AVIMETAL

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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MODULE SKU: AVI-FAM-001

Dual-Furnace Fusion & Cupellation System — 25-Place Capacity Each
QTYITEM DESCRIPTIONSKU
1Fire Assay Fusion Furnace — 25-place crucibleAVI-FF-25CR
1Cupellation Furnace — 25-place cupelAVI-FF-25CU
225-Place Crucible Loader TrayAVI-CLT-25
225-Place Cupel Load TrayAVI-CUT-25
1Dust Collector — CompactAVI-DC-SML
1Gas Scrubber with Hood & Exhaust DuctAVI-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.

Width1000 mmDepth800 mm
Height1400 mmChamber Volume~120 L
Max Temp1150°CTemp ControlPID ±1°C
Capacity25 cruciblesLoadingFront-load tray
HeatingSilicon carbide elementsRamp Rate≤25°C/min
Electrical415V 3-phase / 18 kWComplianceCE / 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.

Width1000 mmDepth800 mm
Height1400 mmChamber Volume~100 L
Max Temp1000°COperating Temp900–980°C
Capacity25 cupelsLoadingFront-load tray
Air SupplyControlled bleed valveExhaustRear collar 150 mm dia.
Electrical415V 3-phase / 15 kWComplianceCE / 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.

Width750 mmDepth550 mm
Height40 mmCapacity25 crucibles, 5×5 grid
MaterialRefractory boardMax Temp1150°C
HandleHeat-resistant gripGuide SystemRail-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.

Width720 mmDepth520 mm
Height35 mmCapacity25 cupels, 5×5 grid
MaterialRefractory boardMax Temp1000°C
Recess Dia.45 mm standardGuide SystemRail-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.

Width600 mmDepth600 mm
Height1200 mmAirflow500–1000 m³/h
FiltrationHEPA cartridgeCleaningPulse-jet, auto
Inlet150 mm dia.Electrical240V / 2.2 kW
HousingMild steel, epoxyComplianceAS 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 Width2400 mmHood Depth1000 mm
Duct Dia.250 mmDuct Material316 stainless steel
Scrubber H1600 mmSump Vol.60 L
Target GasesSO₂, Pb fume, HFRecirculationIntegral 40 L/min pump
Electrical240V / 3 kW totalComplianceAS/NZS 2243.8

MODULE SUMMARY — SKU: AVI-MLM-001

ITEMQTYSKUKEY SPEC
Fire Assay Fusion Furnace1AVI-FF-25CR25-place, 1150°C
Cupellation Furnace1AVI-FF-25CU25-place, 980°C
Crucible Loader Tray2AVI-CLT-2525-place, 5×5 grid
Cupel Load Tray2AVI-CUT-2525-place, 5×5 grid
Compact Dust Collector1AVI-DC-SMLHEPA, 500–1000 m³/h
Gas Scrubber + Hood & Duct1AVI-GS-HOODSO₂/Pb fume, 2400 mm hood
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