AEROTECH SM Series High-Performance Stepper Motors
SM Series High-Performance Stepper Motors
The SM series of stepper motors brings efficiency of motion to Aerotech’s line of rotary motor products. With ample torque at high velocities, the SM series is a perfect stand-in for DC brushed or brushless rotary motors in nearly any medium-accuracy motion application. With multiple offerings in frame sizes from NEMA 17 to NEMA 34, the SM series provides additional options to meet your needs.
Design Features
Industry-standard NEMA frame stepper motors
Available encoder feedback and brake options
Models to run off of North American & Asian/European line voltages
Optimized performance for use with Aerotech stages
High-performance micro-stepping up to 50,000 steps/revolution
Vacuum and cleanroom versions available
Design and Integration Flexibility
The SM series motors have been designed with optional direct encoder feedback, a holding brake, or even a viscous damper to improve the dynamic response of the rotor. These standard options allow the SM series to adapt to many common motion applications and extend their capabilities for use in a wider array of processes than a general stepper motor.

SM
Line Voltage Capable
The NEMA 23 and NEMA 34 frame size SM series motors are available in a high-voltage optimized design. This produces optimum performance at both North American and European/Asian line voltages without the need for a transformer, further streamlining the system solution.
SM Series Specifications
| SM35 | SM60-VT1 | SM60-VT2 | SM100-VT1 | SM100-VT2 | SM280-VT1 | SM280-VT2 | SM465-VT1 | SM465-VT2 | |
| NEMA Motor Frame Size | NEMA 17 | NEMA 23 | NEMA 34 | ||||||
| Stall Torque | 0.78 N·m | 1.23 N·m | 1.41 N·m | 1.85 N·m | 2.50 N·m | 4.50 N·m | 8.75 N·m | 12.0 N·m | 11.5 N·m |
| Rated Amps Per Phase | 3.0 A | 2.8 A | 0.84 A | 3.5 A | 0.99 A | 7.1 A | 3.04 A | 7.1 A | 2.94 A |
| Maximum Recommended Motor Voltage(1) | 35 V | 160 V | 35 V | 160 V | 48 V | 160 V | 48 V | 160 V | |
| mechanical(Rotor Inertia) | 1.02-5 kg·m 2 | 3.00-5 kg·m 2 | 4.80-5 kg·m 2 | 5.21-5 kg·m 2 | 1.41E-4 kg·m 2 | 2.70-4 kg·m 2 | 4.02-4 kg·m 2 | ||
| Full Step Angle | 1.8° | ||||||||
| Accuracy | ±0.09° | ||||||||
| Maximum Radial Load | 2.9 kg | 7.7 kg | 22.5 kg | ||||||
| Maximum Thrust Load | 1.0 kg | 1.5 kg | 6.1 kg | ||||||
| Weight | 0.50 kg | 0.70 kg | 1.0 kg | 1.2 kg | 2.3 kg | 3.8 kg | 5.4 kg | 5.3 kg | |