When Swedish limestone supplier SMA Mineral AB began planning a new handling system to support a steel mill in Oxelösund, they knew success would hinge on smart design, technical expertise and a partner they could rely on.
From early engineering support through to final delivery, ROXON – part of the NEPEAN family – worked side by side with SMA to bring the system to life on time, on spec and with safety front of mind.
Partnering from the ground up
SMA Mineral AB is one of Northern Europe’s leading producers of lime products. With a strong focus on sustainability and innovation, they supply high-quality lime and limestone to a wide range of industries across the region. The system planned for the steel mill would play a critical role in meeting both production targets and environmental standards.
From the outset, ROXON was involved in shaping the direction of the project. Known for delivering reliable material handling systems, ROXON offers complete solutions – from conveyors and standard equipment to advanced monitoring technologies and lifecycle services. Their technical capability and collaborative approach made them a natural partner for a project of this complexity.
Through early conversations, SMA saw the value in engaging ROXON’s engineering team to help define the system layout. This preliminary phase of engineering and planning gave both teams the clarity they needed to move forward confidently. Multiple options were assessed, budgeted and refined through regular collaboration, supported by risk assessments and practical design considerations.
“Because we were involved early, we were able to shape the design in close collaboration with SMA and make sure the solution aligned with both their technical requirements and operational goals,” says Vesa Sarromaa, Sales Manager at ROXON. “That trust built during the planning stages set the tone for the entire project.”

Bringing the system to life
With project timelines tightening and final investment approval still pending, SMA chose to extend the relationship by commissioning ROXON to deliver the final system design. The process moved smoothly from planning into execution, with contract terms finalised quickly and implementation getting underway soon after.
“This was a technically detailed project with multiple phases and tight timeframes,” Vesa adds. “It required careful coordination between our engineering, project and installation teams – everyone understood what was at stake and delivered to a high standard.”
The limestone handling system delivered by ROXON included:
- One truck unloading hopper
- Five HC-100 conveyors
- One gallery conveyor
- One vibratory feeder
- Two roll screens
- One vibratory screen
- A dust control system
- Four maintenance cranes (three electric, one manual)
- Supervision and phased installation across spring and autumn 2024
The installation was completed in two phases across spring and autumn 2024, with ROXON providing full on-site supervision to ensure a safe and coordinated rollout.
Safety remained a central focus throughout the installation. Risk assessments were completed ahead of each stage of assembly, and the site was managed to ensure a safe and efficient working environment.
With deep experience in managing complex, high-value systems, ROXON’s professionalism and attention to detail were consistently evident across the project.

Trusted to deliver
The strength of the working relationship was reflected in SMA’s final feedback. In a formal review, they rated ROXON’s performance across engineering, installation and commissioning a perfect 10 out of 10.
“We are very pleased with ROXON’s delivery from several aspects,” an SMA Mineral AB representative said. “In addition to quality and punctuality in delivery, the work environment and safety stood out. It was clearly noticeable that it was planned and executed in a very good way.”
For ROXON, this project demonstrates the value of early engagement, open collaboration, and solutions tailored to the customer’s full operational context.
By combining technical depth with a genuine focus on understanding customer needs, ROXON continues to build lasting partnerships and deliver systems that stand the test of time.