High-vacuum capability
Specified configurations are available for vacuum environments down to 1.0 × 10−8 Pa.
86 mm Vacuum Stepper Motor
Vacuum Two-Phase Stepper Motor
High-torque 86 mm vacuum stepper motor with 8.5 N·m holding torque, 5.0 A rated current and configurable vacuum, temperature and radiation options for demanding automation systems.
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
86 mm vacuum motion platform
High-torque positioning for demanding vacuum environments
A two-phase, four-wire hybrid vacuum stepper motor engineered around the 86 mm frame for stable positioning, high holding torque and application-specific environmental configurations.
Wide-temperature options
Application-specific materials and manufacturing processes support environments from −196°C to +300°C.
Radiation-resistant options
Specialized configurations are available for radiation environments up to 106 Gy.
8.5 N·m holding torque
The 86 mm platform delivers strong holding performance for demanding precision axes.
High-cleanliness engineering
Material selection and finishing processes support use in equipment with elevated cleanliness requirements.
Application-specific customization
Shaft, cabling, shock, vibration, impact and compatible gearbox requirements can be reviewed with engineering.
Engineering information
Technical data
Verified model data is organized below for electrical selection, mechanical integration and operating-point review.
86 mmFrame size
SPHY86118**Product model
8.5 N·mHolding torque
1.0 × 10−8 PaVacuum option
Model data
Model specifications
Values transcribed from the supplied 86 series technical data.
| Model | Step angle | Body length Lmax | Rated current | Phase resistance | Phase inductance | Holding torque | Rotor inertia | Weight | Recommended driver |
|---|---|---|---|---|---|---|---|---|---|
| SPHY86118** | 1.8° | 118 mm (80 mm optional) | 5.0 A | 0.62 Ω | 7.2 mH | 8.5 N·m | 3600 g·cm² | 4.7 kg | M860C |
General data
General specifications
Mechanical, insulation and loading limits from the supplied technical data.
| 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 min |
| Motor temperature rise | 80°C max (rated current, normal pressure) |
| Ambient temperature | Optional grade |
| Radial load | 220 N max (20 mm from flange face) |
| Axial load | 60 N max |
Technical drawings
Dimensions, wiring and performance
Each technical drawing is presented separately to preserve readability. Confirm the final configuration and operating point with engineering before release.
Vacuum-axis integration
Engineer a robust 86 mm vacuum motion axis
Match the motor to chamber pressure, load, speed, duty cycle, temperature, radiation level, cabling and driver conditions.
- Validate the required vacuum, temperature and cleanliness level
- Match torque and speed to the complete duty cycle
- Confirm cabling, feedthrough and driver interfaces
Application fields
Designed for demanding vacuum and scientific equipment
The 86 mm platform is suited to applications that combine strong holding torque, controlled environments and repeatable positioning.
Semiconductor equipment
Transfer, positioning and process-support axes in controlled environments.
Vacuum coating
Robust rotary and linear positioning for deposition equipment.
Research systems
Motion inside laboratory chambers and analytical instruments.
Scientific equipment
High-load precision motion for specialized test and measurement systems.
System integration
Clear product data for faster machine design
Use the verified model table and separate technical drawings for mechanical layout, harness design, driver selection and operating-point review.
Product modelSPHY86118**
Frame size86 mm
Holding torque8.5 N·m
Rated current5.0 A
Recommended driverM860C
Discuss your 86 mm vacuum motion requirement with our engineers.
Share your chamber pressure, temperature, load, speed, duty cycle, radiation level and installation requirements for configuration review.
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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