The 40mm x 80mm shape is designed for larger and heavier structures where strength is required. Applications for E40-4080 include framing systems, roller conveyor systems, fixturing, specialty machines, supports, linear slides and automated assembly systems. This shape can be used to run air lines or as a pressure or vacuum manifold up to 150 p.s.i. 40 Series Extrusion E40-4080-10S — 40mm x 80mm SLOTTED ALUMINUM EXTRUSION – SLOT 10. Matches the 45 Series SLOT 10.