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China
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Treatment
  GemLab LED microscope - maxxiLED-2
Treatment   Untreated-treated rubies-sapphires for study, reference and research
Book
  "The Heat Treatment of
Ruby-Sapphire-
Alchemy & Science"
by Ted Themelis
Articles   Read below interesting topics on gem treatments

Heat treatment technology
Heat treating ruby-sapphire
Beryllium detection with LIBS
Lead-filled rubies
Cranking up the heat
Treatment disclosure

A REMINDER “Forty years ago, I used to sell Ted’s first microscope and other accessories. Before his death, R.T. Liddicoate saId Ted Themelis was one of the three individuals whose ideas pose the greatest threat to the GIA.” Dr.W.Hanneman


FOR THE NOVICE: PLEASE READ & COMPREHAND THE FOLLOWING:

Our high temperature furnaces are designed to execute heating parameters provided by the operator for heat treating gems in various configuration modes. We do not sell the “know-how” technology for heating customer’s gemstones; the “know-how” technology must be developed by the end-user. We only sell our furnaces and related gem treatment equipment as per specifications, capabilities and limitations.
It is like selling a rice cooker: the user should know what type of rice to select, slow or fast heating-cooling, cooking temperature and time, water, and other ingredients to cook the rice as desired. It is a certain recipe, not applied to every kind of rice.
If you are novice in this subject, I suggest to read and understand my book "The Heat Treatment of Ruby & Sapphire" before thinking to buy any of the equipment offered for sale. Likewise, for the potential, but seriously dedicated end-user, I suggest to take my course #610 offered periodically in Bangkok before buying any gem treatment equipment.

DESIGNING & MAKING THE BEST GEM FURNACES IN THE INDUSTRY -from concept to reality
Based on our 37 years experience involved in the gem treatments we have concluded that the best design for heating ruby-sapphire and other gemstones is to use the vertical muffle configuration system for two important reasons:
a) to facilitate desired atmosphere conditions (or vacuum) and
b) to allow rapid/slow removal of the stones from the furnace.
These principles are implemented in our lab where the actual fabrication of these muffle furnaces takes place.Take a look in our lab.

1.Concept & simulation

2.Prototype & testing

3.Production


High Temperature muffle furnace model M50P-1700
High Temperature muffle furnace model M80P-1700
Mid-Temperature muffle furnace model V80-1200
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Mid-Temp. Combo muffle, box furnace model BV50-1200
High Pressure-Low Temperature reactor HPLT-400
Temp.indicator & alarm for gas combustion furnace
model TA-100
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