We don't have a knocking in machine, however, most of the bats we sell are already 'pre-knocked' in. We would always advise around 1-2 hours of further knocking in prior to the bats first usage, particularly around the edges and toe.
You can find out a little more about bat knocking in with our useful link: https://www.cricket-hockey.com/en/module/kbblog/articledescription?article_id=5.
If you are after a bat which is already knocked in, the all the GM bats are knocked in by hand at the factory and are the most "ready to play" bats that we sell.
If you are local to us, then Chase in Dummer, Hampshire offer a knocking in service for all bats.