Why doesn the Model 1500 and 1550 totally immerse a 29″ (750mm) stencil?
Smart Sonic has been manufacturing ultrasonic stencil cleaners since 1990. We have made the mistake years ago that new competitors are just now experiencing. A 29″ stencil is only contaminated a maximum of 25-26 inches from one end. Therefore only 26 inches of the stencil requires immersion. The remaining 3 – 4 inches remains outside of the wash solution and serves as a convenient “handle.” Otherwise, the user would need to wear gloves or the stencil would need to be placed into a basket. Systems that totally immerse a 29″ stencil need to be made taller to accommodate the additional 4 inches. This additional height makes it more difficult to load and unload. If the stencil is totally immersed, the user will need to load the stencil into a basket. Now, the user will need to lift the weight of the stencil and basket. The basket handles will be above the stencil which means the user will need to use a step ladder to clear the top of the machine. OSHA frowns on an operator lifting anything
