Super simple OS X automator workflow to take text from selection, cut down to the specified number of columns of characters and pass it to the clipboard. Initial use case was simply cutting and pasting from PDF's and Word documents and wanting text that had carriage returns.
The only real option, outside of registering it with your system (Open the workflow on OS X and hit save) is the environment parameter:
export RECLINEWIDTH=<XXX>which sets the number of columns per line without having to change the automator script over and over. You might also want to set a quick key via System Preferneces -> Keyboard -> Shorcuts.
Enjoy!