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