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