RD Aluminium is commited to provide high quality aluminium extruded products and superior customer service with a focus
on value-added products to ensure customer satisfaction. The total operation can be viewed below
The starting material for making aluminium extrusions is
the aluminium log or billet. The next process is to cut the long
extrusion log into suitable lengths for extrusion based on press
capacity and the final extruded length.
Extrusion involves pressing a preheated aluminium billet
(450-500°C) under high pressure through a die the opening of
which corresponds to the cross-section of the extrusion.
The pre-heated billet is loaded into the container and squeezed
through the die opening. Typical press sizes range from 1,600
tonnes to 6,500 tonnes, which is sufficient force to cause the
aluminium to flow plastically and exit the die at extrusion speeds
in the range of 5-80 m/min.
At the exit of the die the temperature of the extrusion will be in
excess of 500 deg. C. The extruded length may be as long as
50 metres and may consist of one strand or multiple strands of
the same section.
With most commercial alloys the extrusion will be cooled or
quenched as it exits the press.
RD plants have in-house capabilities in fabrication such as re-cut,
machining, and finishing, (e.g. anodising, powder coating).
We emphasizes the highest standards in quality for both
products and services to meet customer expectation. This has
been achieved through the adoption of quality principles and by
ensuring that all employees understand the importance of quality
performance. All operations of RD Aluminium have accreditation
under ISO 9000 quality system.