Closed-loop precision
Closed-loop position monitoring supports controlled motion across dynamic operating conditions.
SPAI42RC 42 mm Integrated Closed-loop Stepper Motor
All-in-One Integrated Closed-loop Stepper Motor
The SPAI42RC is a 42 mm integrated closed-loop stepper motor with 12–24 VDC supply, up to 2.2 Apeak output and four motor configurations.
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
Built for compact precision
Closed-loop motion control in a 42 mm integrated package
The AI42RC is a 42 mm integrated closed-loop stepper motor that combines the motor and drive electronics in one compact package, reducing external component count and installation space.
Compact integration
The 42 mm motor, drive and controller share one housing, simplifying cabinet architecture and reducing component count.
Wide logic-level support
Logic input levels from 3.3 V to 24 V support integration with a range of machine-control systems.
Engineering information
Technical data
Electrical ratings, motor options and cooling-interface dimensions for the AI42RC integrated closed-loop stepper motor.
42 mmFrame size
12–24 VDCSupply voltage
2.2 ApeakMaximum output current
3.3–24 VLogic input voltage
Electrical
Electrical operating parameters
| Parameter | Unit | Minimum | Typical | Maximum |
|---|---|---|---|---|
| Continuous output current | Apeak | — | — | 2.2 |
| Supply voltage | V | 12 | 24 | 24 |
| Logic input voltage | V | 3.3 | 5 / 24 | 24 |
| Logic input current | mA | 5 | — | 10 |
Motor options
AI42RC model selection
Four motor configurations provide holding torque options from 0.20 to 0.67 N·m.
| Model | Step angle | Lead wires | Current (A) | Holding torque (N·m) | Body length L (mm) |
|---|---|---|---|---|---|
| HD-42H033H-0504 | 1.8° | 4 | 0.42 | 0.20 | 33 |
| HD-42H033H-1334 | 1.8° | 4 | 1.33 | 0.23 | 33 |
| HD-42H047H-1504 | 1.8° | 4 | 1.50 | 0.55 | 47 |
| HD-42H057H-1504 | 1.8° | 4 | 1.50 | 0.67 | 57 |
Mechanical integration
Cooling-interface dimensions
Integrated architecture
More motion capability. Less cabinet complexity.
The integrated design reduces the number of separate components, shortens field wiring and gives designers a clean platform for compact precision axes.
- Motor, drive electronics and closed-loop control in one unit
- Compact front interface for power and logic I/O
- Four motor lengths for compact machine-axis design
Application fields
Designed for precision equipment with limited installation space
The compact integrated format is suited to automation systems that need accurate positioning, simplified wiring and limited installation space.
Laboratory automation
Compact sample handling, dispensing and analytical instruments.
Precision inspection
Camera positioning, metrology stages and optical adjustment axes.
Semiconductor handling
Space-constrained transfer, alignment and auxiliary motion systems.
Compact robotics
End effectors, lightweight axes and distributed automation modules.
System integration
Clear interfaces for faster machine design
Use the product drawings and electrical definitions as the basis for mechanical layout, harness design and control-signal planning.
Power supply12–24 VDC
Logic input levels3.3 V / 5 V / 24 V
Logic input current5–10 mA
Step angle1.8°
Mechanical format42 mm integrated motor package
Discuss your compact motion requirement with our engineers.
Share your voltage, load, speed, control-signal and installation requirements for product 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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