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