1. Bruker Hydrostatic Extrusions advanced manufacturing technology ensures that factory operation is able to satisfy supreme standards of production properties. Utilizing hydrostatic extrusions technology, CUPONAL® Copper-clad Aluminum achieves a beautiful and even grain structure while maintaining accuracy within a wide range of sizes. Since 1970, Bruker Hydrostatic Extrustions has been serving the global power distribution industry with a high standard CUPONAL™ wire.

2. Introduction of Copper-clad Aluminum
CUPONAL™ is a copper-clad aluminum (CCA) bi-metal conductor developed to provide an economic alternative to solid copper. Produced by the hydrostatic extrusion process, CUPONAL™ consists of a solid core of electrical grade aluminum with a pressure bonded seamless outer layer of high conductivity copper.
CUPONAL™ delivers economic and weight saving advantages over solid copper, yet retains the surface properties of a copper conductor. It is often possible to substitute copper wire with CUPONAL™ wire of equal diameter, which yields the maximum cost efficiency.

3. Strength
1)    Strong electrical conductivity: standard CUPONAL™ wire possesses a nominal copper clad of 15% by volume, while conducting 85% current flow compared to pure copper.
2)    Lightweight: the relative density of CUPONAL™ vs. copper results in the mass of CUPONAL™ being only 41% of that of copper of equal diameter.
3)    Excellent mechanical properties: possesses good strength of extension, flexibility and elongation.
4)    Solid combination by copper and aluminum: two metals achieve permanent atoms combining in all environment temperatures. The copper layer is bonded seamless and evenly without any physical flaws.
5)    Strong malleability and reliability: produced by special thermal treatment, CUPONAL™ possesses strong malleability which benefits punching, cutting, bending without crack or separations.
6)    Best option: Environmentally friendly and pollution free, saves copper and reduces the production cost.
Notice: Width and thickness of CUPONAL™ can be customized.

4. Application
1)    Switch Cabinets
2)    Control Cabinets
3)    Transformers
4)    Safety Switches
5)    Vacuum Switches
6)    Relay Systems
7)    Motor Controls
8)    Rail Power Supplies
9)    Electrode Calibrations
10)    Reactor and Other Windings
11)    Rail Tractions
12)    Power Distribution Cabinets in High, Medium, and Low Voltages
13)    Cluster Engine and Substations
14)    Copper-aluminum Composites
15)    Conducting Bar of High and Low Voltage Power Distribution Cabinets
16)    High and Low Voltage Bus bars