Hybrid stepper motor
ElectroCraft TorquePower TPE, TPP and sealed TP hybrid stepper motor
1.8° hybrid stepper motors from NEMA 11 to NEMA 42: TPE (0.16 to 2.08 Nm holding torque), TPP34 (8.4 Nm) and sealed TP models up to 14.8 Nm (TP42), with bipolar and unipolar windings and encoder options.
Key specifications
| Holding torque | 0.16–14.83 Nm |
|---|---|
| NEMA sizes | 11, 17, 23, 34, 42 |
| Step angle | 1.8 ° |
| Windings | bipolar and unipolar (TPE, TPP) |
| Sealed | TP series sealed |
Summarised in our own words from ElectroCraft, Inc.'s published data; series maxima, individual models vary. Last checked 2026-10-30. Source 1
Notes on this data
Holding torques converted from oz-in. Current and voltage per model not on the overview page.
Specify Motion is not affiliated with ElectroCraft, Inc.. ElectroCraft and TorquePower TPE, TPP and sealed TP 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 an ElectroCraft 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 | TorquePower TPE, TPP and sealed TP | NEMA 42 High Torque (M110STH) |
|---|---|---|
| Holding torque | 14.83 Nm | 33 Nm meets or exceeds |
| Current | — | 8 A |
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 | TorquePower TPE, TPP and sealed TP | Leadshine CM Series (2-phase) |
|---|---|---|
| Holding torque | 14.83 Nm | 45 Nm meets or exceeds |
| Current | — | 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 ElectroCraft TorquePower TPE, TPP and sealed TP
Send these with your enquiry and an engineer can confirm the right TorquePower TPE, TPP and sealed TP 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
ElectroCraft TorquePower TPE, TPP and sealed TP: frequently asked questions
What is the ElectroCraft TorquePower TPE, TPP and sealed TP?
1.8° hybrid stepper motors from NEMA 11 to NEMA 42: TPE (0.16 to 2.08 Nm holding torque), TPP34 (8.4 Nm) and sealed TP models up to 14.8 Nm (TP42), with bipolar and unipolar windings and encoder options. Published series figures include holding torque 0.16 Nm, holding torque 14.83 Nm, step angle 1.8 °. It is made by ElectroCraft, Inc.; Specify Motion can help source it or propose an equivalent.
Who makes the ElectroCraft TorquePower TPE, TPP and sealed TP?
The ElectroCraft TorquePower TPE, TPP and sealed TP is made by ElectroCraft (ElectroCraft, Inc.) and is listed here for engineers comparing options. Specify Motion is not affiliated with ElectroCraft, Inc.; brand names are used only to identify the product.
What is the holding torque of the ElectroCraft TorquePower TPE, TPP and sealed TP?
The published series minimum holding torque is 0.16 Nm. Individual models and sizes in the TorquePower TPE, TPP and sealed TP 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 ElectroCraft TorquePower TPE, TPP and sealed TP?
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
Spec builder
Specify what you need instead of TorquePower TPE, TPP and sealed TP
Select every part you need, answer the questions an applications engineer would ask, and see your summary before we ask for any details.
- 1Products
- 2Performance
- 3Environment
- 4Volumes
- 5Your spec
Engineer support
Let our experienced engineers do the hard work for you
Tell us how you use the ElectroCraft TorquePower TPE, TPP and sealed TP: the load, speed, duty and environment. Our engineers will confirm whether it is still the right part, find it for you, or propose an alternative that fits better.
- Reviewed by an engineer, not an autoresponder
- Like-for-like and better-fit alternatives
- Standard, modified and custom options
Prefer to configure it? Use the spec builder.