Multipac / Ammann Drum Mount Our rubber Multipac / Ammann 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. Multipac STA Ammann Part Number 204721 To Suit Dynapac VV900 VV900D VV1400 VV1403 VV2004