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