Would agree with Clive about bolting it down onto the pallet if possible.
Seller did just that with my BH600G lathe, and it was rock solid.
However, sellers of the Marlow, TS and Boxford Shaper only strapped theirs down, but they arrived safely except for the Marlow Handwheel handle going AWOL en-route.
The last thing you or the carrier would want is for those lumps of metal to break free, but surely the carrier would inspect before accepting.
Geoff – Waiting for the Dawn Chorus 