0.72°
Five-phase positioning
Five-phase construction with a 0.72° full step supports fine incremental motion across the series.
SP Vacuum Five-Phase Stepper Motor Series
Vacuum Five-Phase Stepper Motor
SP vacuum five-phase stepper motor series combines 0.72° step resolution with 28, 42 and 60 mm frame options. Custom HV configurations are available for operating pressures down to 1 × 10⁻⁵ Pa.
Positioning accuracy
High torsional rigidity and constant torsional backlash over the entire gearbox service life ensure consistently high performance
Compactness
High torque density thanks to high performance and short design
Low maintenance
Highest quality standards for a long service life and extended maintenance intervals
Technical data
Vacuum five-phase motion
Fine-step motion for vacuum and special environments
The SP Vacuum Five-Phase Stepper Motor Series combines a 0.72° step angle with 28, 42 and 60 mm frame options. Specify the optional HV construction when operation down to 1 × 10−5 Pa is required.
10−5 Pa
Custom HV configuration
Specify the optional HV construction for operating pressures down to 1 × 10−5 Pa.
28–60 mm
Configurable frame platform
Choose 28, 42 or 60 mm frames with single- or double-shaft variants and holding torque up to 2.10 N·m.
Engineering data
Model range and technical specifications
Select the frame size, motor length and shaft form from the models below. Vacuum service requires the optional/custom HV configuration; confirm the target pressure and operating conditions when ordering.
28 / 42 / 60 mmFrame sizes
0.72°Step angle
1 × 10−5 PaOptional HV operating pressure
Single / doubleShaft configurations
Series selection
Model specifications
| Single-shaft model | Double-shaft model | Frame size (mm) | Motor length (mm) | Rated current (A) | Resistance (Ω) | Inductance (mH) | Holding torque (N·m) | Rotor inertia (kg·cm²) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|
| SP28533-12 | SP28533-12-SZ | 28 | 33 | 1.2 | 0.65 | 0.26 | 0.05 | 0.009 | 0.12 |
| SP28551-12 | SP28551-12-SZ | 28 | 51 | 1.2 | 1.1 | 0.6 | 0.12 | 0.018 | 0.24 |
| SP42540-18 | SP42540-18-SZ | 42 | 40 | 1.8 | 0.48 | 0.46 | 0.30 | 0.055 | 0.30 |
| SP42548-18 | SP42548-18-SZ | 42 | 48 | 1.8 | 0.55 | 0.70 | 0.40 | 0.071 | 0.38 |
| SP42560-18 | SP42560-18-SZ | 42 | 60 | 1.8 | 0.64 | 0.85 | 0.50 | 0.11 | 0.49 |
| SP60556-24 | SP60556-24-SZ | 60 | 56 | 2.4 | 0.46 | 1.5 | 1.15 | 0.29 | 1.0 |
| SP60585-24 | SP60585-24-SZ | 60 | 85 | 2.4 | 0.69 | 3.0 | 2.10 | 0.54 | 1.5 |
Models ending in -SZ use a double-shaft configuration. Vacuum operation requires the optional/custom HV configuration.
Common data
Electrical, environmental and mechanical limits
| Parameter | Value | Condition |
|---|---|---|
| Step angle | 0.72° | Full step |
| Step-angle accuracy | ±0.036° | No load, full step |
| Optional HV operating pressure | Down to 1 × 10−5 Pa | Optional/custom HV configuration |
| Maximum temperature rise | 80 K | — |
| Ambient temperature | −10 to +50°C | Standard operating range |
| Relative humidity | Maximum 85% RH | Customizable |
| Insulation class | B | — |
| Insulation resistance | ≥100 MΩ | 500 VDC |
| Withstand voltage | 500 VAC for 1 min | — |
| Radial runout | ≤0.025 mm | 5 N load |
| Axial runout | ≤0.075 mm | 10 N load |
Mechanical load
Maximum mechanical load
| Frame size | Maximum radial load | Maximum axial load |
|---|---|---|
| 28 mm | 15 N | Motor self-weight (N) |
| 42 mm | 30 N | Motor self-weight (N) |
| 60 mm | 90 N | Motor self-weight (N) |
Connection data
Five-phase lead assignment
| Phase | Lead color |
|---|---|
| A | Blue |
| B | Red |
| C | Orange |
| D | Green |
| E | Black |
Engineering drawings
Dimensions, wiring and torque-speed curves
Product views
Mechanical configuration views
Vacuum motion integration
Specify the motor around the chamber conditions
The series combines five-phase 0.72° motion with 28, 42 and 60 mm frame options. For vacuum use, specify the optional HV configuration together with the frame size, motor length, shaft form, required operating pressure and application conditions.
- Optional/custom HV construction down to 1 × 10−5 Pa
- 0.72° five-phase step angle
- 28, 42 and 60 mm frame sizes
- Single-shaft and -SZ double-shaft models
Application areas
Motion platforms for controlled special environments
Semiconductor manufacturing
Vacuum transfer, positioning and auxiliary motion inside process equipment.
Aerospace and space simulation
Positioning mechanisms used in vacuum chambers and environmental simulation systems.
Optical and scientific instruments
Fine-step motion for optical positioning, analytical instruments and research equipment.
Medical and vacuum automation
Specialized positioning assemblies requiring compact five-phase control and a custom vacuum configuration.
Selection data
Confirm the operating requirements before selection
Match the frame, motor length and shaft arrangement to the mechanism, then specify the optional HV configuration for the required chamber pressure.
Frame sizes28, 42 and 60 mm
Step angle0.72°
Holding torque range0.05 to 2.10 N·m
Shaft optionsSingle shaft or -SZ double shaft
Vacuum constructionOptional/custom HV configuration
HV operating pressureDown to 1 × 10−5 Pa
Standard ambient range−10 to +50°C; maximum 85% RH
Insulation classB
Discuss your vacuum motion requirements
Share the target pressure, frame size, load, speed, shaft configuration and installation constraints for model and HV configuration support.
Contact us
Would you like to learn more about our solutions?
We would be happy to advise you—personally, competently, and tailored to your requirements.
Perfection in a new dimension
Further Information
Short delivery times available for selected product configurations.
The TP+ HIGH TORQUE enables maximum torque density and maximum torsional rigidity—ideal for demanding applications with dynamic load changes and high positioning accuracy.
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