The only brand I know currently offering off the shelf engineered units is Ecosce (who full disclosure, I am currently doing outside sales for). The technology works by pressurizing the solution through a scroll membrane. The membrane has pore sizes on the nanometer scale, and the pores are small enough to allow ethanol molecules to pass through, but not cannabinoids. It then exudes the pure ethanol out through one channel, and a highly concentrated oil/solvent mix out another, which then gets finished in a rotavap or other suitable evaporator.
Since the main energy requirement is just a pump that generates the strong backing pressure, the utility expenses are also much lower than a system that has to evaporate and then chill all the solvent. The system also works with nonpolar solvents, and can get even higher throughput with those.
DM me if you’re interested in talking more about it.