Changzhou Power Station Auxiliary Equipment Co., Ltd. is a Chinese manufacturer based in Wujin High-Tech Industrial Development Zone, Changzhou City, Jiangsu Province, China. The company specializes in the design and manufacture of intelligent electric actuators and auxiliary power station equipment for industrial valve control and automation applications.
Their products are widely applied in industries including power generation, petrochemical, utilities, and metallurgy where automated valve actuation and precise control are needed.
Main Product Categories & Models
1. Multi-Turn Electric Actuators
Electric actuators designed for continuous multi-turn rotation, typically used to operate gate valves, globe valves, and other multi-turn valve types.
Typical Model Series
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SND-Z Series — Intelligent switch type multi-turn electric actuators (torque range approx. 50–1200 Nm)
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SND-ZTD Series — Intelligent multi-turn electric actuators (modulating/regulating type, torque approx. 50–900 Nm)
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SND-ZE Series — Intelligent multi-turn electric actuators (torque up to approx. 2500 Nm)
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SND-ZE/K & SND-ZE/T Series — Versions with specific configurations for industrial automation
Typical Features
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High torque output
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Intelligent control functions
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Multiple speed options
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Manual override possible
2. Part-Turn Electric Actuators
Actuators that provide limited rotation (usually up to 90°) for quarter-turn valves such as ball valves, butterfly valves, plug valves, etc.
Typical Model Series
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SND-Q Series — Intelligent switch type part-turn electric actuators
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SND-QTJ Series — Intelligent part-turn electric actuators (regulating/modulating type)
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SND-QF/K & SND-QF/T Series — Part-turn actuators with additional configuration options
Typical Features
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Compact design for quarter-turn control
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On/off or modulating control
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Manual override
3. Linear Actuators
Electric actuators designed for linear motion control, typically used for gate valves, control valves, and other linear travel applications.
Typical Product Type
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Linear electric actuator devices with various stroke and force options
Typical Features
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Precise linear travel control
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Multiple force and stroke ratings
4. Nuclear Power Equipment
Specialized electric and pneumatic actuator products compliant with requirements for use in nuclear power plant auxiliary systems.
Product Types
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Nuclear-grade electric actuator devices
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Nuclear-grade pneumatic actuator devices
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Other related nuclear auxiliary equipment
Typical Features
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Engineered to meet stringent safety and quality standards
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High reliability for critical applications
Industry Applications
Changzhou Power Station Auxiliary Equipment’s products are used in a variety of heavy industries including:
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Power generation facilities
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Petrochemical processing plants
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Utility infrastructure (water, gas, steam)
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Metallurgical and steel manufacturing plants
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Automated valve control systems
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Renewable energy facilities
Actuators are often paired with gearboxes, control systems, and field instruments for complete automation solutions.
Product Strengths & Capabilities
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Industrial-grade electric actuator design
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Support for switch type (on/off) as well as modulating/regulating control
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Torque ranges from low to high capacity (tens to thousands of Nm)
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Options for multi-turn, part-turn, and linear motion
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Suitable for integration into automated process control systems
Typical Selection Notes (For Technical Use)
| Actuator Type | Typical Motion | Typical Application |
|---|---|---|
| Multi-Turn Electric Actuator | Continuous rotation | Multi-turn valves (gate, globe, valve packs) |
| Part-Turn Electric Actuator | Up to 90° rotation | Butterfly valves, ball valves, plug valves |
| Linear Electric Actuator | Linear travel | Linear valves and stroke devices |
| Nuclear Power Grade Actuator | Special compliance | Nuclear auxiliary systems |
Changzhou Power Station Auxiliary Equipment Co., Ltd.
Product Categories & Representative Models
The company manufactures intelligent electric valve actuators, including multi-turn, part-turn, linear, and nuclear-grade models for industrial valve automation systems.
1. Multi-Turn Electric Actuators
Designed for continuous rotation applications such as gate valves, globe valves, and control valves.
Main Series
SND-Z Series (Switch Type Multi-Turn)
Typical torque range: approx. 50–1200 N·m
Representative models:
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SND-Z25T-18S
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SND-Z60T-18S
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SND-Z120T-18S
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SND-Z25T-24S
SND-ZTD Series (Modulating Type Multi-Turn)
Used for regulating control applications
Torque range: approx. 50–900 N·m
SND-ZE Series (High Torque Multi-Turn)
Higher torque output versions
Torque range: approx. 50–2500 N·m
Multi-Turn Gear Reducer Units
Used to increase torque output
Typical output range: 1800–2500 N·m
2. Part-Turn (Quarter-Turn) Electric Actuators
Used for butterfly valves, ball valves, and plug valves (typically 90° rotation).
Main Series
SND-Q Series (Switch Type Part-Turn)
Representative torque classes:
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SND-Q05 (~50 N·m)
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SND-Q10 (~100 N·m)
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SND-Q20 (~200 N·m)
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SND-Q40 (~400 N·m)
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SND-Q60 (~600 N·m)
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SND-Q120 (~1200 N·m)
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SND-Q180 (~1800 N·m)
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SND-Q300 (~3000 N·m)
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SND-Q500 (~5000 N·m)
SND-QTJ Series (Modulating Type Part-Turn)
Used for flow regulation and precise positioning control.
SND-QF Series
Variant models for specific industrial configurations.
Part-Turn Gear Reducers
Used to increase angular torque capacity.
3. Linear Electric Actuators
Provide linear motion output for linear-stroke valves and control devices.
Product Type
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Electric Linear Actuator Units (custom stroke & thrust configurations)
Specifications typically customized per project:
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Thrust force
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Stroke length
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Travel speed
4. Nuclear Power Equipment
High-reliability actuator systems designed for nuclear-grade applications.
Product Types
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Nuclear-grade electric actuators
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Nuclear-grade pneumatic actuators
Designed for:
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Safety-critical systems
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High-reliability environments
Model Naming Explanation
Example:
SND-Z60T-18S
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Z = Multi-turn actuator
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60 = Torque class
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T = Torque-controlled type
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18S = Output speed (18 r/min type)
Example:
SND-Q120
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Q = Quarter-turn actuator
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120 = Approximate torque rating (N·m class)
Product Classification Summary
| Category | Main Series | Application |
|---|---|---|
| Multi-Turn | SND-Z / ZTD / ZE | Gate & globe valves |
| Part-Turn | SND-Q / QTJ / QF | Butterfly & ball valves |
| Linear | Linear Actuator Units | Linear control valves |
| Nuclear Grade | Special Electric & Pneumatic | Nuclear systems |