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Ultra-High Frequency Capacitors for Induction Heating - China Suppliers & Factory for 30kHz to 300kHz Solutions
What is ultra high frequency capacitor?
The capacitor frequency designed as high as 30khz, 40khz, 50khz, even 300khz, to meet the ultra-high induction heating machine needs.
What is ultra-high frequency induction machine?
Ultra-high frequency induction machine is usually used for the industrial metal parts surface quenching. It is an induction heat technique that generates a specific eddy-current to the workpiece surface, for heating the surface of workpiece at ultra-high frequency, so as to heat the surface temperature rise to 800-1000 degrees in a few seconds, achieving fast quenching.
Ultra-sonic frequency induction heating power capacitors are popularly used in induction heating & melting processes to increase power factor and decrease energy consumption. The power capacitor is usually designed with a whole-film medium.
Technical Features:
✓
Rated voltage: Max 8K VAC
✓
Rated frequency: 300 KHZ
✓
Soaking oil: degradable Insulation oil, Non-PCB
✓
Medium: All-film
✓
Water-cooling method
✓
Increase power factor and decrease energy consumption
Reference Datasheet:
Ultra-sonic frequency induction heating capacitor (AC Water-cooled capacitor)
| Model | Specification | Voltage | capacity | Frequency | capacitance | current | Tab Nos | Dimension(mm) | Capacitor Shell Feature | Weight (kg/pc) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| KVAC | Kvar | kHz | microfarad(uF) | A | Length | Width | Height | |||||
| RFM | 4.0-0.12-40 | 4 | 483 | 40 | 0.12 | 120.75 | 1 | 170 | 126 | 150 | Insulation | 5 |
| RFM | 4.0-483-40(2) | 4 | 483 | 40 | 0.12 | 120.75 | 1 | 170 | 126 | 150 | Insulation | 5 |
| RFM | 4.0-0.22-30 | 4 | 664 | 30 | 0.22 | 166 | 1 | 210 | 120 | 160 | Insulation | 6.3 |
| RFM | 4.0-691-23 | 4 | 691 | 23 | 0.3 | 172.75 | 1 | 210 | 130 | 160 | Insulation | 7 |
| RFM | 4.0-694-23(2) | 4 | 694 | 23 | 0.3 | 173.5 | 1 | 210 | 130 | 160 | Insulation | 7 |
| RFM | 4.0-700-40 | 4 | 700 | 40 | 0.174 | 175 | 2 | 170 | 126 | 150 | Insulation | 6 |
| RFM | 4.0-0.18-40 | 4 | 724 | 40 | 0.18 | 181 | 1 | 210 | 120 | 160 | Insulation | 6.7 |
| RFM | 4.0-803-40 | 4 | 803 | 40 | 0.2 | 201 | 2 | 170 | 126 | 150 | Insulation | 6.2 |
| RFM | 4.0-0.3-30 | 4 | 905 | 30 | 0.3 | 226.25 | 1 | 210 | 120 | 160 | Insulation | 6.4 |
| RFM | 4.0-0.18-50 | 4 | 905 | 50 | 0.18 | 226.25 | 1 | 210 | 120 | 160 | Insulation | 7.0 |
| RFM | 4.0-965-40 | 4 | 965 | 40 | 0.23 | 241.25 | 2 | 170 | 126 | 150 | Insulation | 5.9 |
| RFM | 4.0-0.2-50 | 4 | 1005 | 50 | 0.2 | 251.25 | 1 | 210 | 120 | 175 | Insulation | 6.7 |
| RFM | 4.0-0.34-30 | 4 | 1025 | 30 | 0.34 | 256.25 | 1 | 290 | 120 | 160 | Insulation | 8.4 |
| RFM | 4.0-0.4-30(3) | 4 | 1206 | 30 | 0.39 | 301.5 | 1 | 170 | 126 | 150 | Insulation | 5.7 |
| RFM | 4.0-0.42-30 | 4 | 1267 | 30 | 0.42 | 316.75 | 1 | 303 | 120 | 160 | Insulation | 8.9 |
| RFM | 4.0-0.24×2-30 | 4 | 1447 | 30 | 0.48 | 361.75 | 2 | 260 | 120 | 110 | Insulation | 6.1 |
| RFM | 4.0-0.48-30 | 4 | 1448 | 30 | 0.48 | 362 | 1 | 290 | 120 | 175 | Insulation | 9.1 |
| RFM | 4.0-0.56-30 | 4 | 1689 | 30 | 0.56 | 422.25 | 1 | 200 | 120 | 150 | Insulation | 7.1 |
