The AVI-MLM-001 Fire Assay Module is a complete laboratory-scale precious metals assay system designed for high-throughput fusion and cupellation operations. The module combines a 25-place fire assay fusion furnace and a 25-place cupellation furnace, allowing laboratories to process up to 25 samples per batch with consistent temperature control, repeatable results, and improved operator safety.
The system includes heavy-duty refractory loading trays for both crucibles and cupels, enabling rapid batch loading and unloading while minimizing handling of hot materials. The fusion furnace operates up to 1150°C with precision PID temperature control and silicon carbide heating elements for efficient melting of fire assay charges. The dedicated cupellation furnace operates between 900°C and 980°C with controlled air flow to support complete lead oxidation and precious metal bead recovery.
To ensure compliance with modern laboratory safety and environmental standards, the module incorporates a compact HEPA-filtered dust collector and a stainless-steel hood connected to a packed-bed wet gas scrubber. The gas treatment system is designed to capture particulate matter, lead fumes, sulfur dioxide (SO₂), and other acid gases generated during the assay process, providing a safer working environment and reducing atmospheric emissions.
Designed for commercial assay laboratories, mining operations, metallurgical facilities, universities, and research centers, the AVI-MLM-001 provides a turnkey solution for gold, silver, platinum group metals (PGMs), and other precious metal fire assay applications. The modular design, industrial-grade construction, and automated temperature control systems ensure reliable operation, high productivity, and long service life in demanding laboratory environments.
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| QTY | ITEM DESCRIPTION | SKU |
|---|---|---|
| 1 | Fire Assay Fusion Furnace — 25-place crucible | AVI-FF-25CR |
| 1 | Cupellation Furnace — 25-place cupel | AVI-FF-25CU |
| 2 | 25-Place Crucible Loader Tray | AVI-CLT-25 |
| 2 | 25-Place Cupel Load Tray | AVI-CUT-25 |
| 1 | Dust Collector — Compact | AVI-DC-SML |
| 1 | Gas Scrubber with Hood & Exhaust Duct | AVI-GS-HOOD |
AVI-FF-25CR — Fire Assay Fusion Furnace
Qty: 1
Top-loading electric muffle furnace for fire assay fusion of 25 crucibles simultaneously. Rapid ramp-up to 1100°C, PID temperature control with digital display, refractory-lined chamber, motorized door and rolling tray loader for safe crucible insertion and extraction.
| Width | 1000 mm | Depth | 800 mm |
| Height | 1400 mm | Chamber Volume | ~120 L |
| Max Temp | 1150°C | Temp Control | PID ±1°C |
| Capacity | 25 crucibles | Loading | Front-load tray |
| Heating | Silicon carbide elements | Ramp Rate | ≤25°C/min |
| Electrical | 415V 3-phase / 18 kW | Compliance | CE / AS/NZS 3000 |
AVI-FF-25CU — Cupellation Furnace
Qty: 1
Electric muffle furnace purpose-built for cupellation of 25 cupels simultaneously. Operates at 900–980°C with controlled air-bleed for lead oxidation, motorized door, rolling cupel tray and separate flue exhaust collar connecting to hood/duct.
| Width | 1000 mm | Depth | 800 mm |
| Height | 1400 mm | Chamber Volume | ~100 L |
| Max Temp | 1000°C | Operating Temp | 900–980°C |
| Capacity | 25 cupels | Loading | Front-load tray |
| Air Supply | Controlled bleed valve | Exhaust | Rear collar 150 mm dia. |
| Electrical | 415V 3-phase / 15 kW | Compliance | CE / AS/NZS 3000 |
AVI-CLT-25 — 25-Place Crucible Loader Tray
Qty: 2
Heavy-duty refractory-board loader tray with 25 pre-formed crucible pockets arranged in a 5×5 grid. Fits directly into AVI-FF-25CR via guide rails. Rated to 1150°C, heat-resistant handle grips, low-profile design for fast loading.
| Width | 750 mm | Depth | 550 mm |
| Height | 40 mm | Capacity | 25 crucibles, 5×5 grid |
| Material | Refractory board | Max Temp | 1150°C |
| Handle | Heat-resistant grip | Guide System | Rail-guided insertion |
AVI-CUT-25 — 25-Place Cupel Load Tray
Qty: 2
Refractory cupel load tray with 25 formed recesses in a 5×5 layout matched to AVI-FF-25CU chamber. Smooth-bore recesses prevent cupel movement during insertion. Rated 1000°C continuous, rail-guided.
| Width | 720 mm | Depth | 520 mm |
| Height | 35 mm | Capacity | 25 cupels, 5×5 grid |
| Material | Refractory board | Max Temp | 1000°C |
| Recess Dia. | 45 mm standard | Guide System | Rail-guided insertion |
AVI-DC-SML — Compact Dust Collector
Qty: 1
Compact cartridge-type dust collector for capture of furnace particulate and flue dust. HEPA-rated filter cartridge, pulse-jet self-cleaning, negative-pressure operation with integral blower. Suitable for connection to duct from cupellation furnace exhaust.
| Width | 600 mm | Depth | 600 mm |
| Height | 1200 mm | Airflow | 500–1000 m³/h |
| Filtration | HEPA cartridge | Cleaning | Pulse-jet, auto |
| Inlet | 150 mm dia. | Electrical | 240V / 2.2 kW |
| Housing | Mild steel, epoxy | Compliance | AS 4260 |
AVI-GS-HOOD — Gas Scrubber with Hood & Exhaust Duct
Qty: 1
Stainless-steel canopy hood spanning both furnaces with integral exhaust duct connecting to a packed-bed wet gas scrubber. Scrubber neutralizes SO₂, lead fume and acid gases from cupellation. Includes recirculating pump, dosing port, mist eliminator and drain.
| Hood Width | 2400 mm | Hood Depth | 1000 mm |
| Duct Dia. | 250 mm | Duct Material | 316 stainless steel |
| Scrubber H | 1600 mm | Sump Vol. | 60 L |
| Target Gases | SO₂, Pb fume, HF | Recirculation | Integral 40 L/min pump |
| Electrical | 240V / 3 kW total | Compliance | AS/NZS 2243.8 |
MODULE SUMMARY — SKU: AVI-MLM-001
| ITEM | QTY | SKU | KEY SPEC |
|---|---|---|---|
| Fire Assay Fusion Furnace | 1 | AVI-FF-25CR | 25-place, 1150°C |
| Cupellation Furnace | 1 | AVI-FF-25CU | 25-place, 980°C |
| Crucible Loader Tray | 2 | AVI-CLT-25 | 25-place, 5×5 grid |
| Cupel Load Tray | 2 | AVI-CUT-25 | 25-place, 5×5 grid |
| Compact Dust Collector | 1 | AVI-DC-SML | HEPA, 500–1000 m³/h |
| Gas Scrubber + Hood & Duct | 1 | AVI-GS-HOOD | SO₂/Pb fume, 2400 mm hood |