Here is the full list of all 76 Mining Mechs achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Collect 100 trash
Make a deal with the devil
Reach a depth of 1000m
Collect 100 jewelry
Find a Hellstone
Collect 100 diamond
Pass the airlock
Reach a depth of 900m
Dig 5.000 blocks
Collect 100 uranium
Unlock the crane mech
Have $1.000.000
Reach a depth of 800m
Collect 30 sapphire
Pass the plated stone barrier
Reach a depth of 700m
Collect diamond ore
Collect 100 amethyst
Collect 20 emerald
Unlock the rhino mech
Collect 100 gold
Collect uranium ore
Reach a depth of 600m
Collect 100 azurite
Collect 10 ruby
Unlock the kangaroo mech
Pass the outpost gate
Reach a depth of 500m
Collect 100 realgar
Collect amethyst ore
Collect 100 cobalt
Reach a depth of 400m
Reach a passive income of $100
Collect 10 treasures
Unlock the turtle mech
Collect gold ore
Use a booster
Have $100k cash
Sell for a total value of $1337
Deliver 1000 dirt
Find out how high you can fly
Dig 2.000 blocks
Bounce on top of the airship
Collect azurite ore
Collect a ruby gem
Collect 100 tin
Collect 100 silver
Reach a depth of 300m
Unlock the scorpion mech
Reach a depth of 200m
Collect 100 copper
Use a teleporter
Use confetti
Unlock the beetle mech
Sell $10k worth of ore at once
Collect an emerald gem
Dig 1000 blocks
Collect realgar ore
Unlock the snake mech
Reach a depth of 100m
Collect a sapphire gem
Find a treasure chest
Find cheese
Get a mech to max level
Unlock the worm mech
Collect cobalt ore
Collect jewelry
Collect copper ore
Reach mech level 3
Connect your first mine
Use an explosive
Collect tin ore
Collect trash
Complete the Tutorial
Collect silver ore