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Aqueous Technologies Stencil & Misprint Cleaning Machine Stencilwasher ZDO

The largest model in the range, the Aqueous StencilWasher ZDO is a fully closed-loop (zero discharge) stencil washer that effortlessly removes 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.

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


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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

Electrical Requirements (North America):

208/240 VAC 1 Phase 50 amps

Wash Tank Capacity:

35 Gallons (133 Litres)

Maximum Stencil Size (full immersion):

29" x 29" (736.6mm x 736.6mm)

Wash Cycle Digital Timer:

1-99 Minutes


1000 Watt Side Mounted Transducers

Hand-Held Rinse Wand:


Hand-Held Airknife:



  • Electronics
  • PCB assembly
  • De-fluxing
  • Semiconductor

Key Features

  • Zero discharge configuration for wash and rinse sections
  • Programmable digital wash cycle timer 
  • Safe 31 watts per litre power ratio 
  • Wash solution heating system with programmable digital temperature controller 
  • Wash solution solder paste filtration system with stainless steel housing
  • Rinse water solder paste filtration system with stainless steel housing
  • Hand-held rinse wand
  • Hand-held airknife
  • Fully enclosed (cabinetised) 

Key Benefits

  • Low operational cost
  • Safe on the environment
  • Small footprint