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