Ian I hope you aren't counting on that snow, in defiance of normal weather patterns we in eastern Canada have had only a dusting of snow, and in Toronto it has been about 10 degrees C for days... Santa will have to put the wheels on this year. Re the trays, if I can use a titanium pallet for wave soldering, what can be wrong with an aluminium tray for movement (although we use plastic tote bins ourselves)? I think a conductive plastic tray would be preferable as it is a bit softer and marginally less likely to involve physical damage to boards, but aluminium should be OK. With respect to ESD, the conductive properties are different but in a properly ESD safe environment would it matter? Plastic would be safer for the operator if the tray happened to come in contact with live wires, but how big an occurrence is that for you/them??? Have a Cool Yule! Graham Collins Process Engineer, Litton Systems Canada, Atlantic Facility (902) 873-2000 ext 6215 -----Original Message----- From: Ian Squires [mailto:[log in to unmask]] Sent: Wednesday, December 16, 1998 2:44 PM To: [log in to unmask] Subject: [TN] aliminium pcb transportation trays Good morning all My last post before xmas i hope (leaving rainy england and visiting snowy Canada for the hols). Enough about my vacation (first one all darn year). The problem is this: we have a particular CEM who transport all their PCB's on ALiminium trays, anywhere from one to 20 assemblies per tray. Is this good practice, What about ESD, Mechanical damage to components and boards, any other. Or is it perfectly acceptable as they are intimating? Happy Xmas to all Ian Squires Regards Ian Squires Senior Production Engineer ------------------------------------------------------- Graseby Dynamics Ltd A Smiths Industries Company Park Avenue, Bushey, Watford, Herts, WD2 2BW Web Site: www.gradyn.co.uk Phone: 01923-228566 xt 295 Fax: 01923-221361 E-mail: [log in to unmask] Registered in England no. 480992 Registered office: 765 Finchley Road, London, NW11 8DS ------------------------------------------------------- ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################ ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################