The FG Series scales by A&D can handle heavy weights and is primarily used in quarries to measure large amounts of aggregate. The scale has a built in Hi/Ok/Low comparator that makes measuring a lot of same size samples easier.
The Explorer Balance from Ohaus is part of their full-range line. From 120 g all the way up to 35 kg it has the capacity you’re looking for in a lab scale. All Explorer balances come equipped with a weigh below hook.