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