production oreder shedulling

Our Requirement is like this

1We have one machine which runs for 24 hours non stop ( created as Work Center with capacity details start time and end time, no of available capacity )

2 Production Rate is 100 MT per hour

3. we want when we create Process order for qty 3000 by using forward scheduling system should calculates finish date automatically which is 30 th day after start date

Plz let me know what config setting need to done.