ESE vision system features an up/down CCD camera and four separate LED rings—three for the PCB and one for the stencil—for simultaneous recognition of PCB and stencil fiducial marks, as well as automatic 2-D paste inspection. The highly accurate system recognizes any type of mark, including custom marks that can be created by the user.

A closed-loop feedback allows connection to a downstream solder-paste inspection system (SPI), enabling automatic calibration of printing registration and adjustment of the under-stencil cleaning system.

The print head, which is controlled by high-precision servo motors and LM guides, features a programmable five-stage snap-off function, resulting in superior printing quality.

The under-stencil cleaning system features programmable wet, dry, air-blow and vacuum modes, for fast, thorough cleaning. The solvent tank is conveniently located on the rear of the machine, eliminating the need to stop the machine for refilling. Other features include a mechanism to prevent the edges of the cleaning paper from fraying and a programmable paper saver.

The user-friendly ESE software, which runs on the familiar Windows 7 operating system, allows efficient programming of PCBs and easy access to maintenance and manufacturing data.

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