Precision at its Finest: Elevate Your Lab Experiments with Global Lab Supplies
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● Suit to coal and ore whose moisture is more than 15%.
● Milling type crushing offers efficient discharging.
● Crushing large moisture samples without moisture lose and with uniform output and high efficiency.
● Plug-in sieve plates ensure convenient cleaning and maintenance.
● Fully sealed cabinet design offers safe and dust free operation.
● Low noise.
Cupel is a shallow, porous crucible with approximately 96% magnesia. It is especially used to separate gold, silver, and precious metals from lead buckles in the process of Pb-Fire assay. By using high-quality raw materials and scientific formulas, GLS’s fire assay magnesia cupel has a smooth surface, high mechanical strength, and will not crack and pit during high-temperature cupellation.
• Easy to maintain and operate.
• Door panel for easy access to transformer.
• Fast and accurate temperature control ensures consistent and stable temperature.
• Built to industrial standards and compatible with multipour and multiload system.
• Pneumatic rising door operated by food pedal reduces thermal radiation hurt and risk to operator.
The Fire assay fusion chamber furnace is a kind of equipment used to melt crushed ore samples (containing precious metal) with mixed fluxes (powdered lead oxide) in a refractory clay crucible.
GLS supplies various types of laboratory fusion furnaces for fire assay. The industrial-sized, large-capacity furnace chamber can be loaded with multiple crucibles, which significantly improves the efficiency of laboratory smelting and testing of ore samples and reduces the frequency of manual operations.
Zirconium is our most effective crucible material for fusions using sodium carbonate or sodium peroxide. It is an excellent low-cost replacement for platinum. And, based on an average of 100 fusions per crucible, it is more cost effective than less expensive porcelain or steel crucibles.
Other advantages of zirconium are its complete resistance to the action of most solvents of all concentrations such as nitric, hydrochloric, sulfuric and perchloric acids.
This allows the fusions to be dissolved out of the crucible completely with little or no contamination of the sample. Alkaline solvents such as ammonium hydroxide, acetate sulfide, carbonate and (Na, K) hydroxide, sulfide, carbonate and cyanide are also without effect.
Zirconium exhibits superb corrosion resistance in most organic and inorganic acids, salt solutions, strong alkalis and a few molten salts.
The passive oxide film (corrosion barrier) is stable in both reducing and oxidizing conditions. Zirconium is excellent in both acid and base solutions.
The temperature limit for use in air is
about 450˚C to 500˚C.
Gold Smelting Crucibles As Name of Fire Assay Crucibles,have a higher than normal resistency to cracking under fire assay conditions. Our crucibles and refractory products are used in laboratories throughout international marketplace. Our Crucibles can be used for 3-5 times. We have a variety of shapes and sizes available to cater to specifications required.
GLS high-performance Pulverizer Mill, designed for efficient sample preparation. This industrial-grade equipment utilizes electric power to drive the mill platform, producing the desired mesh sample. With its robust construction and advanced features, our Pulverizer Mill is an ideal solution for various laboratory and industrial applications.