High-speed, stable screen printer

EMP 2021 Electronics Manufacturing & Production Handbook Manufacturing / Production Technology, Hardware & Services

The US-X range of screen printers, made by ESE, has a printing table featuring four ball screws and three LM guides. This design precisely and firmly positions and supports the print table, allowing even squeegee pressure across the entire width of the printing table and resulting in an accuracy of 12,5 microns and wet printing repeatability of 25,5 microns @ 6-sigma.

The printing-table conveyor system does not have a fixed front or rear rail as with conventional printers. Instead, adjustable front and rear rails position the PCB directly over the centre of the table, allowing consistent, high-precision paste printing for components down to 01005 (0402 metric) and pitches to 0,012 inches (0,3 mm).

The 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 2D paste inspection.

Further reading:

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Mycronic’s MYPro A40 pick-and-place solution
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Why ergonomics matters in digital microscopy
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While magnification technology has kept pace with demand, the wellbeing of the people behind the microscopes has often been overlooked with technicians spending long hours in intense focus, leading to chronic strain, fatigue, and costly mistakes.

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From ER to effortless: The 15-year journey of Seven Labs Technology
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What started as a business likened to an ‘ER’ for electronic components has today grown into a trusted partner delivering kitting services and full turnkey solutions – taking the effort out of electronics and helping customers truly ‘Move to Effortless.’

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