Q: How can I measure the OEE on machines that works in a  24×7 operation?  Or are there any other indicators that you recommend?

Arno Koch •   Ask your selves: Who is the ‘psychological’ owner of this machine? How do you want to focus this/those people on the losses of this machine? If you have an answer to those questions, you will be able to define the time-frames that OEE will be registered- and reported. Most probably you will talk to the people of each shift. At that point there is barely a difference between a 1, 2, 3 or 5 shift operation. Does this help to clarify your issue?