If you manage to get the mining drill, this can be even better than anky. You can move faster and it reduces your weigh. Team up with a good weight argentavis, and you are good to go and get tons of metal in seconds
If you want loads of this on Mobile go to the Volcano with an Ankylosaurus and some chests then you can harvest lots of iron ore and place it into the cabinet. The only issue with this is transporting your iron back to your base. I got 17,000 iron ore with this.