SINTYRON cupels fire assay cupel magnesium mabor bullion block

This product is a magnesium-based cupel used in fire assay processes to separate precious metals (like gold or silver) from impurities. The cupel absorbs oxides and slag, leaving pure bullion. It's typically made of magnesium oxide (MgO) or a mix with other materials for high-temperature resistance. The resulting purified metal forms a bullion block for further refining or analysis.

Email: sintyron@xtlceramic.com

Inquiry Now

Products Center

SINTYRON cupels fire assay cupel magnesium mabor bullion block

Fire assay ceramic cupel is removed from the furnace and the absorbed precious metals are recovered

by scraping the surface of the cupel. The remaining material is then analyzed to determine the purity

and concentration of the precious metals in the original sample.

Product Description

Cupels:

1.Made of Magnesite or Bone .

2.Used for smelting and assaying .

3.High thermal shock resistance .

Magnesia: ≥95%

Silica, Silicon dioxide: 0-5%

Property: High refractoriness(1100 centigrade degrees),rapid absorption(70%),and recovery

rate of 97%-98.5%,easy to use, without milling .

Specifications with cupels

1.Material:Magnesian and cement

2.For the analysis of non-ferrous and precious metals.

3.We are manufacturers of fire assay crucibles and magnesite and ash bone cupels. 4.We produce

several capacity crucibles and cupels and only use selected vrgin materials for production.

5.We have special packing for export and very competitive prices. 6.Our crucibles are high standard,

for repetitive assays and free of gold.

Item	A(mm) Top OD	B(mm) Height	C(mm) Bottom OD	D(mm) Top ID	E(mm) Inner Depth	Weight (g)	Qty/Case (pc)
XTL-6A	40	26	30	30-32	12-13	50-55	200
XTL-7A	40	30	30	30-32	11-15	58-60	200
XTL-8A	43-45	31-35	35-39	32-35	12-13	80-86	200
XTL-9A	50-52	31-35	39-43	39-41	11-15	120-123	120

cupel 60.jpg cupel 73.jpg cupel 74.jpg cupel 80.jpg cupel 82.jpg

Company Information

fire assay crucible (140).jpg

fire assay crucible (141).jpg

FAQ

Why us?
* Professional manufacturer since 1997.
* Strict quality control on production process and tolerance.
* Free samples available
* Customized production based on your drawing or specification
* On-time delivery and reliable support and service
* Inventory available for quick shipment
* We keep confidentiality of all the drawings and business information between us.
Are you a trading company or a manufacturer?
* We are a manufaturer.
Can you provide the free samples?
* Yes,we can offer free sample if we have it in stock,but the courier fee is to be collected.
Do you accept customized production based our specification?
* Yes,we offer OEM and ODM service. Just send us your drawing if you have it. If you don’t have a

drawing, just tell us your idea, we will work out the drawing for you.

What's the delivery time?
* 7 working days for standard products 30 days for customized products.
What is the MOQ?
* No limit to the quantity. We can offer the best proposal and solutions according to your condition.
What is the payment terms you accept?
* T/T,LC,Western Union,moneygram are acceptable.
How to deal with the faulty?
* Firstly, Our product are produced in strict quality control system and the defective rate will be less than 2%.
If there are problems with the product, we will provide free replacement.