28Khz/40Khz Dual-frequency 60w Ultrasonic Vibration Cleaning Transducer For Washing Vegetables And Dishwashers

The ultrasonic vibration plate and Ultrasonic Generator constitute the core components of the Ultrasonic Cleaning Machine, which determines the cleaning quality of an ultrasonic cleaning machine. Therefore, when selecting an appropriate ultrasonic cleaning machine, you must understand the selection of ultrasonic vibr…

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28Khz/40Khz Dual-frequency 60w Ultrasonic Vibration Cleaning Transducer For Washing Vegetables And Dishwashers

Frequency Selection Skill of Ultrasonic Vibrator

ultrasonic vibrator

As we all know, the interior of the shock plate is composed of ultrasonic vibrators. When the working frequency of the cleaning machine is very low (within the range of human hearing), noise will be generated. When the frequency is lower than 20kHz, the working noise not only becomes very large, but also may exceed the limit of safe noise stipulated by the Occupational Safety and Health Care Act or other regulations. In applications where high power is required to remove dirt without considering the surface damage of the workpiece, a lower washer frequency from 20 kHz to 40 kHz is usually selected. The cleaning frequency within this frequency range is often used to clean large, heavy parts or workpieces made of high-density materials. The ultrasonic vibrator produced by Boda Ultrasonic has two kinds of fixed low-frequency ultrasonic vibrators: 28KHZ and 40KHZ.

High frequency is usually used to clean smaller and more precise parts or remove small particles. High frequency is also used in applications where the surface of the workpiece is not allowed to be damaged. Using high frequency can improve cleaning performance in several ways. With the increase of frequency, the number of cavitation bubbles increases linearly, so that more and more intensive shock waves can be generated and they can enter into smaller gaps. If the power remains unchanged, the cavitation bubble becomes smaller, and the released energy decreases accordingly, which effectively reduces the damage to the workpiece surface. Another advantage of high frequency is that it reduces the viscous boundary layer (Bernoulli effect), enabling ultrasound to ‘find’ extremely small particles. We also have 68KHZ, 80KHZ, 100KHZ and 120KHZ ultrasonic vibrators with high frequency.

Type	Length（mm）	Weight（g）	Frequency（KHz）	Resonance Impedance （Ω）	Static Capacity （pF）±10%	Input Power（W）
PU-UT-20100 PZT-8	94	900	20	10-20	5200	100
PU-UT-25100 PZT-4	77	710	25	10-20	6600	100
PU-UT-28120 PZT-4	66	720	28	10-20	7800	120
PU-UT-28100 PZT-8	66	625	28	10-20	5200	100
PU-UT-28100 PZT-4	66	624	28	10-20	6600	100
PU-UT-30100 PZT-8	61	555	30	10-20	5200	100
PU-UT-2560 PZT-4	77	530	25	10-20	5400	60
PU-UT-2860 PZT-8	68	470	28	10-20	3800	60
PU-UT-2850 PZT-4	82	425	28	10-20	4100	50
PU-UT-3360 PZT-8	58	420	33	10-20	3800	60
PU-UT-4060 PZT-8	55	300	40	10-20	3800	60
PU-UT-4060 PZT-4	56	310	40	10-20	5400	60
PU-UT-4050 PZT-4	54	260	40	10-20	4100	50
PU-UT-4050-1 PZT-4	57	300	40	10-20	4100	50
PU-UT-5435 PZT-4	36	135	54	10-20	3200	35
PU-UT-6860 PZT-8	80	460	68	10-20	3800	60
PU-UT-68120 PZT-4	67	588	68	10-20	7800	120
PU-UT-8060 PZT-4	60	325	80	10-20	5400	60
PU-UT-12060 PZT-4	56	260	120	10-20	5400	60
PU-UT-13550 PZT-4	54	215	135	10-20	4200	50