Single AC Motor

The Single AC Motor is a practical choice for medium-to-high power, high-starting-load applications, such as industrial compressors, deep-well pumps, heavy agricultural machinery, and processing equipment. Its core advantage is achieving near three-phase motor startup performance with single-phase power, but regular maintenance of centrifugal switches and capacitors is essential.

 

 

Strictly match load characteristics (e.g., resistance type, inertia).

Prioritize electronic switches (e.g., SSRs) over mechanical centrifugal switches for reliability.

Enhance cooling (e.g., auxiliary fans) and protection (IP55+ enclosures) in high-temperature or dusty environments.

 

 

 

 

1, Reliable Performance for Industrial Loads

High Starting Torque: Delivers 3 times rated torque during startup (supported by factory test reports), meeting the power demands of crushers, medium-sized water pumps, and reducing startup failures.

Voltage Adaptability: Compatible with 220V±10% voltage fluctuations (198V-242V), suitable for most industrial power supply conditions.

 

2, Energy Efficiency, Cost-Effective Operation

Dual Capacitor Coordination: Precision-matched starting and running capacitors boost power factor to above 0.93 (factory lab data), saving 12%-15% energy compared to traditional single-capacitor motors.

Proven Cost Savings: Annual electricity savings of ¥1,800-2,200* (based on 10-hour daily operation, industrial rate ¥0.8/kWh).

 

3, Robust Durability

Reinforced Cast Iron Housing: Passed 10,000 vibration tests (GB/T 2423.10 standard), minimizing deformation during long-term operation. Temperature Control: Class F insulation + optimized airflow design ensures winding temperature rise ≤75K (GB 755 standard).

 

4, User-Friendly Maintenance

External Capacitor Compartment: Replace capacitors without disassembling the motor (standard tools required).

Standard Bearings: Uses 6202/6203 series bearings, widely available for easy user maintenance.

 

 

(1) Ambient Temperature: -15℃≦θa≦40℃

(2) Rated Voltage: 220V AC

(3) Rated Frequency: 50Hz/60Hz

(4) Altitude: ≦1000m

 

 

The Single AC Motor(starting capacitor + running capacitor), with its high starting torque (2.5–3 times the rated torque) and medium power output, is ideal for medium-to-high power scenarios requiring rapid startup, intermittent heavy loads, or short-term high loads. Its design is particularly suited for equipment needing to overcome high initial resistance but operating under stable loads afterward. Below are its key applications and examples:

 

Industrial and Commercial Equipment

• Industrial air compressors: Powers air compression cylinders (e.g., for workshop pneumatic tools or sandblasting equipment), requiring rapid startup to overcome piston inertia.
• Reason: Dual capacitors deliver instant high torque to prevent startup jamming and ensure quick pressure buildup.
• Commercial refrigeration system compressors: Medium-sized cold storage or refrigerated transport units where low temperatures increase lubricant viscosity and startup resistance.
• Reason: The starting capacitor ensures reliable compressor startup in cold conditions.

 

Pumps and High-Head Fluid Systems

• Deep-well submersible pumps (80–120 m head): Agricultural irrigation or remote area water supply, requiring rapid air evacuation and impeller activation.
• Reason: The starting capacitor overcomes initial no-load resistance; the running capacitor maintains efficient water delivery.
• Industrial sewage/sludge pumps: Discharges high-viscosity wastewater containing fibers or sand (e.g., chemical plants, sewage treatment stations).
• Reason: Dual capacitors handle debris blockages and viscous resistance for stable startup.

 

Agricultural and Heavy-Duty Machinery

• Heavy-duty feed pellet mills: Compacts high-density materials like corn stalks or straw, with flywheel-assisted startup for smooth operation.
• Reason: The starting capacitor breaks static friction from material buildup; the running capacitor sustains processing efficiency.
• Commercial oil presses/large dough presses: Processes hard oilseeds (e.g., coconut, palm kernel) or high-gluten dough with extreme initial resistance.
• Reason: Dual capacitors prevent motor stalling, enabling continuous high-intensity operation.

 

Power Tools and Industrial Processing Equipment

• Industrial woodworking machinery: Heavy-duty circular saws or planers cutting hardwood or metal composite boards face sudden load spikes during blade engagement.
• Reason: The starting capacitor provides instant power to prevent motor burnout.
• Small punch presses/hydraulic shearing machines: Intermittent stamping of thick metal plates (e.g., steel, aluminum) requires short-term high torque to overcome material resistance.
• Reason: Dual capacitors handle shock loads, extending motor lifespan.

 

Specialized and Customized Systems

• Solar-powered irrigation systems: Off-grid solar setups requiring reliable low-voltage startup in remote areas with unstable power.
• Reason: Enhances startup reliability during inverter output fluctuations.
• Laboratory high-pressure reactor agitators: Mixes high-viscosity chemicals (e.g., colloids, resins) with smooth startup to prevent splashing.
• Reason: The starting capacitor enables gentle acceleration; the running capacitor maintains constant speed.

 

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