28KHz 60W Adjustable Ultrasonic Cleaning Transducer

Specifications

• Resonant Frequency: 28 kHz ± 0.5 kHz
• Output Power: 60 Watts
• Capacitance: ~3800 pF to 4200 pF
• Static Impedance (Resonant): ≤ 10 Ω
• Insulation Resistance: ≥ 100 MΩ @ 250V DC
• Emitter Base Diameter: ~58 MM
• Overall Height: ~67 mm 
• Mounting Method: Bottom center stud mount (M10 threaded hole/stud) + epoxy coupling bond
• Operating Temperature Range: Up to 80°C cleaning solution bath temperature

Applications

• Industrial Parts Cleaning: Removing oil, grease, carbon deposits, and grime from engine parts, carburetors, and machined metal components.
  Electronics & PCB Maintenance: Gentle micro-cavitation for removing flux residues and corrosion from populated circuit boards (using appropriate solvents).
• Jewelry & Precision Optics: Restoring luster and cleaning intricate crevices in rings, watch parts, lenses, and surgical tools.
• Lab Degassing & Sonochemistry: Sonication, liquid emulsification, sample homogenization, and degassing solutions in scientific setups.

Unlock New Capabilities

• Prerequisites: Basic experience handling AC mains power, high-voltage driver boards, and fundamental thermal/mechanical fastening techniques.
• Feature Upgrade: Upgrading from basic micro-ultrasonic sensors or small 35W transducers to a true 28KHz 60W industrial-grade transducer unlocks deep-cleaning cavitation. 28KHz frequency produces larger cavitation bubbles with higher collapse energy compared to 40KHz, ideal for heavy-duty industrial degreasing rather than delicate electronics.
• Effort Level: Intermediate / Advanced (Requires careful mechanical bonding to stainless steel tanks and proper high-frequency driver board pairing).

Package Includes:

• 1 x 28KHz 60W Adjustable Ultrasonic Cleaning Transducer

Frequently Asked Questions (FAQ)

• What is the difference between a 28KHz and a 40KHz ultrasonic transducer?
  28KHz produces larger cavitation bubbles with stronger impact energy, making it ideal for heavy oil, grease, and industrial parts. 40KHz creates smaller, gentler bubbles better suited for delicate jewelry and electronics.
• Can I connect this 60W transducer directly to AC mains power?
  No. It requires a dedicated 28KHz ultrasonic generator driver circuit to supply high-frequency AC current at resonance.
• What driver board power rating should I use with this transducer?
  Use a 28KHz driver output rated for 60W per single transducer, or a multi-channel driver matching the total combined wattage if connecting multiple transducers.
• Can I run multiple 28KHz 60W transducers in parallel?
  Yes, multiple transducers can be wired in parallel to a single high-wattage 28KHz generator (e.g., two 60W transducers on a 120W driver).
• What happens if I power on the transducer without liquid in the tank?
  Dry running causes acoustic energy to reflect back into the transducer, causing rapid overheating and cracking of the piezoelectric ceramics. Always fill the tank with liquid first.
• How do I glue this transducer to my stainless steel tank?
  Use high-strength, high-temperature two-part epoxy. Ensure the metal surfaces are clean, free of grease, and well-sanded before applying pressure and letting it cure fully (24 hours).
• Is an M10 mounting stud strictly necessary if using epoxy?
  Stud welding combined with epoxy is strongly recommended for industrial longevity, but epoxy alone can work for light DIY setups if surface preparation is meticulous.
• How thick should my stainless steel tank wall be for a 28KHz 60W transducer?
  A tank wall thickness between 1.0mm and 1.5mm (Grade 304 or 316) provides optimal energy transfer without dampening or acoustic flex fatigue.
• Which terminal on the transducer is positive and which is negative?
  The center lug sandwiched between the ceramic disks is positive (+), while the outer metallic housing lug is negative/ground (-).
• Can I use this transducer with a 40KHz driver board?
  No. Transducers must be matched strictly to their resonant frequency (28KHz driver for a 28KHz transducer). Mis-matching frequencies results in low cavitation and circuit overheating.
• How many 60W transducers do I need for a 5-liter cleaning tank?
  A general rule of thumb for effective cleaning is 20 to 30 Watts per Liter. A 5-liter tank typically requires two 60W transducers (120W total).