Our new Scania got the scales inbuild in the computer on the truck.
It reads the airpressure from the abs system on the trailer and truck and displays it in the inforsystem in your dash.
Then get the weight on each axle.
Only functions on a airsuspended trailer....
Regarding the punctures, we fill our tires with a product called Tireprotector.
Its a liquid pumped in through the filling valve, spreads inside the tire.
Consists of shreaded tires and a sealing substance. Water based.
If u drive on something thinner than 6 millimeter this susbtance comes trough and seals it immidiately.
U don't get a drop in the tyre pressure.
All trucks driving scrap on dumping fillings use it.
I've tested it many times and it realy works.
Filled punktured tires, heard the leak, pumped the tireprotector inside.
Roll the tire one round and its sealed.
We use it on all types of equipment before we deploy somewhere abroad.
I can tell u, it aint cool to sit out on the Iraqi highway at night with 3 punctured tires and not so many security guy's around.