HMI speaks Modbus RTU, the motor can integrate without extra protocol converters.
What stands out from the listed details
- StepSERVO technology with space vector current control for smoother torque delivery
- 20,000-count encoder for closed-loop operation
- Q programming for stand-alone control and RS-232 for setup
- Modbus RTU for PLC/HMI communication
- NEMA 34 frame size
- 24-70 VDC input, with 24 V and 48 V nominal ratings listed
TSM34Q-6AG NEMA 34 Step Servo Integrated Motor w/ Q Programming and Modbus RTU

This integrated motor is a drive+motor unit, meaning the servo drive is mounted at the rear of the motor. One concrete reason to choose it is the closed-loop design: the high-resolution encoder helps maintain position without the extra drive enclosure. One limitation to weigh is the used condition and the need to supply external DC power-the drive does not include an onboard power supply. You'll also work through the RS-232 port for programming, so your setup should include that connection.
Meaningful trade-offs
The main trade-off is the used condition and the requirement for an external 24-70 VDC supply. If you don't already have a DC power source in your machine, you'll need to add one before this motor can run. On the other side, the integrated form factor saves panel space and simplifies the drive-to-motor wiring compared to a separate servo drive. The Q programming mode is a good match for standalone tasks, but it does mean you'll need to learn that environment rather than relying only on step/direction signals.
Bottom line
For a NEMA 34 axis that needs higher acceleration, better efficiency, and closed-loop feedback without a separate servo drive, the TSM34Q-6AG at USD 150.00 is a practical, compact option. Budget for the external DC supply and a little time with the Q programming workflow, and you get a credible integrated step servo for your motion control project.