50W 40kHz Horn Type Ultrasonic Cleaning Transducer for DIY Circuit Board Wash Tanks Immersible Box Packs and Lab Parts Cleaner Systems

GB-3540-4SHX 50W 40kHz Industrial Ultrasonic Transducer

Product Overview

The GB-3540-4SHX is a 40kHz 50W Langevin-type piezoelectric ultrasonic transducer designed for ultrasonic cleaning systems and immersible transducer packs. Fabricated with high-stability PZT piezoelectric ceramics and precision-machined aluminum alloy masses, this transducer converts electrical energy into mechanical acoustic vibrations for liquid cavitation cleaning.

Key Design Features

• Sandblasted Radiating Surface: Ground with a fine abrasive wheel to increase mechanical adhesion with epoxy resin on stainless steel surfaces.
• Beveled Horn Geometry: Tapered front mass design matches acoustic impedance and broadens vibrational amplitude into the cleaning tank.
• Insulated Top Construction: High-temperature, corrosion-resistant insulating epoxy provides electrical isolation and structural bond integrity.
• Thermal Stability: Low dielectric loss minimizes heat accumulation during continuous operation.

Technical Specifications

Component Structure & Materials

The transducer uses a prestressed Langevin sandwich structure comprising:

1. Rear Mass (Back Cap): High-strength aluminum block for acoustic reflection.
2. Piezoelectric Ceramic Rings: Lead zirconate titanate (PZT) elements.
3. Electrode Plates: High-conductivity copper contact plates.
4. Insulation Sleeve: Dielectric center tube preventing internal short circuits.
5. High-Tensile Center Bolt: Internal socket head bolt providing mechanical pre-stress.
6. Horn-Type Front Mass: Aluminum radiator focusing energy into the cleaning fluid.
7. Threaded Base: Internal thread for stud fastening.

Installation & Stud Welding Guide

Correct mechanical coupling prevents debonding, uneven cavitation, and plate perforation.

Stud Types:

• Capacitor Discharge (CD) Weld Stud: Welded to the stainless steel (SUS) tank plate using a CD stud welding gun.
• Arc Weld Threaded Stud: Welded to heavy-gauge SUS plates via arc stud welding.

Mounting Instructions:

1. Weld the threaded stud perpendicularly to the external tank wall.
2. Degrease and clean the stainless steel bonding area.
3. Apply a uniform layer of industrial high-temperature epoxy to the sandblasted transducer face.
4. Thread the transducer onto the stud and torque down until excess adhesive flows out evenly around the perimeter.
5. Ensure the radiating face sits flush against the tank with zero tilt and no air voids between the surfaces.
6. Allow the epoxy to cure fully before filling the tank or supplying power.

Electrical Wiring Instructions

• Connection Mode: Connect all transducers in parallel.
• Wire Gauge: Use high-temperature stranded copper wire with a conductor cross-section of 1.5 mm².
• Polarity Connection:
  • Connect all positive electrode lugs (marked +) to the Positive (+) generator output line.
  • Connect all negative electrode lugs (marked -) to the Negative (-) generator output line.

Applications

• Ultrasonic Cleaning Machines: Benchtop, single-tank, and multi-stage cleaning tanks.
• Ultrasonic Immersible Transducer Packs: Submersible modular transducer boxes.
• Industrial Surface Treatment: Degreasing, descaling, electroplating pretreatment, and component washing.

Product Range

Transducer models are available in multiple frequencies, power ratings, and geometries (horn type, cylindrical type, stepped column type) to suit various tank depths and acoustic requirements.

Factory Manufacturing & Testing

• CNC Machining: Production of aluminum masses from certified bar stock.
• Torque Assembly: Controlled pre-stress bolt tightening.
• Testing: 100% testing on digital impedance analyzers to verify resonant frequency, capacitance, and impedance parameters.

Packaging

Transducers are packed in custom die-cut high-density foam trays and placed into multi-layer corrugated export cartons to prevent mechanical shock and ceramic damage during transport.