Just a random thing I made last month, of the worker body of Synal able to make and utilize one hell of a beefy shield, though the 'handle' was something made just for the sake of the render. I normally wouldn't worry about it, but someone else did the math for the whole thing.

'Okay I found a steel manufacturing company that has a convenient weight calculator on its website. I'm assuming we probably want solid plates of carbon steel, so that you can stop everything up to bunker buster missiles

So a plate of 8'x10'x6" carbon steel would weigh in at about
8891.6kg
Or
19602.43lbs'

So yeah, heavy as all f*** shield, and worker body is able to use it.