| RFM | 4.0-0.6-30 | 4 | 1810 | 30 | 0.6 | 452.5 | 1 | 303 | 120 | 180 | Insulation | 10.3 |
| RFM | 4.0-0.625-30 | 4 | 1885 | 30 | 0.625 | 471.25 | 1 | 250 | 120 | 175 | Insulation | 9.3 |
| RFM | 4-0.32×2-30 | 4 | 1930 | 30 | 0.64 | 482.5 | 2 | 260 | 120 | 110 | Insulation | 6.1 |
| RFM | 4.0-2011-20(2) | 4 | 2011 | 20 | 1 | 502.75 | 1 | 250 | 126 | 220 | Insulation | 12.6 |
| RFM | 4.0-2170-30(4) | 4 | 2170 | 30 | 0.72 | 542.75 | 1 | 303 | 126 | 165 | Insulation | 10.9 |
| RFM | 4.0-0.72-30(3) | 4 | 2171 | 30 | 0.72 | 542.75 | 1 | 210 | 126 | 175 | Insulation | 8.5 |
| RFM | 4.0-0.75-30 | 4 | 2262 | 30 | 0.75 | 565.5 | 1 | 250 | 120 | 180 | non-Insulation | 8.6 |
| RFM | 4.0-0.8-30(2) | 4 | 2413 | 30 | 0.8 | 603.25 | 1 | 210 | 126 | 180 | Insulation | 8.8 |
| RFM | 4.0-0.84-30 | 4 | 2533 | 30 | 0.84 | 633.25 | 1 | 303 | 126 | 220 | Insulation | 12.5 |
| RFM | 4.0-0.68-40 | 4 | 2734 | 40 | 0.68 | 683.5 | 1 | 303 | 126 | 210 | Insulation | 12.1 |
| RFM | 4.0-2894-30(2) | 4 | 2894 | 30 | 0.96 | 723.75 | 1 | 303 | 126 | 185 | Insulation | 11.6 |
| RFM | 4.0-0.96-30 | 4 | 2895 | 30 | 0.96 | 723.75 | 1 | 303 | 126 | 220 | Insulation | 13.9 |
| RFM | 4.0-1-30(2) | 4 | 3016 | 30 | 1 | 754 | 2 | 303 | 126 | 170 | Insulation | 11.5 |
| RFM | 4.0-1.2-30 | 4 | 3619 | 30 | 1.2 | 904.75 | 1 | 303 | 150 | 210 | Insulation | 16.2 |
| RFM | 4.0-1.5-30 | 4 | 4524 | 30 | 1.5 | 1131 | 1 | 336 | 150 | 220 | Insulation | 19.6 |
| RFM | 4.0-2-30 | 4 | 6032 | 30 | 2 | 1508 | 1 | 336 | 126 | 350 | Insulation | 24.6 |
| RFM | 8.0-0.06-300 | 8 | 7238 | 300 | 0.06 | 900 | 2 | 336 | 166 | 395 | Insulation | 34.0 |
Factory operation procedure
1. capacitor cases
1. cooing water tubes-1
1. cooling water tubes-2
2. winding capacitor core-1
2. winding capacitor core-2
2. winding capacitor core-3
3. soldering and assembly
3. solering core
4. Test of intermediates
5. sealing the case
6. Vacuum oil filling process-1
6. Vacuum oil filling process-2
6. Vacuum oil filling process-3
7. leak test
8. Ex-factory test
9. packing and delivery
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Frequently Asked Questions (FAQ)
What is the maximum frequency of an ultra high frequency capacitor?
The capacitor frequency is designed as high as 30khz, 40khz, 50khz, and up to 300khz to satisfy the demands of ultra-high frequency induction heating systems.
What are ultra-high frequency induction machines primarily used for?
They are typically used for industrial metal parts surface quenching. This induction heat technique heats the workpiece surface to 800-1000 degrees in seconds for fast quenching.
What cooling method is used for these induction heating capacitors?
These power capacitors utilize a water-cooling method to handle the high heat and maintain optimal performance during operation.
What type of insulation oil and medium are used in the capacitors?
The capacitors are built with an all-film medium and soaked in degradable, non-PCB insulation oil, making them highly reliable and environmentally friendly.
How do these capacitors contribute to energy efficiency?
They are designed to improve the power factor of the induction heating and melting systems, which significantly reduces overall energy consumption.