A high degree of automation plays a pivotal role in the process control of gravel and ballast plants: the system should monitor and control processing with virtually no operator input. The Ammann as1 Process Control system has a number of interesting functions to meet this requirement, for instance:

• The use of crushing recipes for consumption-oriented production
• Automated target silo change depending on the fill level
• Utilisation of unmanned shifts to completely fill the silos during the evening
• Automatic loading of concrete and asphalt mixing plants
• Options for self-loading materials, for instance at night
• Multiple operator points to support flexible personnel deployment

The as1 process control is used to control the following systems:

• Gravel and ballast plants
• Dolomite plants
• Recycling processing plants