Safeguard your industrial valve automation systems with Hearken On-Off Electric Actuators. Engineered for heavy-duty performance, our auto cut-off electric actuator for safety features built-in overload protection that instantly cuts motor power. This critical function serves to prevent valve motor burnout and triggers an alarm if limits are exceeded. Don’t just control your flow—protect your equipment and ensure site safety with a design built to last.
On-off Electric Actuators Manufacturer
High Output Torque Design
Hearken electric on-off actuators are optimized for turbine mechanisms, effectively increasing torque output. To ensure precise and accurate movement, Hearken electric on-off actuators feature integrated mechanical limit stops, effectively enhancing the safety of your production line.
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On-Off Electric Actuators
ON-OFF Rotary Type Electric Actuator
No additional parameter adjustments are required, simplifying operation; the actuator offers only two actions: on or off.
ON-OFF Waterproof Electric Actuator
This IP68-rated switch-type electric actuator is suitable for simple switching control in underwater environments.
Advantages
Why Choose Hearken On-Off Electric Actuators?
Maintenance-Free Durability in Your Toughest Environments
When you choose Hearken, you are investing in equipment built to defy the elements. Your IP68 waterproof electric actuator for outdoor use is shielded by a rugged die-cast aluminum housing with a 100μm thick epoxy powder coating, proven to withstand 1000+ hours of salt spray tests (ASTM B117).
You won’t have to worry about external rust points, as we utilize 316 stainless steel fasteners exclusively. For hazardous zones, we also offer an explosion proof electric actuator for oil and gas (compliant with explosion proof electric actuator ExdII BT4 standards). Inside, a built-in anti-condensation heater actively keeps your circuitry dry, ensuring this IP68 waterproof rotary actuator performs reliably for years without maintenance.
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ISO 5211 Direct Mount Technology
Hearken actuators strictly adhere to the ISO 5211 international flange standard, enabling direct mounting onto ball and butterfly valves. While our range covers multi-turn electric actuator options, our core design eliminates the need for intermediate brackets. This direct connection ensures zero-lag power transmission, making integration simpler and valve control more precise.n difficulties.
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Reliable Sealing
Hearken on-off electric actuators feature a fully sealed housing design with double seals at all connections, effectively preventing the intrusion of rain and dust. To ensure long-term operation in harsh environments, Hearken electric switch actuators undergo a series of tests, including salt spray testing and waterproofing, before leaving the factory to ensure stability and durability.
Production
On-Off Electric Actuators Production Process
Machining
To ensure zero-leakage sealing and perfect alignment, Hearken utilizes high-precision CNC machining centers to process every actuator housing. By controlling dimensional tolerances within micrometer levels, we ensure that critical interfaces—such as the output drive and cover seals—fit perfectly, laying the foundation for the On-off Electric Actuator’s IP68 rating.
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Preliminary Machining
Before coating, Hearken housing surfaces undergo a rigorous shot blasting process. This step not only removes machining burrs but also increases surface density and roughness. This critical preparation significantly enhances wear resistance and doubles the adhesion force of the subsequent epoxy coating, preventing peeling even under mechanical impact.
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Final Assembly
Quality is verified, not just checked. During final assembly, every single Hearken On-off Electric Actuator must pass a comprehensive 3-step validation protocol: a Torque Load Test to verify output power, a Hi-Pot Insulation Test for electrical safety, and an Air-Leakage Test to guarantee sealing integrity. Only units with a 100% pass rate are packaged for delivery.
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Efficient Support and Worry-Free Installation
Completely Equipped
Hearken offers a full range of spare parts, including couplings, adapters, brackets, and other accessories, effectively reducing your search time for matching parts.
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High Temperature Adaptability
Hearken on-off electric actuators offer seals in a variety of materials, such as FKM, ensuring excellent sealing performance even in extreme temperature environments.
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Your Professional On-Off Electric Actuators Manufacturer in China
We have a wide range of Hearken on-off electric actuators in stock, and our modular design can effectively shorten the lead time, ensuring your project is delivered on time.
On-Off Electric Actuators by Applications
FAQ
A: Cycle times typically range between 10 and 60 seconds. Hearken optimizes gear ratios to balance speed and torque for reliable open/close operation.
A: Yes. We offer motor configurations compatible with AC 110V/220V/380V and DC 24V power supplies to meet diverse global site requirements.
A: Yes. Hearken Flow on-off actuators feature a manual handwheel, allowing for safe manual valve operation during power outages.
A: Yes. Every Hearken Flow actuator is equipped with adjustable internal limit switches to provide clear signals to your control system when the valve is fully open or closed.
A: Yes, when specified. Hearken Flow provides an explosion-proof series with specialized housings rated for ATEX or IECEx standards for hazardous zones.