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