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This series of intelligent electric valve actuators integrates a highly integrated intelligent control module, robust transmission structure and multiple safety protection designs, with a torque range of 50–1000N·m, to deliver reliable, precise valve control for diverse industrial business scenarios. It supports multiple control modes and power supply options, with factory-preset full travel time from 9s to 100s, fully adapting to complex on-site working conditions and reducing on-site commissioning costs for industrial buyers.

The actuator adopts an integral aluminum alloy die-casting box, H-class asynchronous motor, high-precision alloy gears with multiple heat treatment, and high-strength copper alloy worm gear. The integrated output shaft eliminates adapter clearance, ensuring high precision and strength. This robust design delivers long service life, reduces unplanned downtime, and eliminates the need for regular refueling or inspection, cutting long-term operation and maintenance costs for business users.
It supports AC220V, AC380V, DC24V, DC220V power supply, with customizable special voltage, and is compatible with switching signal, 4-20mA current signal, 0-10VDC voltage signal control. This wide compatibility allows direct integration with existing industrial control systems, no additional transformation required, reducing procurement and engineering modification costs for system integrators and end-users.
All models are equipped with electronic and mechanical dual limit devices to prevent overtravel, and a worm gear structure with self-locking function, with IP67 protection grade. This design ensures safe and stable operation in harsh environments, avoids equipment failure caused by overtravel or reverse impact, and reduces production loss caused by unexpected shutdowns.
The built-in high-integration intelligent control module supports digital setting, digital tuning, high-precision control and self-diagnosis, with optional external locator. This intelligent design simplifies on-site commissioning, reduces labor costs for installation and debugging, and realizes accurate flow control to improve production efficiency for industrial users.
Parameter | Specification Details |
Model Series | KST Smart Type Electric Actuator |
Output Torque | 50–1000N·m |
Rotation Angle | 0~90° |
Full Travel Time | 9s/13s/15s/30s/50s/100s (factory preset) |
Power Supply | AC220V, AC380V, DC24V, DC220V (customizable special voltage) |
Protection Grade | IP67 |
Ambient Temperature | -25℃~60℃ |
Control Modes | ON/OFF switch, 4-20mA, 0-10VDC |
Electrical Interface | M18×1.5 waterproof cable connector |
Execution Standard | JB/T 8219-2016 |
Installation | 360° arbitrary angle installation |
The smart type electric actuator converts the rotational power of the H-class asynchronous motor into low-speed, high-torque rotary motion of the output shaft through the worm gear transmission mechanism. The integrated intelligent control module receives the control signal from the central control system, drives the motor to run, and realizes 0~90° precise rotation of the output shaft to drive the opening and closing or adjustment of the valve. The dual limit device automatically cuts off the power supply when the stroke reaches the upper and lower limits to prevent overtravel, and the self-locking worm gear structure prevents reverse rotation caused by medium impact, ensuring stable valve position and reliable operation.
This series of industrial electric rotary actuators is widely used in business industries including: Water Treatment & Sewage Disposal, Petrochemical & Oil & Gas Processing, Thermal Power Generation, HVAC & Building Automation, Chemical Processing, Metallurgy & Mining, and Pulp & Paper Manufacturing. It is suitable for controlling butterfly valves, ball valves, plug valves and other rotary valves in industrial pipeline systems.
Damp heater, external positioner, explosion-proof components, remote control module, signal feedback unit
We provide comprehensive OEM/ODM services for business partners, including customizable voltage and control modes, branding and labeling customization, customized torque and travel time, packaging customization, and full technical documentation support, to meet your personalized project and brand needs.
Yes, our actuators support 360° arbitrary angle installation, with waterproof and rust-proof design, no need for refueling or regular inspection, fully adapting to complex on-site layout and installation requirements.
This series supports switching signal, 4-20mA current signal, 0-10VDC voltage signal, with multiple function types including ON/OFF type, regulating type, and non-invasive intelligent type, customizable to meet your on-site control requirements.
This series of intelligent electric valve actuators integrates a highly integrated intelligent control module, robust transmission structure and multiple safety protection designs, with a torque range of 50–1000N·m, to deliver reliable, precise valve control for diverse industrial business scenarios. It supports multiple control modes and power supply options, with factory-preset full travel time from 9s to 100s, fully adapting to complex on-site working conditions and reducing on-site commissioning costs for industrial buyers.

The actuator adopts an integral aluminum alloy die-casting box, H-class asynchronous motor, high-precision alloy gears with multiple heat treatment, and high-strength copper alloy worm gear. The integrated output shaft eliminates adapter clearance, ensuring high precision and strength. This robust design delivers long service life, reduces unplanned downtime, and eliminates the need for regular refueling or inspection, cutting long-term operation and maintenance costs for business users.
