Linear Electric Valve Actuators
for Industrial Valve Automation
AOX designs and manufactures linear electric actuators for globe valves, gate valves, and control valves across petroleum, chemical, water treatment, and power industries. OEM/ODM orders accepted. IP67 standard, ATEX available.
Linear Electric Valve Actuator
Product Range
AOX offers a complete range of linear electric actuators to match different thrust requirements, control functions, and environmental conditions. Whether you need a compact on/off actuator or a fully intelligent modulating unit with bus communication, there is an AOX-L model built for your application.
The intelligent flagship of AOX's linear lineup. Features non-intrusive setup, self-diagnosis, and full bus communication for DCS/PLC integration. Self-locking worm gear holds valve position on power loss.
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AOX's standard linear electric actuator — proven in industrial valve automation worldwide. Compact die-cast aluminum housing, mechanical manual override clutch, and ISO5211-compliant output flange. Eight models from AOX-L-30 to AOX-L-300.
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Designed for Zone 1 and Zone 2 hazardous areas. Carries Exdb II C T5 certification — a higher gas group rating than standard ATEX ExdbIIBT4. Thrust extends to 40,000 N, covering large-bore valves standard models cannot reach.
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Control Configuration
Linear electric actuators output linear thrust and displacement, making them the natural match for straight-travel valves. AOX-L series connects via half-nut or bracket mounting, compatible with most globe and gate valve stems without custom machining.
| Valve Type | Typical Application | Recommended |
|---|---|---|
| Globe Valve | Flow regulation in process pipelines | AOX-L Modulating |
| Gate Valve | Isolation in water supply, oil & gas | AOX-L On/Off |
| Control Valve | Precision flow control in chemical plants | AOX-L Intelligent |
| Diaphragm Valve | Sanitary or corrosive media control | AOX-L (custom stroke) |
| Pinch Valve | Slurry and abrasive media pipelines | AOX-L On/Off |
All AOX-L actuators include self-locking worm gear as standard — the valve position is maintained without power. For active fail-to-open or fail-to-close, consult AOX engineering for spring-return options.
Key Technical Specifications
The following specifications cover the AOX-L and AOX-Q-L series. Parameters such as thrust, stroke, speed, and voltage can be customized. Engineers are encouraged to contact AOX with valve sizing data for a matched recommendation.
| Thrust | 3,000–30,000 N standard; up to 40,000 N (Q-L series) |
| Stroke | 16–100 mm standard; customizable |
| Speed | 0.33–1.5 mm/s (model-dependent) |
| Power Supply | 110/220V AC 1-Ph · 380/440V AC 3-Ph · 50/60 Hz ±10% |
| Control Signal | Digital (on/off); 4–20 mA / 0–10 V; Modbus / Profibus / Hart |
| Position Feedback | 4–20 mA standard; potentiometer or encoder optional |
| Protection Rating | IP67 standard; IP68 optional |
| Explosion Protection | Exdb II C T5 (AOX-Q-L series) |
| Enclosure Material | Die-cast aluminum alloy |
| Ambient Temperature | -30°C to +70°C; -40°C / -60°C options |
| Seismic Performance | X/Y/Z: 10g, 0.2–34 Hz, 30 minutes |
| Motor Insulation | Class H |
| Cable Entry | 2× NPT 3/4″ standard (3-hole optional) |
| Mounting | Vertical or horizontal; ISO5211 output flange |
| Warranty | 1 year after shipment |
| Model | Thrust (N) | Speed (mm/s) | Max Stroke (mm) | Motor (W) | Weight (kg) |
|---|---|---|---|---|---|
| AOX-L-30 | 3,000 | 1.0 | 25 | 30 | 17.5 |
| AOX-L-50 | 5,000 | 1.0 | 40 | 40 | 19 |
| AOX-L-80 | 8,000 | 1.0 | 60 | 40 | 19.5 |
| AOX-L-100 | 10,000 | 1.5 | 100 | 90 | 33 |
| AOX-L-160 | 16,000 | 1.5 | 100 | 90 | 33 |
| AOX-L-200 | 20,000 | 1.5 | 100 | 120 | 33 |
| AOX-L-250 | 25,000 | 1.5 | 100 | 120 | 33 |
| AOX-L-300 | 30,000 | 1.5 | 100 | 120 | 33 |
| Model | Thrust (N) | Speed (mm/s) | Max Stroke (mm) | Motor (W) | Weight (kg) |
|---|---|---|---|---|---|
| AOX-Q-L20 | 2,000 | 0.66 | 60 | 20 | 18 |
| AOX-Q-L30 | 3,000 | 0.66 | 60 | 20 | 18 |
| AOX-Q-L50 | 5,000 | 0.66 | 60 | 20 | 18 |
| AOX-Q-L80 | 8,000 | 0.33 | 60 | 20 | 18 |
| AOX-Q-L100 | 10,000 | 0.50 | 60 | 40 | 30 |
| AOX-Q-L160 | 16,000 | 0.50 | 60 | 40 | 32 |
| AOX-Q-L200 | 20,000 | 0.50 | 100 | 90 | 33 |
| AOX-Q-L250 | 25,000 | 0.50 | 100 | 120 | 34 |
| AOX-Q-L300 | 30,000 | 0.50 | 100 | 120 | 35 |
| AOX-Q-L350 | 35,000 | 0.44 | 100 | 180 | 38 |
| AOX-Q-L400 | 40,000 | 0.44 | 100 | 180 | 38 |
Manufacturing and
Customization Capabilities
AOX — Zhejiang Aoxiang Auto-Control Technology Co., Ltd. — is a dedicated electric valve actuator manufacturer based in Rui'an, Zhejiang, China. With over 30 years of production experience, 71 registered patents, and a factory equipped with precision CNC machining, automated winding, and in-house testing lines, AOX manufactures every actuator under one roof — from raw casting to final inspection.
About AOX
Quality Control and Certifications
All AOX linear electric actuators are manufactured and tested in compliance with international standards. Our quality system covers incoming material inspection, in-process checks at each assembly stage, and 100% outgoing functional testing before shipment.
| Certification | Scope |
|---|---|
| CE (2014/30/EU + 2014/35/EU) | EMC & Low Voltage Directive — standard models |
| ATEX (Exdb II C T5) | Explosion-proof models (AOX-Q-L series) |
| ISO 9001 | Quality Management System |
| IP67 / IP68 | Ingress protection — verified by pressure test per IEC 60529 |
| SIL | Available upon request for safety-critical applications |
AOX actuators are trusted by Fortune 500 energy companies including PetroChina and Sinopec, and have been deployed in pipeline automation projects across petroleum, chemical, power, and water sectors in 50+ countries. Over 500 global distributors rely on AOX for consistent quality and competitive pricing.
Industry Applications
Linear electric valve actuators from AOX are engineered for demanding industrial environments. Below are the key sectors where AOX-L series actuators are actively deployed.
Frequently Asked Questions
Pre-purchase answers for engineers and procurement teams — covering selection, customization, certifications, lead times, and after-sales support.
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your valves?
Talk to an AOX engineer. We'll match the right linear electric actuator to your valve and send a competitive quote — typically within 24 hours.