AMH casts their single groove drums using 8630m alloy, quenched and tempered to 380-400bhn. We feature 2 main sizes 24” and 30”. groove depth has been precisely machined to ensure true seating of the chain when engaged around the drum.
AMH can also add flanges in a full range of sizes based on customer request. also, pre-installed hubs can be utilized, allowing the unit to be completed and shipped as a full assembly.