**Introduction**
A leading Switzerland equipment manufacturer with over 20 years of experience requires a custom frameless torque motor to meet its specific needs.
**Challenge**
The frameless motor must meet **CE, RoHS, and REACH certifications** while providing precise performance in torque, power, stability, and other essential parameters. Comprehensive test performance reports are also necessary to assess the final quality.
**Solution**
To address these challenges, a **customized frameless torque motor** was developed based on the **U85 series standard motor**. The design was specifically tailored to meet the performance and dimensional requirements of the equipment, ensuring optimal functionality.
Main Parameters Comparison:
| Main Parameters | Before Customization | After Customization |
| Voltage (VDC) | 48V DC | 28V DC |
| Rated output (W) | 380.42 | 108.99 |
| Rated torque (Nm) | 1.21 | 0.8 |
| Instant Max Torque (Nm) | 3.17 | 2.5 |
| Rated current (Arms) | 8 | 4.7 |
| Instant Max Current (Arms) | 25 | 20 |
| Rated speed (rpm) | 3000 | 1300 |
| Max Speed (rpm) | 6000 | 2000 |
| Torque constant (Nm/Amms) | 0.15 | 0.17 |
| Pole-pairs number (2P) | 10 | 10 |
**Result**
The final solution provided high performance and complete compliance with the required certifications. The customer expressed high satisfaction with the product quality and service, resulting in a successful integration into their new photographic equipment.
