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