It supports AC220V, AC380V, DC24V, DC220V power supply, with customizable special voltage, and is compatible with switching signal, 4-20mA current signal, 0-10VDC voltage signal control. This wide compatibility allows direct integration with existing industrial control systems, no additional transformation required, reducing procurement and engineering modification costs for system integrators and end-users.
All models are equipped with electronic and mechanical dual limit devices to prevent overtravel, and a worm gear structure with self-locking function, with IP67 protection grade. This design ensures safe and stable operation in harsh environments, avoids equipment failure caused by overtravel or reverse impact, and reduces production loss caused by unexpected shutdowns.
The built-in high-integration intelligent control module supports digital setting, digital tuning, high-precision control and self-diagnosis, with optional external locator. This intelligent design simplifies on-site commissioning, reduces labor costs for installation and debugging, and realizes accurate flow control to improve production efficiency for industrial users.
Parameter | Specification Details |
Model Series | KST Smart Type Electric Actuator |
Output Torque | 50–1000N·m |
Rotation Angle | 0~90° |
Full Travel Time | 9s/13s/15s/30s/50s/100s (factory preset) |
Power Supply | AC220V, AC380V, DC24V, DC220V (customizable special voltage) |
Protection Grade | IP67 |
Ambient Temperature | -25℃~60℃ |
Control Modes | ON/OFF switch, 4-20mA, 0-10VDC |
Electrical Interface | M18×1.5 waterproof cable connector |
Execution Standard | JB/T 8219-2016 |
Installation | 360° arbitrary angle installation |
The smart type electric actuator converts the rotational power of the H-class asynchronous motor into low-speed, high-torque rotary motion of the output shaft through the worm gear transmission mechanism. The integrated intelligent control module receives the control signal from the central control system, drives the motor to run, and realizes 0~90° precise rotation of the output shaft to drive the opening and closing or adjustment of the valve. The dual limit device automatically cuts off the power supply when the stroke reaches the upper and lower limits to prevent overtravel, and the self-locking worm gear structure prevents reverse rotation caused by medium impact, ensuring stable valve position and reliable operation.
This series of industrial electric rotary actuators is widely used in business industries including: Water Treatment & Sewage Disposal, Petrochemical & Oil & Gas Processing, Thermal Power Generation, HVAC & Building Automation, Chemical Processing, Metallurgy & Mining, and Pulp & Paper Manufacturing. It is suitable for controlling butterfly valves, ball valves, plug valves and other rotary valves in industrial pipeline systems.
Damp heater, external positioner, explosion-proof components, remote control module, signal feedback unit
We provide comprehensive OEM/ODM services for business partners, including customizable voltage and control modes, branding and labeling customization, customized torque and travel time, packaging customization, and full technical documentation support, to meet your personalized project and brand needs.
Yes, our actuators support 360° arbitrary angle installation, with waterproof and rust-proof design, no need for refueling or regular inspection, fully adapting to complex on-site layout and installation requirements.
This series supports switching signal, 4-20mA current signal, 0-10VDC voltage signal, with multiple function types including ON/OFF type, regulating type, and non-invasive intelligent type, customizable to meet your on-site control requirements.
Description
• Execution standard: JB/T 8219-2016 (Ordinary and Intelligent Electric actuators for Industrial Process Control Systems);
• Function types: Opening signal type R, passive ON/OFF type BS, regulating type A, non-invasive intelligent type, 2T, 2K;
• Exquisite and durable:
①The box is made of integral aluminum alloy die-casting, with exquisite appearance and compact structure;
②H-class asynchronous motor, with stable performance and strong power;
③High precision alloy gears, multiple heat treatment processes, good wear resistance;
④High strength copper alloy worm gear, with high strength and good wear resistance;
⑤Integrated design of output shaft, eliminating adapter clearance, high precision, and good strength.
• Rich configuration: Can use AC220V, AC 380V AC power supply, DC 24V, DC 220V DC power supply, special voltage can be customized;
• Easy to use: No refueling, no inspection, waterproof and rust proof, can be installed at any angle;
• Protection device: All products in the series are equipped with electronic and mechanical dual limit devices to prevent overtravel;
• Adopting a worm gear structure with self-locking function, it is safe and reliable;
• Control mode: Switching signal, 4-20mA current signal, 0-10VDC voltage signal can be selected as the control signal to Series of KST Smart type electric actuator meet various on-site control requirements;
• Torque range: 50--1000N. m;
• Multiple speeds: Full travel time of 9 seconds, 13 seconds, 15 seconds, 30 seconds, 50 seconds, 100 seconds (set before leaving the factory);
• Intelligent CNC: The intelligent control module is highly integrated into the electric device body and can be externally connected to a locator when needed. Digital setting, digital tuning, highly accurate, self-diagnosis, multifunctional for one machine.
