Aqueous Technologies Trident LDO Low Discharge Machine

Aqueous Technologies Stencil Washer LDO utilises precisely controlled sound waves to remove un-reflowed solder paste from stencils, screens and misprints.

At 40 kHz, the ultrasonic energy is gentle enough not to damage delicate parts, yet is highly effective in the removal of dried pastes on fine-pitch stencils. The built-in ultrasonic "sweep" generator oscillates the cleaning frequency between 37 kHz and 43 kHz, preventing damage to wire bonds and other delicate devices.


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30"D x 55"W x 45"H


600 lbs


welded tube steel frame

16 gauge steel panels


Powder-coating epoxy

208/240 VAC 1 phase 50 amps

Wash tank capacity:

133 litres

Maximum stencil size (full immersion):

29" x 29" (736.6mm x 736.6mm)

Drain requirements:

3/4" NPT

Wash cycle digital timer:

1-99 minutes


1000 Watt side mounted transducers

Hand-held rinse wand:


Hand-held airknife:


StencilWasher LDO is capable of cleaning stencils or misprints up to 29" x 29" in size (full immersion).


  • Electronics
  • PCB assembly
  • De-fluxing
  • Semiconductor

Key Benefits & Features

  • All pastes can be removed
  • Removes adhesives
  • Low operational cost
  • Small footprint
  • Environmentally friendly solution