Single Phase Asynchronous AC Motor

-- Steady & Reliable Manufacturer --

The Imperative: Providing Simple, Cost-Effective Power for Appliances and Tools Operating on Standard Residential Current

The Single Phase Asynchronous AC Motor is the most common electric motor type globally, characterized by its reliance on a single-phase AC power source, making it ubiquitous in residential and light industrial applications. This category includes common variants like Permanent Split Capacitor (PSC), Split-Phase, and Capacitor Start/Run motors. Its core appeal lies in its simplicity, ruggedness, and compatibility with standard household electrical outlets. We provide a wide range of asynchronous AC motors optimized for durability and high-volume production, serving countless fixed-speed drive applications.

Unlike complex electronic drives, the asynchronous AC motor requires minimal control circuitry—often just a switch or a simple capacitor. This simplicity translates to a low manufacturing cost and high reliability, as there are no sensitive electronics to fail. The motor operates at a fixed speed dictated by the line frequency (50 Hz or 60 Hz), providing consistent and predictable performance. Our focus is on optimizing the motor's starting characteristics (torque) and its running efficiency to meet regional energy consumption standards while maintaining a competitive footprint.

We offer specialized designs based on the application's torque requirements: Capacitor Start/Run (CSCR) for high-torque needs (e.g., pumps, compressors), and PSC for lower-torque, continuous-run fan applications. Our manufacturing process ensures that the windings are treated with high-quality insulation and varnish for moisture and heat protection, crucial for motors often installed in less-than-ideal environments like garages, workshops, or utility closets. We provide standard NEMA or IEC frame sizes, ensuring drop-in compatibility for replacement markets and new equipment design.

By partnering with us for Single Phase Asynchronous AC Motors, clients receive a foundationally reliable, globally compatible, and cost-efficient power source for general-purpose appliances and tools. We supply the expertise to choose the right motor type (PSC vs. CSCR) and frame size that delivers the required torque and run life for your specific product application.

Key Product Strengths:

  • Universal Compatibility: Operates directly from standard single-phase residential and light commercial power supplies.
  • High Reliability & Low Maintenance: Robust construction with no sensitive electronics, ensuring long service life with minimal intervention.
  • High Starting Torque Options: Capacitor Start/Run variants provide necessary torque for heavy-duty applications (compressors, pumps).
  • Cost Efficiency: Lowest initial cost for motor drive solutions in the light and medium-duty power range.
  • Fixed-Speed Consistency: Provides predictable output speed based on the utility frequency (e.g., ∼1750 or ∼3450 RPM at 60Hz).

For reliable, globally compliant, and cost-optimized single-phase drive solutions, please request consultation from our asynchronous AC motor design team.

Key Technical Specifications

Parameter Details / Type
Motor Technology Single Phase Asynchronous (Induction)
Common Variants PSC, Split-Phase, Capacitor Start/Run (CSCR)
Rated Power Range 1/8 HP to 5 HP (Approx. 90W - 3700W)
Speed Fixed Speed (Synchronous RPM × Slip)
Frame Sizes NEMA 48/56, IEC standard frames
Operational Focus High Starting Torque, Reliability, Low Cost
Starting Current High (CSCR) to Medium (PSC)

Core Competitive Advantages

  • Interchangeable Frames: Standard NEMA and IEC mounting dimensions allow for easy mechanical integration and replacement.
  • High Inrush Capability: Designed to reliably handle the high starting current inherent in fixed-frequency AC starting without damage.
  • Thermal and Overload Protection: Integrated manual or automatic thermal reset switches protect the motor from prolonged overload conditions.
  • Simplified Wiring: Uses basic line-neutral-ground wiring, simplifying installation and reducing the likelihood of wiring errors.

Installation & Stability Guide

  • Typical Installation: Motor is bolted to a base plate or direct-coupled to the load. Critical Step: For CSCR motors, ensure the motor is wired correctly to match the desired rotational direction (CW or CCW) before connecting power.
  • Scenario Optimization: Ideal when the load requires a fixed, constant speed and the energy consumption benefits of variable speed control are not critical.
  • Visual Demonstration: Cutaway view showing the motor's main and auxiliary windings, centrifugal switch (if applicable), and run/start capacitors.

Applications & Target Systems

About Us
Shengzhou Tianyi Electric Appliance Co., Ltd.
Shengzhou Tianyi Electric Appliance Co., Ltd. was established in 1993 and has been professionally engaged in researching, developing and selling household electrical motors for over 30 years. Tianyi Electric Appliance is China Single Phase Asynchronous AC Motor Manufacturers and Custom Single Phase Asynchronous AC Motor Factory .Our company offers services covering design and development to production and assembly. We provide professional solutions to customers's motor problems.
Our factory is located in Shengzhou city which is famous for the production base of motors with complete industrial chains. The city enjoys convenient transportation: east from Ningbo about 100 kilometers, west from YiWu about 60 kilometers, north from Hangzhou about 120 kilometers.
With about 200 staff now, more than 50 personnel are of intermediate titles in management and research and development. Owning fixed assets of RMB 100 million, the factory covers an area of 25,000 square meters, with a building area of 20,000 square meters. Besides, Shengzhou Yijin Trading Co., Ltd. and Shengzhou Dinghui Trading Co., LTD are the two subsidiary companies. At present, The main products of our company include household washing machine motors, household air-conditioner motors, range hood motors, fan motors ventilator motors, etc. The annual production capacity of the factory is more than 10 million motors, and we keep a good relationship with some famous enterprises such as ZhejiangXiabao, KoreaElectric Groupp, Artel Group, SUNG HWA TECH.Co., Ltd. Kumkanggreenfan Co., Ltd., etc.
Our company has passed the ISO9001 quality management system and obtained product certifications like CCC and CE.
Shengzhou Tianyi Motor will devote itself to Research Development, and innovation, and we will try our best to provide the best products and solutions for customers with the best service.
In 2023, 12 million household motors were produced, and the total number of washing machine motors was 8 million, range hood motors 1.5 million, fan motors 1 million, ventilator motors 1 million, and on and electric motaccessoriesory half a million.
Enterprise honor
In several years of research and development, we paid our sweat to a lot of honors, which also confirmed the efforts we made When look forward, New targets and new challenges are waiting for us, and we are fully prepared!
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