Specialized below the hook grabs and circuitry can be designed to lift single and multiple buckets.  Circuitry can include a sensor to sense that the load is supported before the vacuum is allowed to turn off and the buckets released or that vacuum pressure is correct before a load is allowed to be lifted.

Specialized end of arm tooling or below the hook grabs and circuitry can be designed to lift single and multiple buckets.  Special material can be used such as stainless steels to allow for a wash down environment.