Aluminum extrusion is a crucial manufacturing process used to create complex profiles and shapes from aluminum alloys. At the heart of this process lies the aluminum extrusion press, a powerful machine that forces heated aluminum billets through a die to produce the desired shape. While the main cylinder is often the focus of attention, the side cylinders play an equally important role in ensuring the efficiency and precision of the extrusion process. In this comprehensive article, we will explore the critical functions of side cylinders in aluminum extrusion press machines and how they contribute to the overall extrusion process.