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