Air tanks feature a molded hole in the bottom of the for water to exhaust and intake. Each one has molded-in grooves and slots for secure attachment to a frame. Because submerging requires filling them with water causing them to sink, When it’s time to re-float, use 3 to 5 psi of air pressure, and the water exits and begin to rise.
Building your boat lift with air tanks by Ace Roto-Mold that have a wall thickness of .375″ offers a lot of lifting capability.
Eight different sizes, in a round and square bottom designs. Threaded inserts are ready for fitting industrial fasteners. Slots and molded-in grooves at the top of each tank make attachment to a frame easy.
Other buoyancy needs such as float drums can by found here.
|Model #||Cubic Foot||Weight (in lbs.)||Bouyancy (in lbs.)||Bottom|