SMT screen printers

1 January 2015 Manufacturing / Production Technology, Hardware & Services

Built in Korea to the highest quality standards, all major components of ESE’s screen printers – including printing table, camera and squeegee – are controlled by high-precision servo motors instead of stepping motors and belts, for consistently high accuracy.

The printers’ highly stable design allows uniform squeegee pressure across the entire width of the table and a printing accuracy of 12,5 microns, for components down to 01005 (0402 metric) and pitches to 0,3 mm. A Cognex vision system features an up-down CCD camera and four separate LED rings for fast, accurate recognition of PCB and stencil fiducial marks. Real-time, 2D solder paste inspection (SPI) is standard, and a closed-loop feedback option allows automatic adjustment of the printing registration by a downstream SPI system.

The ESE stencil spray-cleaning system features programmable wet, dry, vacuum and air-blow modes for fast, thorough cleaning, as well as a programmable paper saver. The solvent tank is conveniently located on the side of the machine, eliminating the need to stop production for refilling.

User friendly software running on the familiar Windows XP operating system allows efficient programming of PCBs and easy access to maintenance and manufacturing data.

For more information contact Igmar Grewar, Quamba Technologies, +27 (0)83 417 4294, [email protected],

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