41-HMA Screen Printing Unit (Code: )

Vacuum screen printing units ideal for screen printing component ident and solder masks onto printed circuit boards, as well as printing front panels, nameplates etc. The two sizes are available to handle, nominally, A2 and A1 paper sizes on the vacuum area. The maximum outside frame dimensions which can be mounted are larger than the vacuum area to allow for the frame thickness and surplus mesh surrounding the working area. The working surfaces are solvent resistant. Different screen sizes can be accommo-dated by the sliding screen mounting channels. Vacuum is provided by a Whisper Vacuum unit which is permanently mounted on the lower shelf on all machines supplied with a floor stand. A sliding plate isolates the vacuum from the bed when the frame is raised to aid substrate removal.

The screen frame is of substantial box section construction, epoxy powder coated and fitted with bronze brushed, hardened pivots. To accommodate differing thickness' substrates and adjust 'snap' the screen frame pivots and front stops provide a full 50mm (2") of vertical adjustment. An adjustable height stop limits lift and a counter balance weight can be adjusted to achieve precise balance for the majority of frame types. Both the A1 and A2 units are supplied fully assembled fitted to a stand with the Whisper Vacuum unit permanently fixed to the lower shelf.