Hello all

Putting together tools and workspace to build using epoxy granite and was wondering whats needed to vibrate bigger molds?

I have a few pneumatic vibrators of different size that i have used years ago but only on smaller molds of about 30kg, my planned casting will weigh 100-300kg.

Will these do or do you recommend something else? An electric motor with an offcenter weight and a vfd is pretty easy to throw together.