Hybrid stepper motor
Nanotec ST / SC hybrid stepper motors
Two-phase hybrid steppers from NEMA 6 (14 mm) to NEMA 42 (110 mm) with 1.8° or 0.9° steps, from 0.0062 Nm up to 25 Nm holding torque (ST11018) and up to 8 A per winding.
Key specifications
| Frame sizes | 14–110 |
|---|---|
| Current (max) | 8 A |
| Holding torque | 0.006–25 Nm |
| NEMA sizes | 6, 8, 11, 14, 17, 23, 24, 34, 42 |
| Step angle | 1.8 or 0.9 |
Summarised in our own words from Nanotec Electronic GmbH's published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1
Notes on this data
Page title says 'up to 13.5 Nm' while the ST11018 listing gives up to 2,500 Ncm; confirm before publishing the maximum.
Specify Motion is not affiliated with Nanotec Electronic GmbH. Nanotec and ST / SC hybrid stepper motors are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Nanotec part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
110 mm 2-phase hybrid stepper, 11-33 Nm, for high-torque industrial and CNC axes; pairs with high-voltage AC stepper drives.
| Published maximum | ST / SC hybrid stepper motors | NEMA 42 High Torque (M110STH) |
|---|---|---|
| Holding torque | 25 Nm | 33 Nm meets or exceeds |
| Current | 8 A | 8 A meets or exceeds |
Leadshine's current 2-phase open-loop hybrid stepper range from 20 mm to 130 mm frames, with encoder, brake, IP65 and gearbox variants.
| Published maximum | ST / SC hybrid stepper motors | Leadshine CM Series (2-phase) |
|---|---|---|
| Holding torque | 25 Nm | 45 Nm meets or exceeds |
| Current | 8 A | 7 A |
0.72 degree 5-phase hybrid steppers in 28, 42 and 60 mm frames, matched to DM5 5-phase drives for finer native resolution.
View series →Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
What a hybrid stepper motor is
A hybrid stepper motor moves in fixed angular steps, typically 1.8° or 200 full steps per revolution, as a drive switches current through its windings in sequence. It combines a permanent-magnet rotor with toothed iron stator and rotor sections, giving high holding torque and fine resolution. With a microstepping drive, each full step is split into smaller steps for smoother motion. Steppers usually run open loop, so position is known by counting steps rather than measured.
When engineers choose a hybrid stepper motor
Choose a hybrid stepper for low-cost, simple positioning at low to moderate speed, such as indexing, dosing, small axes and instruments. It holds position strongly at standstill and needs no tuning. The trade-offs are falling torque at speed, resonance and possible lost steps if overloaded. Where speed is high, loads vary or a missed position would cause a fault, a closed-loop stepper or servo is safer.
How to specify the Nanotec ST / SC hybrid stepper motors
Send these with your enquiry and an engineer can confirm the right ST / SC hybrid stepper motors variant or an equivalent:
- Holding torque (Nm)
- Torque needed at operating speed (Nm at rpm)
- Frame size (NEMA or mm)
- Step angle (°)
- Phase current and inductance (A, mH)
- Drive voltage (V)
- Shaft, encoder and IP options
Common mistakes to avoid
- Sizing on holding torque instead of the pull-out curve
- Driving with too low a supply voltage, losing high-speed torque
- Leaving out torque margin, typically 30% to 50%
- Ignoring resonance in the mid-speed range
Nanotec ST / SC hybrid stepper motors: frequently asked questions
What is the Nanotec ST / SC hybrid stepper motors?
Two-phase hybrid steppers from NEMA 6 (14 mm) to NEMA 42 (110 mm) with 1.8° or 0.9° steps, from 0.0062 Nm up to 25 Nm holding torque (ST11018) and up to 8 A per winding. Published series figures include current 8 A, holding torque 0.006 Nm, holding torque 25 Nm. It is made by Nanotec Electronic GmbH; Specify Motion can help source it or propose an equivalent.
Who makes the Nanotec ST / SC hybrid stepper motors?
The Nanotec ST / SC hybrid stepper motors is made by Nanotec (Nanotec Electronic GmbH) and is listed here for engineers comparing options. Specify Motion is not affiliated with Nanotec Electronic GmbH; brand names are used only to identify the product.
What is the current of the Nanotec ST / SC hybrid stepper motors?
The published series maximum current is 8 A. Individual models and sizes in the ST / SC hybrid stepper motors range vary, so check the exact variant against your duty cycle, mounting and environment, or ask our engineers to confirm the right size for you.
Is there an alternative to the Nanotec ST / SC hybrid stepper motors?
Yes. On published figures, NEMA 42 High Torque (M110STH) and Leadshine CM Series (2-phase) are the closest match from our supply network. An engineer confirms the fit against your application before recommending anything.
Why do stepper motors lose torque at high speed?
Winding inductance limits how fast current can rise each step. As speed increases there is less time per step, so current and torque fall. A higher drive voltage raises current faster and extends the torque curve. Always size from the pull-out torque curve at your drive voltage.
Does microstepping increase accuracy?
Microstepping makes motion smoother and gives finer resolution, but accuracy is not improved in proportion. Each microstep produces only a small torque increment, so load torque can shift the actual position. Accuracy is mostly set by the motor's step accuracy and the load.
Further reading: How to select a stepper motor · Servo vs stepper · Servo and stepper motors
Other hybrid stepper motor series
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