1200°C Fire Assay Fusion Furnace for Gold Silver Ore Laboratory Testing

Product Introduction

1200°C Fire Assay Fusion Furnace

The Fire Assay Fusion Furnace is designed for high-temperature sample fusion in gold, silver and precious metal assay laboratories.

During fire assay, prepared samples are mixed with suitable fluxes and placed in refractory crucibles. The furnace provides the high-temperature conditions required to melt the sample and flux mixture, allowing precious metals to be collected for subsequent separation and cupellation.

The furnace supports a maximum operating temperature of 1200°C and is equipped with silicon carbide heating elements, electronic temperature control and a pneumatic lifting door.

Multiple furnace chamber and loading configurations are available to meet different laboratory sample throughput requirements.

Key Features

1. Maximum Temperature up to 1200°C

Designed for high-temperature fusion during fire assay sample preparation.

2. High-quality Heating Elements

Silicon carbide heating elements provide the heat required for laboratory fusion operations.

3. Electronic Temperature Control

Electronic temperature control allows operators to set and control the furnace temperature according to the assay procedure.

4. Pneumatic Lifting Door

The pneumatic door structure simplifies furnace opening and closing during crucible loading and unloading.

5. Multiple Capacity Options

Different furnace chamber sizes and crucible-loading configurations are available for laboratories with different sample throughput requirements.

6. Designed for Fire Assay Laboratories

Suitable for the fusion stage of gold, silver and other precious-metal sample preparation.

Technical Specifications

Working Principle

In the fire assay process, a prepared sample is mixed with suitable fluxes and placed in a refractory crucible.

The crucible is loaded into the fusion furnace and heated at high temperature until the sample and flux mixture becomes molten.

During fusion, precious metals are collected into the metallic phase while other components of the sample form slag.

After fusion, the molten material is removed from the furnace and poured into a mold for cooling. The resulting lead button is then separated from the slag and transferred to the cupellation stage for further processing.

Applications

The Fire Assay Fusion Furnace is suitable for precious metal assay and mineral testing applications involving:

• Gold ore
• Silver ore
• Mineral concentrates
• Geological samples
• Metallurgical samples
• Precious-metal-bearing materials

Typical users include:

Mining laboratories · Assay laboratories · Mineral testing laboratories · Metallurgical laboratories

Fire Assay Process

Sample Preparation → Flux Mixing → Fusion → Cupellation → Final Determination

Fusion ← Fire Assay Fusion Furnace

Related Fire Assay Equipment

A complete fire assay laboratory may also use:

• Fire Assay Cupellation Furnace
• Clay Crucibles
• Cupels
• Flux Dispensing Equipment
• Crucible Mixing Equipment
• Pouring Molds
• Crucible Handling Tools

FAQ

Q1: What is a fire assay fusion furnace used for?
It is used to heat and fuse prepared samples with fluxes during the fusion stage of fire assay.

Q2: What is the maximum furnace temperature?
The maximum operating temperature is 1200°C.

Q3: Are different furnace capacities available?
Yes. Different furnace chamber and crucible-loading configurations are available according to laboratory throughput requirements.

Q4: What happens after the fusion process?
After fusion, the lead button is separated from the slag and normally transferred to the cupellation stage for further precious-metal separation.

About Y&X

Y&X Beijing Technology Co., Ltd. provides laboratory equipment for mineral processing, sample preparation and mineral analysis.

Our equipment solutions cover crushing, grinding, screening, mineral processing testing and fire assay laboratory applications. Equipment configurations can be selected according to sample type, laboratory capacity and testing requirements.