Dynapac Drum Mount Our rubber Dynapac drum mount or sandwich mounts are made from a high-quality rubber vulcanized to a steel plate; we stock a wide range of isolator buffers to suit most rollers. Complete your rubber buffer with a bolt kit to suit that roller you are replacing the drum mounts on. Dynapac Part Number 4700394250 To Suit Dynapac CC624HF CC6200 CC524HF CC5200 CC425 CC424HF CC4200C CC384HF CC3800 CC324HF CC322 CC3200 CC224HF CC222HF CC2200C CC1300C