This particular hopper (we have 34) is 65.5" long x 30" wide x 49.5" deep, 53" deep to the point of the pyramid. The material is cement which is 90 lbs per cuft. The volumne is 20.08 cuft.
I am looking for insight on sizing, locating and mounting vibrators on 4 sided hoppers to extend the time before failure of the hopper wall due to cracking.