A RICHARDS CONSULTING LTD (ARC) SUCCESSFUL COLLABORATION WITH HULAMIN TO COMMISSION THE WIDENED S5 ALUMINIUM COLD MILL IN SOUTH AFRICA
Ongoing collaboration results in successful, on-time start-up of S5 mill
- Increased maximum strip width capability of the mill to 1875 mm
- Higher material temperature capability enabling faster and back-to-back rolling
- Improved strip quality including:
o New flatness sensor incorporating load cells
o New strip scanner heads
o New spray system
o New enhanced ARC strip dryness system
o An upgraded optical centre guide system
o New snubber roll
- A new, ARC designed compact 3-roll entry bridle with colouring roll
- A new oil-air lubrication system for the mill
- Upgraded spool handling to cater for dual spool lengths
- Manufactured, installed & commissioned on schedule
In September 2023, HULAMIN awarded the contract for the widening of their S5 aluminium cold rolling mill to A Richards Consulting Ltd (ARC). This was followed by Phase 2 which was successfully designed, manufactured, installed and commissioned by mid 2025, as per the original deadline.
Wider Strip Processing
Increasing the maximum strip width opens new markets to HULAMIN and allows the S5 mill to focus on processing wider, 14-out high quality can stock material. In addition, this will enable better distribution of product across all areas of the plant thereby increasing the overall plant utilisation. The main component of this upgrade being a new entry bridle with colouring roll designed and supplied by ARC, which not only allows the wider material to be processed but also includes features to ensure accurate roll positioning, stable tension control and ease of maintenance. The bridle facilitates the mounting of new wider coolant spray bars and the existing coil feed unit.
Also included are new, longer work rolls and back up rolls with new bearing arrangements and the associated chock modifications to accommodate the increased width and higher operating temperatures.
The ARC design caters for increased strip temperatures and speeds but also meets the challenges of accommodating the new surface inspection cameras, strip scanners, strip dryness equipment, load cells and flatness measurement system in an already congested area of the mill.
Feedback from HULAMIN after the successful start up included;
“The mill upgrades were completed as per the project plan with little or no issues related to the work executed by ARC. All the equipment and modifications fitted as planned and have been operating well”
Mill Upgrades
Upgrading a rolling mill is often necessary when introducing a new product and provides an alternative to investing in completely new equipment. Upgrading is also a cost effective solution to updating old or obsolete technology and can also minimize the loss of production associated with replacing equipment with new. However, this is a very specific area of expertise and one which requires the highest level of know-how.
Working closely with HULAMIN over the past 2 years or so, ARC has been able to provide insight into the process aspects of this upgrade, analysis and evaluation of different solutions. ARC also provided CAPEX estimates for the design, supply and implementation and the full design, supply and supervision of installation & commissioning of the new upgraded S5 cold mill.
“I once again would like to acknowledge the great work done by the ARC team and the Hulamin team. This project showed that great things can be achieved when we form great partnerships and a shared vision.”
Marlon Reddy – Engineering Executive, HULAMIN
Aluminium Supplier to Africa and the World
HULAMIN is not only the largest aluminium rolling operation in Sub-Saharan Africa, but is one of the largest exporters, which represents more than 60% of sales. Aluminium semi-fabrication in the form of plate, sheet & foil is supplied to customers across South Africa, Africa and the world focusing on specific product and end-use markets such as automotive, packaging, transportation, building and electrical applications.
A Richards Consulting Ltd (ARC) is a specialist consulting and engineering group with it’s registered office in London. ARC operates from Dorset with a highly experienced team of experts dedicated to the rolling mill industry. This experience is based on many years gained working with companies such as Davy McKee, VAI, SMS Parkegate, FATA Hunter, HATCH etc.
Specialising in upgrades and modernisations, the ARC team understands the critical and complex nature of this business and is ideally placed for providing an efficient, flexible and proactive service to support clients. ARC services range from feasibility studies, due diligence and asset integrity reports, through to full engineering design, project management and supply services. www.arichards.co.uk




