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Gemlab Box Muffle Furnace Model B150-1200

Gemlab's model B150-1200 is a feather-weight, desktop furnace occupying minimum work space and it is the most economical

furnace designed by Ted Themelis. Model B150-1200 furnace employs muffle attachment of unparallel versatility and impeccable

design of its class not found anywhere in the industry. Depending on the configuration mode, rubies, yellow, pink sapphires,

and other gemstones may be loaded inbto the 150x150x150 heating chamber and heated to 1200oC in oxidizing environment

(oxy, nitro or premixed oxy-nitro), or in air, with/without chemical additives. Model B150-1200 can accept a 50 mm muffle tube

for vacum or reucing atmosphere can be achieved with the optional 2-gas purging atmosphere control apparatus purging forming

gas (8% hydrogen) mixed with nitrogen (optional) .

 

Three different modes of loading the crucible to heat-treat your gems (Model B150-1200)

Front-door heating-no muffle
Model M150-1200 is suitable for many heating applications where the basic requirement is heat. The rubies-sapphires are loaded via front door. The heating chambers fits two crucibles holding about 4,400 carats of rubies- sapphires. Fluxes may or may not be used.
.Direct gas purge - no muffle
In this configuration mode where oxidizing atmosphere is needed, direct purge of oxygen into the crucible is possible. This mode facilitates improved atmosphere conditions (oxidation only). The single crucible used in this mode holds about 2300 carats of rubies or sapphires.

Heating with Half-Muffle Tube
A half-muffle tube (COE Close-One-End), OD=50 mm, L=280 mm) is supplied for purging oxygen, nitrogen or premixed gases for full atmosphere control, using the atmosphere conro apparatus. It can also be used for vacuum operation. One single crucible may be loaded in the muffle from the top. Fluxes may or may not be used

THREE DIFFERENT HEAT TREATMENT CONFIGURATION MODES

 

 

 


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