Ultrasonic Welding Machine Film Capacitor

The Ultrasonic Welding Machine Film Capacitor manufactured by Piner's supplier is an industrial high-power customized product for metalized polypropylene (MKP/CBB) film DC capacitors. It is specifically designed for the high-frequency resonance, high-power energy storage, instantaneous large current, mechanical vibration + operating temperature rise core conditions of ultrasonic welding machines. It focuses on optimizing the resonant characteristics at the mainstream ultrasonic working frequencies of 15kHz/20kHz. It is a key resonant energy storage component for the transducer system of the welding machine to achieve the conversion of electrical energy to mechanical energy. Compared to the general high-frequency MKP capacitors, this model has been upgraded in terms of low-loss resonance, large current carrying capacity, resistance to mechanical vibration, and resistance to high-frequency charging and discharging cycles. It perfectly meets the continuous working requirements of various ultrasonic welding machines such as plastic welding, metal spot welding, and non-woven fabric fusion welding, and is a core supporting component for improving the conversion efficiency, welding stability, and overall service life of the welding machine.

1. Precise matching of ultrasonic resonance frequency

Optimized for 15kHz/20kHz welding machine resonance, with extremely low ESR/ESL, loss ≤ 2%, ensuring rapid and stable energy storage and release, and eliminating false welding.

2. High-frequency, high-power, low-loss characteristics

Based on polypropylene film, low loss at ultrasonic frequency, small temperature rise, significantly improving energy efficiency.

3. Exceptionally strong instantaneous large current carrying capacity

Can withstand tens to hundreds of amperes of instantaneous impact (customizable according to specifications), electrode without erosion, meeting the instantaneous energy release requirements of high-power welding.

4. Ultra-high frequency charge-discharge cycle

Can withstand charge-discharge cycles ≥ 10⁷ times, far exceeding the general MKP capacitor, suitable for 24-hour continuous high-frequency operation of the welding machine, matching the lifespan of the entire machine.

5. Temperature resistance and vibration resistance dual advantages

Working temperature -40℃ to +105℃, resistant to cavity temperature rise; vibration resistance grade ≥ 15g, no core body loosening, suitable for the high-frequency vibration environment of the welding machine.

6. High voltage and capacity ultra-stability

Capacity drift in the entire temperature range ≤ ±1%, no voltage attenuation, ensuring stable resonance frequency; rated voltage 400V to 1200V DC can be customized.

7. Excellent adaptability to industrial environments

Metal enclosure fully sealed, moisture-proof and oil-proof; insulation resistance ≥ 10¹²Ω, extremely small leakage current, suitable for long-term use in industrial sites such as workshops.

8. Non-polarity design, flexible installation

Non-polarity, suitable for AC/DC scenarios; output terminals and installation methods can be customized to flexibly match the internal layout of different welding machines.

Typical circuit application

Regular specs

Welder-specific film capacitor Dimension Unit:mm

Note: The above size is for reference only.Customization according to customers’ requirements is available.

Factory Strength

Foshan Pin'er Electronics Co., Ltd., as a national-level high-tech enterprise specializing in the field of film capacitors, we take innovation as the driving force and quality as the foundation, providing global customers with a complete chain solution from core research and development to worry-free after-sales service.

We have a self-built modern production base covering over 3, 000 square meters, focusing on the precise manufacturing of various high-performance metallized film capacitors. Our core product lines include: CBB21/CBB22 type capacitors, CL21 type capacitors, high-power motor-specific CBB60/CBB61 type capacitors, X2 safety standard compliant capacitors, and special capacitors optimized for household induction cookers and other equipment, meeting the strict requirements of multiple industries and scenarios.

Our products have been deeply integrated and applied in multiple key industrial sectors, including consumer electronics and information technology, green lighting, smart home appliances, industrial motor control, automotive electronics, high-end welding equipment, and precision pulse ignition devices, etc. To ensure that our product performance remains at the forefront, we not only introduced world-class fully automated production lines, but also established a global high-quality supply chain system. The core film materials are all selected from international giants such as Toray of Japan, SYC of South Korea, PHD of Germany, as well as top domestic suppliers like Quanzhou Jiaodeli and Zhejiang Nanyang. This ensures excellent quality from the very beginning.

The company strictly adheres to the ISO9001:2015 quality management system in its operations, and has established a complete product certification and environmental compliance system. Among them, the MKP-X2 safety capacitor series has obtained multiple authoritative certifications from countries such as the United States (UL), Canada (CUL), Germany (VDE), and China (CQC). All products strictly follow the EU RoHS and REACH directives standards, meeting the latest international environmental protection requirements, and helping customers' products smoothly enter the global market.

We adhere to the core values of "Professionalism creates value, Trust builds the future". All our work is based on customer needs, guided by market trends, and grounded in lean manufacturing and continuous improvement. We not only offer standard products, but also strive to provide personalized capacitor solutions and efficient technical support services for our customers, aiming to become your most reliable long-term partner.

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