Most firefighting monitors (also known as water cannons) were designed for use on fire trucks and quickly fail when used in high duty cycle applications such as mining and civil construction vehicle applications. Introducing the Akron Brass Severe Duty 3491 Electric and 3492 Hydraulic Water Cannons. Quite simply the toughest water cannons for mines environments in the world. Severe Duty water cannons are the only proven product that should be considered for vehicle wash down, dust suppression and fire fighting applications in use on Australian mine sites and extreme industrial washing and cleaning. Traditional ball bearing joints found in water cannons can quickly fail under the extreme conditions found in mining and quickly cause irreparable and permanent damage to the joints and seals of the water cannon. Severe Duty Water Cannons feature unique high load bearing HDPE bearing swivel joints that require no grease or regular maintenance intervals. Only Akron Brass Severe Duty Water Cannons offer a 2 year warranty when used in Australian mining environments. Does yours?