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