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78 SMT Magazine • April 2015 rEDuCiNG SMT priNT CyClE TiME continues Case Study A global OEM recently asked for a process audit to help reduce costs. Because of the nature of their assemblies and process equipment set, print cycle time was identi- fied as their rate controlling step. The process manager reported that he was cleaning after each print cycle, using a 15-second wipe/dry vacuum process, and using a squeegee speed of 75 mm (3 inches)/ second. The assembler has 40 SMT lines and runs 16 shifts per week. Actual current out- put will not be disclosed in this article, but the ratios of throughput improvement are proportional. Table 4 shows how increasing squeegee ACross the boArd Table 2. Table 3.

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