<p>The present invention relates to a Roll-Bond absorber (1) with an aluminium absorber plate (7) produced with roll bond technology which absorbs a part of the sun rays by a surface and performs heat transfer to the fluid by way of conduction. The objective of the present indention is to minimize pressure losses by means of the new fluid flow channels (2), obtain an absorber (1) working with high efficiency and reduce the cost.</p>
