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