In the mining world, assay furnaces are the unsung heroes of accuracy. Before any metal is valued, traded, or refined, it must be tested—and that testing begins with heat. At Furn-Tek, we understand that thermal consistency is the backbone of reliable mineral analysis.
Unlike general-purpose furnaces, assay furnaces are built for:
Rapid temperature ramp-up to reach 1,000–1,600 °C
Stable thermal zones for repeatable smelting and cupellation
Compact sample handling for small-batch precision
Whether you're analyzing gold, platinum, or base metals, the furnace must isolate and concentrate precious metals without contamination or thermal drift.
Our silicon carbide GLO-BARs are engineered to meet the rigorous demands of assay environments:
🔹 High thermal output with minimal fluctuation
🔹 Resistance to oxidation and slag buildup
🔹 Custom geometries for muffle, crucible, and cupellation furnaces
🔹 Extended service life under continuous high-temperature cycles
From the GBU U Lit-Bar to the GBR Tornado, our elements are trusted by labs across South Africa for their reliability and repeatability.
Furn-Tek heating elements power:
Muffle furnaces for scorification and cupellation
Crucible furnaces for fluxing and smelting
Custom-built assay systems for high-throughput labs
Legacy furnace retrofits to modernize outdated setups
Whether you're testing ore from a new prospect or verifying bullion purity, our products support every step of the assay workflow.
Inaccurate assays can lead to:
❌ Misreported ore grades
❌ Poor investment decisions
❌ Inefficient refining processes
That’s why Furn-Tek doesn’t just supply heating elements—we deliver engineered confidence.
Need help designing or upgrading your assay furnace? We offer:
✅ Technical consultation for furnace layout
✅ Custom element sizing and specs
✅ Fast turnaround on critical components
✅ Support for both electric and fuel-fired systems
Let’s build a furnace system that matches your mineral testing needs. Contact Furn-Tek for expert guidance, custom solutions, and heating elements that deliver results.
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Before any metal is cast, refined, or traded, it must be tested. In mining, minera...
In the mining world, assay furnaces are the unsung heroes of accuracy. Before any ...