Fan Capacitors Manufacturers

AnHui JuanKuang Electric Co., Ltd. has manufactured film capacitors in Ningguo, Anhui, China since 1995, and the CBB series remains the core of our production. Our Fan Capacitors Manufacturers line covers the motor-run capacitors connected in the auxiliary winding of single-phase fan motors, delivering the phase shift that creates starting torque and keeps the motor running smoothly under load. Capacitance, rated voltage, case outline, lead length and packing format are built to your drawing or sample.

Metallized film coating, winding, welding, end-face metal spray, assembly and final test all run inside one plant, so capacitance and loss behaviour stay consistent from pilot samples through volume fan-motor programmes. Dedicated fan motor capacitor sit alongside compressor, pump and lighting capacitor families in our AC motor capacitor portfolio, and share the same film and winding platform.

Fan Motor Capacitor Range and Construction

The standard body for fan applications is the CBB61 square plastic case, a compact metallized polypropylene design with self-healing behaviour and stable capacitance across the operating temperature range. Multi-section versions place two or three capacitor elements in one case for multi-speed ceiling and pedestal fans, with a common terminal arrangement for pull-chain and wall-control switching.

Application Matching Across Fan Types

Fan Motor Capacitor are specified by motor data, not by appliance name, but the table below shows the selection windows we work with most often when quoting fan-motor programmes. The right column reflects what we adjust in the build once the motor nameplate, winding data and sample test results are confirmed.

The values above are indicative selection windows; the released rating is always the one agreed on your drawing and verified on motor test samples. Fan capacitors share the winding and film platform with our AC Motor Capacitors range and with the Air Conditioner Capacitors used on outdoor fan and compressor circuits.

Film, Winding and Case Assembly

Capacitor element production starts with metallized polypropylene film coated on German metallizing equipment, then wound on Swiss automatic winding machines to the capacitance target. Elements are welded, end-sprayed for contact, encapsulated in flame-retardant plastic cases and assembled before end-of-line electrical test.

• Self-healing dielectric — clears local film defects and extends service life in fan-motor duty.
• Thermal stability — capacitance stays within the drawing window across the fan's operating temperature range.
• Compact footprint — thin film and tight winding allow shallow cases that fit motor housings and control boxes.
• Consistent impregnation and sealing — protects the element against humidity in ventilated and outdoor-adjacent installations.

Critical Specifications We Build To

Each fan capacitor is released against a specification sheet that fixes the electrical and mechanical values below. These are the parameters our test records report, and the basis for the acceptance criteria agreed with your quality team.

• Rated capacitance and tolerance — per drawing, commonly ±5% or ±10%, verified section by section on multi-speed builds.
• Rated voltage and frequency — 250 VAC to 450 VAC classes for 50/60 Hz fan motors.
• Dissipation factor and insulation resistance — limits stated on the specification sheet and checked on finished parts.
• Voltage proof — routine dielectric strength test between terminals and case.
• Capacitance drift — measured after temperature cycling where the appliance standard requires it.
• Mechanical data — case length, width, height, lead wire gauge and stripped length, terminal type and mounting ear geometry.

Quality Control, Testing and Compliance

Production follows documented procedures from incoming film inspection through process parameter control, in-line inspection, semi-finished testing, finished product inspection and shipment release. Finished fan capacitors are 100% inspected at final test against customer requirements and international standards, supported by a 2,000 m² R&D and testing centre.

Our management systems are certified to ISO9001 and ISO14001, and product approvals include UL, VDE, CE and CQC to meet access requirements in North America and Europe. Material compliance declarations cover RoHS, REACH, TSCA and POPs, and can be issued with the shipment documentation your import and compliance teams require.

Installation and Appliance-Line Integration

Fan capacitors are wired across the auxiliary winding, either directly at the motor or in the appliance control box. We fix lead length, wire colour coding and terminal style so the part drops into your existing harness, and we keep case outlines compatible with the mounting clips, straps and slots already used on your assembly line.

• Discharge the capacitor before handling or rework; a bleeder resistor can be specified where the appliance design requires a defined discharge path.
• Route leads away from heat sources and sharp edges; the case is not a structural support for the harness.
• Confirm the capacitance marking against the motor nameplate during service replacement to preserve speed settings and torque.

OEM/ODM Customization, Packing and Delivery

Customization is our core business. We develop and manufacture from your drawings or samples, adjusting capacitance, rated voltage, case dimensions and packaging, and we support OEM and ODM fan capacitor programmes with customer marking and bulk or kit packing. Annual capacitor output is 40 million pieces from a 53,000 m² production base with its own warehousing and logistics centre.

Parts ship to more than 30 countries and regions, with sea freight as the standard mode and air freight via Ningbo or Shanghai when schedules require it. Trade terms such as FOB and CIF are confirmed during quotation, and enquiries receive a reply within 12 hours.

Information We Use to Configure Your Solution

A workable fan capacitor proposal needs the motor and appliance data below. Send whatever is already on file — nameplate data, an existing part drawing, a sample or a failed unit — and we will confirm the build, tooling and documentation scope in the quotation.

Frequently Asked Questions

Which fan capacitor values can AnHui JuanKuang Electric supply?

We build the CBB61 square plastic case series and related fan capacitor constructions to your drawing, with capacitance, rated voltage and dimensions matched to the fan motor. Rather than working from a fixed catalogue list, we quote against the motor nameplate and winding data, then verify the rating on samples before volume release.

Do you support OEM and ODM fan capacitor programmes?

Yes. Customized production is our core business. We develop and manufacture from drawings or samples, including multi-section ceiling fan capacitors, customer-specific lead wires, case dimensions, marking and packaging, under full OEM and ODM arrangements.

Which certifications and compliance documents come with fan capacitors?

Our systems are certified to ISO9001 and ISO14001, and products carry UL, VDE, CE and CQC approvals. RoHS, REACH, TSCA and POPs compliance declarations are available for shipments, so the parts meet the market-access requirements of North America, Europe and other regulated destinations.

How is quality verified before shipment?

Every process stage carries its own inspection, from incoming metallized film checks through winding and assembly, and finished fan capacitors are 100% tested at final inspection against customer requirements and international standards. Capacitance, dissipation factor, insulation resistance and voltage proof results are recorded against the released specification.

What is the difference between a fan capacitor and other AC motor capacitors?

All are metallized polypropylene motor-run or motor-start capacitors; the difference lies in duty profile and mechanical format. Fan capacitors are tuned for low-noise, long-running fan motors in compact plastic cases, while compressor and pump capacitors in our AC motor capacitor family use larger cans and higher current ratings.

How do we start a fan capacitor quotation?

Send the motor rating, required capacitance and tolerance, rated voltage, case envelope, termination details, approval requirements, packing format and expected annual quantity. If a sample or existing drawing exists, include it — that is usually enough for us to confirm the construction and return a proposal within 12 hours.