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