Single/Double Sided Precision Vacuum UV Exposure Unit Model AY315 AY321 AZ210 AZ220

For the ultimate in reproduction definition, a vacuum UV exposure unit has to be the choice. Unlike the pressure pad units the AZ series use a vacuum to ensure the artwork and material to be exposed are held in perfect contact. When fine tracks are required on a PCB or detailed definition on a graphic reproduction, an AZ vacuum UV Exposure unit should be chosen.  Double or single sided exposure can be carried out by switching the mode on the unit.

All the AZ units now feature the latest rubber frame and glass plate vacuum system for the ultimate exposure resolution. An adjustable selectable 0-999 seconds timer is fitted to give the operator greater flexibility.  These units are designed and built in the UK

A vacuum gauge is also fitted in the machine enabling the operator to check the level of vacuum before activating the UV tubes.  A vacuum up to -0.5 bar can be created.   All units come complete with an IEC socket and moulded 13 amp plug.  The special fluorescent lamps emit a wavelength of 350-400nm (UV A).

A Double sided UV exposure unit is an essential tool for the production of double sided PCBs.  The ability to expose both sides of the board at once elminates the immense problem of artwork registration for two seperate exposures on a single sided unit.    These units feature a steel box with a set of tubes in the base and lid.  The tubes in the lid are behind a flex.  Mylar film and those in the lid behind a sheet of glass.   When the lid is closed a vacuum chamber is made by switching the vacuum pump on giving perfect contact between the artwork and the material to be exposed.  The bottom set of lights can be switched off if single sided exposure is required