Hi Martin! Its a pain. First you need specifications. The most sensible specs now involve random vibration to a controlled frequency distribution. The result sounds like wind buffeting, but includes lower frequency (sub-audio) content too. A 6 G rms profile is common for high end consumer equipment. Meeting this is usually not a problem for circuit boards--its the connecting harnesses and mounting screws which are problematic. The old standard was a swept profile, where you deliberately looked for resonances, and tried to excite them. This is no longer considered to be meaningful to the reliability of the device. In any case, you will need a shaker table capable of putting out defined waveforms. These are priced by how much force they'll need to exert (# of G's of acceleration x weight(mass) of the Device Under Test). The lowest end stuff can do the 6 G profile on a couple of pounds for on the order of $20K. Vibration Test Systems makes these. Normally multiple axis vibration testing on PWAs is not called out, at least not multiple axes at once. But if you need to test this, the cost is much higher. Wayne Thayer >>> [log in to unmask] 7/28/2006 11:56:11 am >>> Good morning, I have been asked by our sales team if we have the capability to perform vibration testing on PCBs we assemble. Unfortunately my knowledge of this process is very limited and I have some questions. How difficult is a process like this to set up? Is there a standard test regarding duration, frequency and amplitude of the vibration or should the client provide that detail? Are there manufacturers of equipment for this purpose? I am not sure of the exact quantities of product but it is likely in the development stage so numbers would be limited. Thanks, Martin Butcher Process Engineering --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 ----------------------------------------------------- --------------------------------------------------- Technet Mail List provided as a service by IPC using LISTSERV 1.8e To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest Search the archives of previous posts at: http://listserv.ipc.org/archives Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815 -----------------------------------------------------