Two WAM® WBN 3000 Mixers at the Heart of Vietnam's Ferromolybdenum Production

When SeAH M&S Vietnam set out to build a world-class ferroalloy plant on the industrial coast of Vung Tau, the specification called for equipment capable of blending abrasive, high-value materials with unfailing consistency, batch after batch, day after day. The answer came from WAM®: two WBN 3000 L mixers, engineered to withstand the harshest metallurgical duty and supplied through Wamgroup Vietnam in close partnership with EPC contractor TTCL Vietnam.

More than a year after start-up, the plant is running at full tilt — and a site visit in July 2025 gave WAMGROUP the opportunity to see its technology at work from first principles all the way through to the finished ferroalloy, confirming what decades in bulk solids handling have taught the company: that robust design and process know-how, applied together, are what keep a metallurgical plant running.

WAMGROUP branch	Wamgroup Vietnam
OEM / plant contractor	TTCL Vietnam
End user	SeAH M&S Vietnam (Republic of Korea)
Year of supply	2024
Machines supplied	2 × WAM® WBN 3000 L mixers
Installation site	Vung Tau (Ba Ria), Vietnam
Application	Production of FeMo (ferromolybdenum) ferroalloy

 

The plant's output is FeMo — ferromolybdenum — a ferroalloy composed principally of iron and molybdenum. Added to alloy steels, FeMo lifts mechanical strength, hardness, and resistance to corrosion and to high temperatures, properties that make it indispensable across construction, energy, automotive and oil & gas supply chains. Producing it consistently, at scale, is a metallurgical challenge that leaves very little room for error in the mixing stage: get the blend wrong, and the value of an entire batch of costly raw materials is put at risk.

FeMo: the finished ferromolybdenum alloy leaving the plant

 

It is precisely at this critical stage — the homogeneous blending of the alloy's raw ingredients ahead of melting — that WAMGROUP's engineering was called upon.

 

Ferroalloy production is punishing on process equipment: sharp-edged metallic fines, dense concentrates and reactive additives all pass through the same chamber, cycle after cycle, around the clock. WAMGROUP drew on its long experience in heavy-duty mixing to configure the two WBN 3000 L units specifically for this duty, rather than offering a standard machine off the shelf. Each mixer combines:

• A mixing chamber in Hardox wear-resistant steel, to stand up to continuous abrasion from metallic raw materials;
• Three pneumatically-operated discharge spouts, for fast, reliable, and fully automatable batch discharge;
• Mixing tools with a reinforced 25 mm Hardox thickness, engineered for maximum service life under heavy mechanical load;
• Direct-drive motorisation through a 37 kW coupling, delivering the torque needed to homogenise dense, heterogeneous batches without compromise.

One of the two WAM® WBN 3000 L mixers during final assembly

 

This is design informed by decades on the shop floor of the world's toughest bulk-handling applications: every specification, from the grade of steel to the thickness of the mixing tools, reflects lessons learned across thousands of installations in mining, metals and heavy industry.

Detail of the Hardox mixing tool inside the chamber

 

On 22 July 2025, WAMGROUP's representative, together with the salesperson who had followed the project since its inception in 2024, visited the SeAH M&S Vietnam plant and was walked through the entire production process from raw material intake to finished alloy — a testament to the kind of hands-on, long-term partnership that underpins every WAMGROUP project.

Each WBN 3000 L mixes a batch of 3,000 kg, with the plant running up to 18 batches per day. Every batch is a precise recipe of materials in widely differing shapes and sizes — molybdenum, iron, copper, phosphorus, lead, carbon, sulphur, magnesium, calcium, aluminium and rhenium, together with oil and water — a formulation that leaves no margin for inconsistent mixing.

The two WAM® WBN 3000 L mixers installed side by side on the production line

Plant personnel on site between the two installed units

 

The two mixers work in a continuous cycle: while one machine mixes, the other is being loaded; the instant one discharges, the other is already mixing. This staggered rhythm — engineered directly into the plant layout around the WBN 3000 L's discharge and cycle times — keeps material flowing downstream without interruption, maximising throughput without ever compromising blend quality.

Direct-drive motorisation on the WBN 3000 L, inspected on site

 

Once mixed, the product is discharged into hoppers that feed a series of casting ladles. WAMGROUP's involvement in the process effectively ends at this handover point — but it is precisely the reliability of that handover, batch after batch, that determines the productivity of everything downstream.

Discharge hopper feeding the casting ladles

The ladle line viewed from the mixing platform

 

Inside each ladle, the mixed charge is melted beneath the reactor and then left to cool. Once solidified, the block is crushed to yield the finished FeMo product ready for sale — closing a production cycle in which the consistency and repeatability delivered at the mixing stage ripple through every subsequent step.

Ladles of blended material ahead of melting

The production line viewed along its full length

The finished FeMo alloy, ready for shipment to steelmakers worldwide

 

This project is a clear illustration of how WAMGROUP operates in strategic sectors such as ferroalloys and metallurgy: not as a component supplier, but as an engineering partner present from specification through to years of operation. The collaboration between Wamgroup Vietnam, EPC contractor TTCL Vietnam and end user SeAH M&S Vietnam reflects a model the Group has refined across decades and thousands of installations worldwide — local presence, global engineering competence, and equipment built to run.

With the WBN 3000 L mixers now embedded at the core of SeAH M&S Vietnam's FeMo production, and with more than a year of continuous, trouble-free operation behind them, the Vung Tau plant stands as further evidence of what WAMGROUP brings to the world's most demanding process industries: profound sector expertise, robust engineering, and equipment that keeps performing long after installation day.