Ultrasonic Stencil Cleaner Machine
Stencil Cleaner Filtration System

Key Benefits

  • Aperture Cleaning: Cleans fine-pitch stencils and apertures thoroughly.
  • Paste Removal: Dissolves both wet and dried solder paste and red glue.
  • Large Frames: Custom sizes for 23"x23" and 29"x29" frames (and other dimensions on request).

Technical Specifications

Frame SizeStandard 23"x23" / 29"x29" (Custom sizes available)
Frequency40 kHz (Safe for fine apertures)
Tank MaterialStainless Steel 304 / 316 (Heavy Duty)
ProcessUltrasonic Wash + Air Dry / Rinse (Optional)
FiltrationRecirculation with 5-10 micron filters
GeneratorsDigital Generators with Sweep Mode

Ultrasonic Stencil Cleaner & SMT Cleaning Machine

LeelaSonic manufactures high-performance ultrasonic stencil cleaning machines for the SMT assembly industry in India. These machines are essential for maintaining zero-defect solder paste printing by thoroughly cleaning solder paste, red glue and flux residues from stencil apertures.

Unlike manual scrubbing or simple spray cleaning, LeelaSonic India uses advanced ultrasonic cavitation to gently but powerfully clean fine-pitch stencils, screens and misprinted PCBs without disturbing the delicate foil tension or mesh.

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Applications

  • SMT Stencils: Cleaning stainless-steel stencils (framed & frameless) used for solder paste printing.
  • Thick Film Screens: Removing conductive inks and pastes from mesh screens.
  • Misprinted PCBs: Safely removing wet solder paste from expensive PCBs for reuse.
  • Squeegees & Tools: Cleaning printing squeegees, spatulas and small accessories.

Our ultrasonic stencil cleaners are widely used by SMT lines, EMS companies and PCB manufacturers across India who need consistent, repeatable cleaning to reduce defects and downtime on the production line. For cleaning populated circuit boards and flux removal, please see our Ultrasonic PCB Cleaner.

Frequently Asked Questions

Can this machine clean dried solder paste?

Yes. The ultrasonic action penetrates the microscopic apertures of the stencil, effectively dislodging dried solder paste and red glue that manual cleaning cannot reach.

Does it damage fine-pitch stencils?

No. We use a gentle frequency (40 kHz) and strictly controlled ultrasonic power to ensure that delicate foil tensions and fine apertures are not damaged during cleaning.