42 mm frame
The compact square flange and 48 mm standard body length simplify integration into space-constrained vacuum assemblies.
42 mm Vacuum Stepper Motor
Vacuum Two-Phase Stepper Motor
Compact 42 mm vacuum stepper motor with a 48 mm standard body, optional 40 mm body, 1.0 A current and 0.48 N·m torque for precision vacuum axes.
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
42 mm vacuum motion platform
Compact, dependable motion for vacuum equipment
A 42 mm two-phase, four-wire vacuum stepper motor for precise positioning in semiconductor, coating, analytical and research equipment, with application-specific environmental grades available.
Stable positioning
A 1.8° step angle and 0.48 N·m holding torque support repeatable low-speed motion.
Vacuum-oriented construction
Material, lead and process options can be selected for the target vacuum and temperature grade.
Four-wire bipolar interface
The two-phase connection is straightforward to commission with the recommended DM422S driver.
Mechanical flexibility
An optional 40 mm body-length configuration is available for compact, application-specific mechanical requirements.
Engineering-ready data
Real HTML specification tables, a clear dimension drawing, wiring diagram and reference curve support system design.
Engineering information
Technical data
Verified model-specific ratings are organised below for product selection, mechanical layout and driver matching.
SPHY4248**Model
0.48 N·mHolding torque
1.0 ARated current
DM422SRecommended driver
Engineering data
Model specifications
| Model | Step angle | Body length | Rated current | Phase resistance | Phase inductance | Holding torque | Rotor inertia | Weight | Recommended driver |
|---|---|---|---|---|---|---|---|---|---|
| SPHY4248** | 1.8° | 48 mm (40 mm optional) | 1.0 A | 5.4 Ω | 13 mH | 0.48 N·m | 77 g·cm² | 0.5 kg | DM422S |
Engineering data
General specifications
| Specification | Value |
|---|---|
| Step angle | 1.8° |
| Radial clearance | 0.025 mm (450 g load) |
| Axial clearance | 0.075 mm (920 g load) |
| Resistance accuracy | ±5% |
| Inductance accuracy | ±10% |
| Insulation resistance | 100 MΩ |
| Insulation class | Grade B |
| Dielectric strength | 500 VAC, 50 Hz, 1 mA, 1 minute |
| Motor temperature rise | 80°C max |
| Ambient temperature | Optional grade |
| Radial load | 22 N max (20 mm from flange face) |
| Axial load | 10 N max |
Drawings and performance data
Confirm the final operating point, vacuum grade, temperature grade, lead specification and shaft configuration with Spotlight Motor engineering support.
System integration
Build a dependable 42 mm vacuum motion axis
Match the motor to the complete operating profile, including chamber pressure, load, speed, duty cycle, cabling, feedthrough and thermal conditions.
- Validate the target vacuum and material requirements
- Match torque and speed to the complete working cycle
- Plan the driver, cable and chamber feedthrough interfaces
Application fields
Designed for precision vacuum automation
A compact motor platform for equipment that combines controlled environments with repeatable positioning.
Process equipment
Transfer, alignment and auxiliary motion inside vacuum process systems.
Deposition systems
Positioning axes for coating, evaporation and material-processing equipment.
Research instruments
Motion inside laboratory chambers, test systems and analytical platforms.
Precision stages
Compact rotary and linear assemblies requiring repeatable stepper motion.
System data
Clear inputs for faster machine design
Use the verified data and technical drawings as the basis for mechanical layout, cable planning and driver selection.
ModelSPHY4248**
Frame size42 mm
Body length48 mm (40 mm optional)
Step angle1.8°
Rated current1.0 A
Recommended driverDM422S
Discuss your 42 mm vacuum stepper motor requirement with our engineers.
Share the vacuum level, temperature, load, speed, duty cycle, shaft and cable requirements for model selection and integration 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.
alpha Advanced Line gearboxes with increased durability and food-grade lubrication available.
The TP+ for coordinated pinion-rack systems for medium to high requirements. Typical areas of application in wood, plastic, and composite processing, in machining centers, or in automation.
With cynapse® and smart services, you can unleash the full potential of your drive system: sensor data is processed, visualized, and analyzed intelligently. Find out how the combination of gearboxes with cynapse® and our Smart Services can make your digital production faster, safer, and more efficient.
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