Dimensions And Performance Parameters

KST-05 Performance Parameter
| Model | KST- 05 | |||||||||
| power Supply | DC24V | AC24V | AC110V | AC220V | AC380V | |||||
| output Torque | 15Nm | 10S: 20Nm 20S: 50Nm | ||||||||
| 90° Action Time | 8S | 28S | ||||||||
| Range Of Rotation Angle | 0~90° | |||||||||
| Power | 12W | 10W | ||||||||
| Rated Current | 1.00A | 2.20A | 0.36A | 0.20A | 0.15A | |||||
| overall Weight | 2.3kg | 2.7kg | ||||||||
| Insulation Resistance | DC24V/AC24V: 100MQ/250VAC AC110/AC220V/AC380V: 100MΩ/500VAC | |||||||||
| Voltage Resistance Level | DC24V: 500VAC(1min) , AC110/220V: 1500VAC(1min) , AC380V: 1800VAC(1min) | |||||||||
| protection Grade | IP67 | |||||||||
| Installation Position | 360° installation at any angle | |||||||||
| Electrical Interface | M18x 1.5 one waterproofcable connector, one powercord, and one signal cord each | |||||||||
| Ambient Temperature | -25℃~60℃ | |||||||||
| Circuit Control | B, S, BS, R, A, ZT, ZK(type) | |||||||||
| Optional Feature | Damp Heater | |||||||||
Description
• Execution standard: JB/T 8219-2016 (Ordinary and Intelligent Electric actuators for Industrial Process Control Systems);
• Function types: Opening signal type R, passive ON/OFF type BS, regulating type A, non-invasive intelligent type, 2T, 2K;
• Exquisite and durable:
①The box is made of integral aluminum alloy die-casting, with exquisite appearance and compact structure;
②H-class asynchronous motor, with stable performance and strong power;
③High precision alloy gears, multiple heat treatment processes, good wear resistance;
④High strength copper alloy worm gear, with high strength and good wear resistance;
⑤Integrated design of output shaft, eliminating adapter clearance, high precision, and good strength.
• Rich configuration: Can use AC220V, AC 380V AC power supply, DC 24V, DC 220V DC power supply, special voltage can be customized;
• Easy to use: No refueling, no inspection, waterproof and rust proof, can be installed at any angle;
• Protection device: All products in the series are equipped with electronic and mechanical dual limit devices to prevent overtravel;
• Adopting a worm gear structure with self-locking function, it is safe and reliable;
• Control mode: Switching signal, 4-20mA current signal, 0-10VDC voltage signal can be selected as the control signal to Series of KST Smart type electric actuator meet various on-site control requirements;
• Torque range: 50--1000N. m;
• Multiple speeds: Full travel time of 9 seconds, 13 seconds, 15 seconds, 30 seconds, 50 seconds, 100 seconds (set before leaving the factory);
• Intelligent CNC: The intelligent control module is highly integrated into the electric device body and can be externally connected to a locator when needed. Digital setting, digital tuning, highly accurate, self-diagnosis, multifunctional for one machine.
Dimensions And Performance Parameters

KST-05 Performance Parameter
| Model | KST- 05 | |||||||||
| power Supply | DC24V | AC24V | AC110V | AC220V | AC380V | |||||
| output Torque | 15Nm | 10S: 20Nm 20S: 50Nm | ||||||||
| 90° Action Time | 8S | 28S | ||||||||
| Range Of Rotation Angle | 0~90° | |||||||||
| Power | 12W | 10W | ||||||||
| Rated Current | 1.00A | 2.20A | 0.36A | 0.20A | 0.15A | |||||
| overall Weight | 2.3kg | 2.7kg | ||||||||
| Insulation Resistance | DC24V/AC24V: 100MQ/250VAC AC110/AC220V/AC380V: 100MΩ/500VAC | |||||||||
| Voltage Resistance Level | DC24V: 500VAC(1min) , AC110/220V: 1500VAC(1min) , AC380V: 1800VAC(1min) | |||||||||
| protection Grade | IP67 | |||||||||
| Installation Position | 360° installation at any angle | |||||||||
| Electrical Interface | M18x 1.5 one waterproofcable connector, one powercord, and one signal cord each | |||||||||
| Ambient Temperature | -25℃~60℃ | |||||||||
| Circuit Control | B, S, BS, R, A, ZT, ZK(type) | |||||||||
| Optional Feature | Damp Heater | |||||||||