Skip to content Torque 50Nm–3000Nm | Multi-Voltage | ON/OFF & Modulating | IP68 & ATEX
We provide a full range of Compact, Intelligent, Explosion-proof, Multi-turn, and Quarter-turn (Q-type) electric actuators engineered for industrial automation. With torque from 50Nm to 3000Nm and multi-voltage options (AC/DC 12V, 24V, 110V, 220V, three-phase), our actuators support ON/OFF, Modulating, and 3-position control. Designed for harsh environments, they feature IP68 protection, ATEX-certified explosion-proof options, anti-condensation heaters, and manual overrides. ISO-compliant interfaces, local/remote controls, and customizable functions ensure reliable, flexible valve automation solutions.
👉 Professional electric actuation solutions provide reliable power for your valve control.
Our electric actuators are widely compatible with a variety of valves, including ball valves, butterfly valves, and control valves, ensuring precise automation control in industries such as oil and gas, water treatment, power generation, and chemicals. Whether it’s a compact, explosion-proof model or a multi-turn, high-torque model, we offer a reliable option for your application.
👉 Not sure which actuator fits your project?
The compact electric actuator for precise valve automation is
Suitable for opening, closing, and regulating applications, these intelligent electric actuators offer a compact design and a wide output torque range (50–1000 Nm), meeting the needs of space-constrained installations. They also boast excellent shock resistance, ISO and CE-compliant protection, and support a variety of DC/AC power inputs (12V/24V/36V DC or 110–380V AC). These actuators offer stable operation and reliable travel overrun protection.
The compact intelligent actuator uses a high-precision stepper motor, which provides stable operation and strong output power, with a torque range of 50-600 Nm. The core transmission component uses a high-strength copper alloy worm gear with excellent strength and wear resistance. It is combined with three sets of high-precision alloy gears and undergoes multiple heat treatment processes to create a solid structure.
Explosion-proof electric actuators are available in two types: explosion-proof compact and explosion-proof intelligent. Equipped with high-performance asynchronous motors, they offer smooth operation and stable output. The torque range covers 50~600N·m, meeting the automation control needs of small and medium-caliber valves. The transmission part uses high-strength copper alloy worm gears and alloy gears, which have undergone multiple heat treatment processes and have excellent wear resistance and load-bearing capacity, ensuring long-term reliable operation.
KST smartexplosion-proofelectric actuator, with compact structure,wide outputtorturerange(50-1000Nm).Suitfordiferentapplicationscenarios,
The KST-Ex05 is an intelligent, explosion-proof electric actuator designed for controlling valves in hazardous environments. It features robust flameproof construction to prevent ignition in explosive atmospheres, making it ideal for industries like oil and gas, chemical processing, and mining. With a torque range of 50–2000 Nm and various motion angles (up to 270°), it offers reliable operation. Additionally, it includes a visual valve position indicator, manual override via a handwheel, and options for remote control, ensuring enhanced safety and efficiency.
Q series adopt lightweight,high torque output, can output torque range of 35-5000N.m.Control mode is mainly divided into two types: on/off type and modulating type；According to the different requirements of the site working conditions,it is mainly divided into Basic type; Mechatronics type, Integrated type, Intelligenttype,widely used in buildings, water treatment,light industry and other fields, serialized product design can provide users with one-stop solutions to meet the needs of different users.
High-strength aluminum alloy housing with anodic oxidation treatment and polyester powder coating on the surface, offering excellent corrosion resistance and durability.
Fully enclosed squirrel-cage motor with built-in thermal protection for continuous operation under load.
Manual operation is not possible when the power is on, ensuring safety.
Non-invasive design with both electric and pneumatic fail-safe options.
Double worm gear drive with self-locking function, high output torque, low transmission noise, and long service life.
Modular design allows for various functional configurations. All metal gears undergo heat treatment for enhanced wear resistance and operational reliability.
Large display screen with bilingual (Chinese and English) operation interface.
Automatic three-phase power wiring detection and phase loss protection, with automatic correction.
This Partial-Rotary Intelligent Electric Actuator features an epoxy resin powder coating and can withstand salt spray tests exceeding 168 hours. It is suitable for automated control of part-turn valves, including butterfly valves, ball valves, and plug valves. It offers excellent corrosion resistance and is suitable for both standard and complex operating conditions. The actuator supports a variety of power inputs, from 24V/90V to 265V AC/DC, and maintains noise levels below 65dB, ensuring safety and reliability.
This Partial-Rotary Intelligent Electric Actuator features an epoxy resin powder coating and can withstand salt spray tests exceeding 168 hours. It is suitable for automated control of part-turn valves, including butterfly valves, ball valves, and plug valves. It offers excellent corrosion resistance and is suitable for both standard and complex operating conditions. The actuator supports a variety of power inputs, from 24V/90V to 265V AC/DC, and maintains noise levels below 65dB, ensuring safety and reliability.
This Partial-Rotary Intelligent Electric Actuator features an epoxy resin powder coating and can withstand salt spray tests exceeding 168 hours. It is suitable for automated control of part-turn valves, including butterfly valves, ball valves, and plug valves. It offers excellent corrosion resistance and is suitable for both standard and complex operating conditions. The actuator supports a variety of power inputs, from 24V/90V to 265V AC/DC, and maintains noise levels below 65dB, ensuring safety and reliability.
KST multi turn electric actuator mechanism, suitable for gate valve, globe valve, and other multi-turn rotary valves, Equipped withlinear thrust unit, can control the direct stroke type control valve, Equipped with worm gear driving mechanism, can controlarge-diameter ball valve, buttertly valve and other partial rotaryvalves; Eouipped with reducer, base bracket and crank arm, cancontrol the damper and baffle valve.
| Shell Material | Aluminum alloy shell, epoxy resin powder coating |
| Transmission Structure | First-class worm wheel and worm gear |
| Electric Parameters | Duty cycle: S2-15 min (on/off type); S4-25% (modulating type) Insulation class: F level (optional H level) |
| Valve Detection | Counting gear (basic type); absolute value encoder (integrated and intelligent types) |
| Moisture-Proof Heater | Standard configuration (for integrated and intelligent types) |
| Torque Range | 50–3500 Nm |
| Rotation Speed | 18–144 rpm |
| Anti-Corrosion Coating | Epoxy resin powder coating, salt mist test ≥ 168 hours |
| Silent Design | Noise level less than 65 dB |
| Protection Level | IP67 (basic type); IP68 (integrated and intelligent types) |
The multi-turn intelligent electric actuator offers a wide speed range (18-144 rpm) and output torque (50-3500 Nm). Its housing is constructed of aluminum alloy with an epoxy resin powder coating for excellent corrosion resistance. It boasts IP67 protection (IP68 optional) and supports multiple functions, including valve position detection, an absolute encoder, and a moisture-proof heater. The motor utilizes an S2-15min duty cycle and has Class F insulation, ensuring efficient and stable operation.
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