For de-scaling medium / large surfaces such as main deck, hatch covers, tank tops, etc. It can easily be transported around the vessel. The only consumable part is the disposable chain drum which are made for one-time-use only and do not require any spares replacement. Simply use them until they are destroyed and then replace the entire drum with a new one. One chain drum set normally lasts for approx. 200 – 225 m2, all depending on the use and surface conditions.