Using a double drum installed parallel to the ground at a height. A patented AMMANN system that operates by gravity.

NO DAMAGE TO THE BITUMEN

• No heat radiation.
• Gentle heating of the RAP.

HIGH EFFICIENCY

• Low exhaust temperature.
• High RAP temperature.

LOW EMISSIONS

• Indirect heating.
• Homogeneous heat distribution.
• Recycling rates of up to 100% can be achieved.
• Improves the chances of approval by public authorities.
• Recipes are more flexible since there is no need to overheat the minerals.