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