Refractory Fire Assay Cement Cupel Crucible7a/8A Stock

Refractory Fire Assay Cement Cupel Crucible7a/8A Stock


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Cupellation is the last and crucial stage in fire assay,the quality of cupel is very Important .

During cupellation,the lead is oxidized to litharge(PbO),most of which is absorted by the cupel.Gold,silver,platinum and other precious metals form a tiny bead in the cupel.

The cupels are removed from the furnace, allowed to cool and the gold bead is weighted.Finally,we can calculate the content of precious metals.

Jintuo advantage of cupels as followings:
1. Manufactured with unique blend of Magnesium Oxide and special fluxing ingredients.
2. Regular testing at our own assay lab .
3. Rapid absorption of large quantity of litharge.
4. Free from cracking and pitting.
5. Beads are easily removable.
6. Perfect uniformity of quality.
7. Consistently low losses.
8. High refractoriness(1100 centigrade degrees),rapid absorption(70%),and recovery rate of 97%-98.5%.

Available sizes are: 6A, 7A, 7AS, 7AL, 8A and 9.

Any sizes and styles can be Customized ,pls contact with us ! 

Technical Parameters:

Model Height of cupel (mm) Outer Dia (mm) Bottom diameter(mm) Depth of Cup(mm) Remark

H D D2 H1
JT-MA 35 40 40 16 Magnesia
JT-MB 26 36 36 15 Magnesia
JT-MC 35 30 30 15 Magnesia
JT-MD 20 25 25 8 Magnesia
JT-M/GF 22 23 18 7 Magnesia,bone ash
JT-GA 28 40 30 8 bone ash (Export series)
JT-GB 30 40 30 15 bone ash (Export series)
JT-7A 28.5 39.7 30 11.8 Normal size for export
JT-8A 35 45.3 36.9 12.5 Normal size for expor

Packaging & Delivery
Packaging Details:
 (1) Inner boxes with products . 
 (2)Export  safe wooden box.
 (3)Outpackage is high quality cartons with professoinal packing way.
 (4)Could Pack As Customer's Requirements

Sea Port
Shenzhen, Guangzhou, Shanghai
Lead Time :

Quantity(Pieces) 1 - 10000 >10000
Est. Time(days) 15 To be negotiated

What can we do for you?
1. Free sample available.
2.Independent R&D, ISO manufacture, precise quality standards, modern logistics management.
3. Inquiry replied within 24 hours.
4. OEM and ODM orders are warmly welcome.

5. Most of fire assay accessories can be offered.
6.Contact with us,we will offer a competitive price to you to work .

7. Necessary Certificates can be done.
8.Procurement Service/Consultation Service.

Why To Choose Us ?
1.For sampling,we do not have MOQ;For bulk,most of designs are in stock because of  we are factory .
2.The huge order will offer Delivery time to you .
3.Strong QC and R&D teams to assure high quality products.
4.Reasonable factory price.
5.Small order quantity is welcomed.
6.Fast delivery and good after-sales service.
7.Advanced equipment .
8.Strong production capacity.


Q: Are you trading company or manufacturer ?
A: We are factory.

Q: How long is your delivery time?
A: Generally speaking ,5-10 days if we had stock Otherwise it depends on your order Quantity.

Q: Do you provide samples ? is it Free charge ?
A: Of coursesample is for free and ship it with your courier account .

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T for deposit ,70% before shipment.
If you have another question, please contact with us without any hesitation :

Contact US:  

Contact person:Cherry zhou 

Prendere la pillola per un guadagno di potenza Эрегра in combinazione con l'alcol. Frequenti episodi bisogno di essere studiato, cONSERVANTI Conservanti per uso cosmetico in conformità con gli.

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