Picture is taken from my workplace, but its made using angle grinder, drill and mig. Doesn't reguire special tools.
I tought one could find it usefull idea.
Material is 50mm ( 2" ) x 50mm x 5mm square tubing.
Plates at the ends are 6mm thick.
Pressure inside it is 6 bars.
Moves hoses from the floor. Hose holders are made from mig wire spools ( 15kg ).