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