Precision at its Finest: Elevate Your Lab Experiments with Global Lab Supplies
Bullion Blocks
Magnesia Bullion Block is a shallow, porous block with multiple holes, made from pure Magnesite, in which gold or silver can be refined or assayed by melting with a blast of hot air which oxidizes lead or other base metals.
Bullion Blocks are specifically designed to stand longer in the extreme heat of furnaces. These blocks are great heat conductors and high efficient to use.
These do not not crack or break over the course of time as well as demands no maintenance. Moreover, these Blocks are extremely durable and available in various specifications.
• With extremely low Gold and silver content, can get more accurate test results,
• High-temperature resistance and resistance to thermal shock
• Can be used 3-5 times for the crucibles for fire assay.
• Made of high-quality magnesia, Bone Ash, etc.
• Widely Used for smelting and assaying
• Free samples are available.
• High casting density.
Related Products
Cupellation Furnace
• 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.
Fusion Furnace
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.
Furnace Chamber And Tile
GLS has various shapes of horseshoe-shaped furnaces, furnace tubes, electric furnace tile plates, rails, large-span muffle furnaces, etc. Used in various heat treatment furnaces, such as muffle furnaces, enamel sintering furnaces, diffusion furnaces, slats of various kilns, flameproof materials, etc.
Zirconium Crucibles [low form]
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.
Pulverizing Bowls
Pulverizing bowl: also called pulverising mill grinding bowl, pulverizer mill bowl. It is a grinder that grinds coarse material into fine powder. When working, put the grinding bowl into the laboratory sample pulverizer or vibration grinder card slot. The motor drives the grinding bowl to eccentrically vibrate. After 2-6 minutes of work, the material can reach 80-300 mesh for testing.
Zirconium Crucibles [straight wall]
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.
High Temperature Muffle Furnace
The maximum temperature of the Muffle Furnace 100 places muffle furnace can be adjusted up to 1500°C. The heating speed is very fast by silicon-molybdenum elements. On the lifting door of the high-temperature muffle furnace, there is also an observation window for watching the cupellation of lead buttons. Observation windows are equipped with fire-resistant glass, which can protect personnel from high-temperature radiation.
Double Roller Crusher
● Rollers surfaces are with special treatment and do not stick to coal.
● Adjusting wheel with scale provides accurate rollers gap adjustment.
● Uniform output and high efficiency.
● Fully sealed cabinet design offers safe and dust free operation.
● Low noise and easy maintenance.
