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