ABOUT US

Who We Are

CAgroup Anode Solutions is a division of
CAgroup Pty Ltd (formerly Consolidated Alloys).

For over 30 years, CAgroup has been supplying top-quality anodes to clients across the globe. It is a wholly owned subsidiary of the Amalgamated Metals Corporation (AMC) headquartered in London.

CAgroup has supplied anodes to projects in Australia, Chile, Indonesia, Japan, Mexico, DRC, the Philippines, Peru, Kazakhstan, Mongolia and Belgium, to name a few. With over 95% of our anode output exported around the world, CAgroup is recognised as a world-class supplier to the global electrorefining and electrowinning industry (copper, nickel, zinc and other metalliferous processing plants).

Our clients include leading miners such as BHP, Glencore, Nyrstar, KAZ Minerals and MMG who continue to place repeat business with CAgroup on the basis of the quality and performance of our anodes.

Aurubis
BHP
Glencore
Grupo Mexico
KAZ Minerals
MMG
NEXA
Nyrstar
Penoles
Teck

Investment in R&D

With world-class rolling and fabrication processes located in Melbourne, Australia and a commitment to ongoing investment in R&D, CAgroup has earned a reputation for producing anodes of exceptional quality, performance and durability.

In early 2015, CAgroup put in place an ambitious 10-year plan to progressively upgrade and automate its entire manufacturing process from rolling and TMCR upgrades through to most recent investments in robotic TIG welding, robotic blade profiling and anode blasting. Our ongoing commitment to investing in R&D, guarantees that CAgroup’s anode manufacturing facilities are world-class and capable of producing anodes at the lowest feasible cost.

Commitment to ESG

CAgroup is committed to protecting the environment and pursuing the highest standard of environmental management throughout its operations.

Our manufacturing site is EPA-licensed, and the business aims to exceed all regulatory requirements. CAgroup is also registered as an Approved Arrangements site with the Australian Government’s Department of Agriculture, Water and the Environment, allowing us to import spent anodes for recycling.

Used Anode Recycling/ Repurchasing

As part of our commitment to the environment, CAgroup can purchase back spent anodes from clients, which will be returned to our facility, broken down and recycled in a fully audited and environmentally safe manner. Upon arrival at our facility, used lead anodes for Cu EW are recycled into lower-grade products, whereas lead anodes for Zn EW can be used in the manufacturing process of new anodes if requested by the client.

This practice ensures anodes are constantly repurposed, with minimum waste and/or impact to the environment.

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Get in Touch With Us

Got some enquiries? Contact our anode experts today.
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Cutting & Bending

Copper bars are taken as raw material and are cut into size. Some bars are bent to configuration as required. 

CAgroup can deliver any custom bar specification, according to the client’s need.

Hook Fitting

CAgroup offers a wide range of hook accessories. Hooks are added to the hanger bars per client requirements, especially in the case of anodes for Zinc Electrowinning.

CAgroup can deliver any custom bar specification, according to the client’s need.

Quality Assurance/ Quality Control

All anodes supplied are hard-stamped with a unique identifying number, allowing traceability of that anode right back through the quality system. For each project, a full certification “passport” is supplied to the client, which includes material analysis, mechanical testing, tolerance control and conductivity performance.

Testing and certification are conducted at CAgroup in-house laboratory utilising state-of-the-art testing equipment to test material alloys, microstructure, hardness, mechanical properties and tolerance control.

Blasting

Rolled anodes used in Zinc electrowinning are usually blasted according to client specifications, such as surface roughness, to ensure optimum anode conditioning.

Materials:
Calcium/Tin/Lead Anodes

When in use, pure lead cannot support its own weight and will creep. This creep will break the lead oxide layer on the anode surface, causing exposure of fresh lead to oxidisation and corrosion. Alloying of the lead increases the mechanical strength during use, preventing creep and thus the cracking of the oxidised surface layer and maintaining the anode shape. Lead antimony, lead tin antimony and lead silver were used for many years in copper and zinc electrowinning as alloys to provide the desired mechanical properties. With the advent of solvent extraction and electrowinning systems to produce high-purity cathode deposits, the need arose for much lower lead levels in the cathode deposit. As such, alloys with calcium were developed to reduce the level of lead deposit. As calcium lead alloys are relatively weak, tin is added to increase mechanical strength and decrease creep. Tin addition also reduces passivation when the power is interrupted.

Silver/Lead Anodes

Silver Lead Anodes are used in Zinc Electrowinning. Silver reduces the rate of corrosion over the service life. Typically, the silver content is between 0.4% and 1%. To improve the mechanical properties of the Ag-Pb anodes, allowing elements such as strontium, barium and calcium can be added.

Assembly

The rolled blade and the hanger bar are joined together by lead burning consisting of a full penetration stitch weld (continuous) and then, a second fillet weld.

All assembly will be carried out on custom made jigs to ensure all anodes are concentric.

After assembly, anodes will be removed from the jigs and randomly checked for verticality.

Thermo-Mechanical Controlled Rolling: Rolled Anode

Rolled alloys used for anodes are superior to cast anodes, as the rolling process changes the cast grain structure to produce fine uniform directional grains and reduces the corrosion rate. The rolled anode is produced from large cast slabs, which cool sufficiently slowly so that all the included air and dross generated during the pouring process are removed prior to solidification before rolling. Thus, there are no oxides, air inclusions or laminations.

The rolled anode has a much finer and more uniform grain structure than cast anodes. Corrosion occurs as a fine, uniform, thin layer.

Packaging
and Shipping

Anodes are packed vertically in purpose designed, export quality wooden crates for shipment to clients around the world.

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