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KECM Series Vacuum High and Low Temperature Servo Motors - China Suppliers & Factory for Ion Beam Sputtering Process
Options
- Safe brake
- Geared multi-turn absolute encoder feedback
- 24/48/110VDC winding voltage
- Pre-assembled cables (power and feedback) ready-to-use
Ordering Information
1 Product series
KECM series servo motor
2 Winding voltage
24 = 24VDC (for 100/200/400W)
48 = 48VDC (for 400/750/1000W)
220 = 220VAC (for 100/400/750/1000W, 1800/3800W available on request)
380 = 380VAC (for 1800/3800W)
48 = 48VDC (for 400/750/1000W)
220 = 220VAC (for 100/400/750/1000W, 1800/3800W available on request)
380 = 380VAC (for 1800/3800W)
*For servo motors operated in a vacuum pressure range of 10-10000 Pa, we recommend utilizing a low-voltage (24 or 48 VDC) winding motor to eliminate the risk of breakdown.
3 Rated power
100 = 100W
200 = 200W
400 = 400W
750 = 750W
1000 = 1KW
1800 = 1.8KW
3800 = 3.8KW
200 = 200W
400 = 400W
750 = 750W
1000 = 1KW
1800 = 1.8KW
3800 = 3.8KW
4 Feedback device
Blank = resolver. Incremental feedback. To achieve accurate positioning, it is necessary to implement a homing process, as the motor position is not recorded during power-off.
AE = geared multi-turn absolute encoder. With 17-bit single-turn resolution and 12-bit multi-turn. During power-off, the motor position is recorded. No back-up battery is required.
AE = geared multi-turn absolute encoder. With 17-bit single-turn resolution and 12-bit multi-turn. During power-off, the motor position is recorded. No back-up battery is required.
5 Safe brake
Blank = without brake
B = with brake
B = with brake
6 Environmental temperature ratings
| Environmental temperature rating code | Temperature range (℃) | Vacuum class (Pa, optional) |
|---|---|---|
| NTL1 | -40~+85 | 10-3 |
| NTL2 | -40~+100 | - |
| NTL3 | -60~+100 | - |
| NTL4 | -60~+120 | - |
| L*H* | customized | customized |
* The permissible operating temperature and vacuum level of the KECM servo motor is constrained by the selected position feedback device (resolver or absolute encoder). For further details, please refer to the technical specifications table.
7 Vacuum class
Blank = Non-vacuum
V3 = Low pressure or vacuum to 10-3Pa
V3 = Low pressure or vacuum to 10-3Pa
8 Special features
Blank = No special features
SR = Salt spray resistance
SR = Salt spray resistance
- Pre-assembled cables (power and feedback) ready-to-use
Description
In actuator systems of missiles, drones, and various aerospace vehicles, the motor often needs to drive the control surface for rapid and precise deflection under high-altitude low-temperature environments, placing extremely high demands on the motor's low-temperature adaptability. The KECM series low temperature servo motor is specifically optimized for such extreme low-temperature conditions, with an operating temperature as low as -60℃. At this temperature, it maintains low viscosity and fluidity of the lubricating grease as well as high magnetic energy product of magnetic materials, ensuring rapid response of the actuator in frigid environments. Unlike general-purpose products, this low temperature servo motor features specially treated windings and insulation systems to prevent low-temperature embrittlement. It can also be optionally equipped with a mechanical multi-turn absolute encoder, providing absolute position feedback to the actuator control system and preventing loss of zero position during power loss or power-up sequences — a key safeguard for missile pre-launch self-checks. Within the actuator mechanism, the KECM series low temperature servo motor can also integrate an electromagnetic brake, used to lock the control surface in non-operating states, preventing unintended deflections caused by aerodynamic forces. Due to the confined space and weight constraints of actuators, this low temperature servo motor adopts a high torque density design, delivering greater torque within the same volume, which perfectly aligns with aerospace requirements for miniaturization. From ground-based low-temperature laboratories to real flight environments at high altitudes, the KECM series low temperature servo motor operates stably, and its low-temperature resistance, vibration resistance, and high reliability have been verified by multiple military institutions. Adopting this low temperature servo motor for actuator control can significantly enhance the survivability of flight vehicles in cold-region operations or polar missions. The emergence of this low temperature servo motor fills multiple technical gaps in domestic high-end actuator motors for harsh environments, further consolidating the leading position of the KECM series low temperature servo motor in the fields of guided weapon and UAV actuator control.
Frequently Asked Questions (FAQ)
What is the minimum operating temperature of the KECM series servo motor?
The KECM series low temperature servo motor is specially optimized for extreme environments and can operate reliably at temperatures as low as -60℃.
Why is a low-voltage winding motor recommended for vacuum applications?
For servo motors operating in a vacuum range of 10-10000 Pa, using a low-voltage winding (24 or 48 VDC) is recommended to eliminate the risk of electrical breakdown.
What are the advantages of the absolute encoder (AE) option?
The geared multi-turn absolute encoder (AE) features 17-bit single-turn and 12-bit multi-turn resolution. It records the motor position during power-off without requiring a back-up battery, preventing loss of zero position during power cycles.
Does the KECM series support electromagnetic brakes?
Yes, an optional safe brake (Option B) can be integrated to lock the control surface in non-operating states, preventing unintended deflections caused by aerodynamic forces.
Can the KECM series servo motor be customized for specific temperatures or vacuum levels?
Yes, under the environmental temperature ratings, the "L*H*" option allows for customized temperature ranges and vacuum classes based on specific application requirements.
What special protection features are available for harsh environments?
The motor can be configured with the "SR" option for salt spray resistance, making it suitable for marine or coastal applications.









