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