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