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AC Motor Capacitors

An AC motor capacitor is a device used to improve the performance 
and efficiency of an alternating current (AC) motor.

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Custom Metallized AC Motor Capacitors

Production Processes

  • Winding
    Winding
    The process begins with winding the metallized film to create the capacitor's core.
  • Hot Pressing (Flat Core)
    Hot Pressing (Flat Core)
    Here, the wound core undergoes hot pressing to flatten it. This step is important for shaping the capacitor and can also influence its electrical characteristics.
  • Wrapping
    Wrapping
    A protective wrapping is applied to the capacitor for insulation and to maintain structural integrity.
  • Gold Spraying
    Gold Spraying
    Gold is sprayed onto the capacitor leads to improve electrical contact and corrosion resistance.
  • Ring Removal and Edge Rolling
    Ring Removal and Edge Rolling
    Any holding rings are removed and the edges of the capacitor are rolled for a smooth finish.
  • Soldering and Potting and Baking
    Soldering and Potting and Baking
    The leads are soldered to the terminals, and the capacitor is sealed with a resin or glue (potting) and then baked to cure the sealant.
  • Reeling and External Inspection
    Reeling and External Inspection
    The capacitors are wound onto reels for handling and an external inspection is conducted to check for manufacturing defects.
  • Testing
    Testing
    The capacitors undergo a series of tests to ensure they meet the necessary electrical specifications.
  • Printing
    Printing
    Capacitors are printed with necessary information including capacitance, voltage rating, and manufacturer details.
  • Lead Cutting and Taping
    Lead Cutting and Taping
    Leads are trimmed to the appropriate length and capacitors may be taped together in strips for automated installation.
  • Full Inspection (Safety Regulation)
    Full Inspection (Safety Regulation)
    A comprehensive inspection is conducted in accordance with safety regulations to ensure all capacitors are compliant.
  • Final Quality Control (FQC)
    Final Quality Control (FQC)
    A final quality check is performed to ensure each capacitor meets the company's standards.
  • Small Packaging
    Small Packaging
    Capacitors are packaged into smaller units for retail sale or distribution.
  • Bulk Packaging
    Bulk Packaging
    Finally, capacitors are packaged in bulk for shipping to large-scale customers or distributors.

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About
Nantong Jiangsen Electronic Technology Co., Ltd.
Nantong Jiangsen Electronic Technology Co., Ltd.
Nantong Jiangsen Electronic Technology Co., Ltd. is located in a historical and cultural city of Jiangsu Province Rugao. The Hui-style "Shuihui Garden" tops in gardens and can be found nowhere else. As the hometown to "flowers and plants", the traditional bonsai wins appraise from home and abroad. Moreover, Rugao enjoys the reputation of being the city of longevity. Nantong Nantong Jiangsen Electronic Technology Co., Ltd., a dazzling pearl, is sparkling on this ancient and magic land.

Our company covers an area of 78 acres with a construction area of 40,000 square meters.We are China Custom Metallized AC Motor Capacitors Suppliers and Custom OEM Polypropylene Film AC Motor Capacitors Factory. The first phase investment amounts to 160 million RMB and the registered capital is 60 million RMB. With an integration of manufacturing, designing and sales, our company has high automation in metalized films and film capacitors of all series and pitches.
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AC Motor Capacitors Industry knowledge

When selecting AC Motor Capacitors for motor starting, what are the main performance parameters that should be considered to ensure capacitor stability and reliability?

When selecting AC Motor Capacitors for motor starting, it is crucial to ensure the stability and reliability of the capacitor. The following are the main performance parameters that should be considered:

Rated Voltage:
The rated voltage of the capacitor should be equal to or greater than the operating voltage in the motor starting circuit. If the rated voltage of the capacitor selected is too low, it may cause the capacitor to overheat, be damaged or even explode.

Rated Capacity:
The rated capacity of the capacitor should be determined based on the starting requirements of the motor. Too large a capacity may cause excessive current in the circuit, while too small a capacity may not provide sufficient starting torque.

Dissipation Factor:
Dissipation factor reflects the power loss of a capacitor under AC voltage. A lower dissipation factor means that the capacitor generates less heat when operating, thus improving its stability and reliability.

Insulation Resistance:
Insulation resistance is the resistance between the poles inside the capacitor and between the capacitor and the case. Higher insulation resistance helps reduce leakage current inside the capacitor and improves the reliability and safety of the capacitor.

Voltage Endurance:
The capacitor should be able to withstand the transient overvoltage that may occur when the motor is started. Therefore, when selecting a capacitor, attention should be paid to whether its withstand voltage capability meets the requirements.

Temperature Range:
The operating temperature range of the capacitor should adapt to the working environment of the motor starting circuit. If the ambient temperature is too high or too low, the performance and life of the capacitor may be affected.

Life Expectancy:
The life of a capacitor is related to its working environment, working voltage, working current and other factors. When selecting a capacitor, attention should be paid to whether its expected life span meets the usage requirements of the motor.

Safety:
Capacitors should have good safety properties, such as explosion-proof, fire-proof, etc. During the motor starting process, capacitors may generate high temperatures and pressures, so safety is critical.

Certification and Compliance:
Make sure that the selected capacitor meets the standards and regulatory requirements of the relevant country or region, such as CE, UL and other certifications. This helps ensure the quality and safety of the capacitors.