Do any companies make tags specifically for this purpose?
There are no tags designed specifically for tracking cement bags, of which I am aware. There probably are a variety of tags on the market that would work with such bags, but the most appropriate one for your needs would depend on your facility and application requirements. For example, you might use a larger tag if you have to read it from further away, or a smaller one if the reader antenna can be placed closer to the bags at the read point. I would encourage you to attend RFID Journal LIVE! 2015 (naturally) to discuss your application requirements with the many tag vendors that will be there. You will be able to acquire samples for testing and then determine the best tag for your purposes.
—Mark Roberti, Founder and Editor, RFID Journal
What Software Supports RFID? »