The selection of high and low temperature servo motors requires focusing on the following core parameters:
Performance Parameters
1、Torque and Speed
Clarify the torque attenuation rate under extreme temperatures (e.g., torque reduction ≤10% at 120℃).
The speed adjustment range must meet low-temperature anti-slip requirements (e.g., polar equipment requires low-speed high torque).
2、Dynamic Response
The inertia ratio is recommended to be ≤10:1 (load inertia to rotor inertia ratio) to ensure rapid response during low-temperature startup.
Acceleration requirements (e.g., semiconductor manipulators require acceleration from 0 to 3000 rpm in <30 ms).
3、Precision Requirements
Positioning accuracy must account for thermal expansion effects (e.g., ±0.001 mm requires thermal compensation algorithms).
Encoder type selection: Use resolvers for low temperatures (anti-condensation) and optical encoders for high temperatures (temperature resistance ≥120℃).
4、Environment and Cost
Temperature Range: Specify stable operation requirements, e.g., from a minimum of -40℃ to a maximum of 120℃.
Initial Cost: Imported brands (e.g., Siemens, Yaskawa) are 30%~50% more expensive than domestic brands.
Maintenance Cost: Long-life designs can reduce replacement frequency (e.g., SYD series maintenance cycle of 20,000 hours).
5、Installation and Debugging
Load Inertia: Must be converted to the full load inertia on the motor shaft to avoid system adjustment difficulties.
Simulation Services: Suppliers should provide thermal simulation or dynamic load analysis reports.
6、Special Requirements
Brake Configuration: Brakes must be equipped to ensure safe stopping when there is a tendency for rotation.
Urgent Requirements: Custom models require a development lead time of 3-6 months.
Ctrl-Motor has been engaged in the R&D, production and sales of vacuum motors, high and low temperature motors-related drivers, stepper motors, servo motors, and reducers for 11 years. The high and low temperature motors can be adapted to any extreme conditions from -196℃ to 300℃, and the vacuum degree can reach 10-7pa, we can provide 10^7Gy radiation protection and salt spray protection products.