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12 Hole Magnesia Cupel Brick Multi Cavity Fire Assay Batch Gold Analysis
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12 Hole Magnesia Cupel Brick Multi Cavity Fire Assay Batch Gold Analysis
  • name
  • name
  • name

12 Hole Magnesia Cupel Brick Multi Cavity Fire Assay Batch Gold Analysis

MOQ: 1 Set
Price: Negotiate
Standard Packaging: Export-grade carton with shock-proof foam, custom packaging available
Delivery Period: 15-30 working days
Payment Method: T/T,L/C
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
Y&X
Certification
ISO 9001:2015
Model Number
Cupel Block
Product Name:
Fire Assay Cupel & Cupel Block
Material:
Magnesium Oxide (MgO)
MgO Content:
96%
Cavity Layout:
4 X 3 (12HB) / 6 X 2 (12HB(L))
Overall Size (12HB):
80 X 60 X 20 Mm
Overall Size (12HB(L)):
165 X 60 X 20 Mm
Top Hole Diameter:
14 Mm (12HB) / 22 Mm (12HB(L))
Hole Depth:
7 Mm
Approx. Weight:
204 G (12HB) / 375 G (12HB(L))
Working Temperature:
About 900 C
Highlight:

12 hole magnesia cupel brick

,

multi cavity fire assay brick

,

gold analysis cupel brick

Product Description
12 Hole Magnesia Cupel Brick for Batch Fire Assay Gold and Silver Testing
The Y&X cupel brick is the multi-cavity upgrade of the classic single cupel. Built as a refractory brick with independently machined round cup holes, each hole works exactly like one single cupel, so a laboratory can run a whole batch of samples in one cupellation cycle. This 12 hole model processes up to 12 samples per run.
12 Hole Magnesia Cupel Brick for fire assay testing
Product Highlights
  • 96% high purity MgO formula with a special fluxing agent for superior absorption
  • Absorbs more than 70% of its own weight in lead oxide (PbO)
  • No cracking, pitting or lead spitting during cupellation
  • Each cavity performs identically to a single cupel, for batch consistency
  • One-piece brick body heats uniformly and reduces loading-position temperature deviation
  • Excellent thermal shock resistance, ready to use without pre-drying
  • Not affected by atmospheric humidity, no freezing tendency in any climate
  • Higher cupellation capacity per unit of furnace space
  • In-house laboratory quality testing with traceable batches
  • Custom cavity counts from 4 to 24 holes and custom packaging available
Cupel vs Cupel Brick Comparison
Magnesia Cupel: Single round cupel, 1 sample per run, flexible and economical for small sample volumes.

Cupel Brick: Multi-cavity rectangular brick, up to 24 samples per run, uniform heating, ideal for large sample volumes and standardized batch processing.
Comparison of cupel brick models and specifications
Full Magnesia Cupel Brick Series Specifications
All dimensions in mm. Weight values are approximate. "--" means top and bottom dimensions are identical for that model. Models with values in the bottom / boss / bevel columns have a beveled profile.
Magnesia cupel brick specification chart and dimensions
Model Holes Hole Layout (L x W) Top L (mm) Bottom L (mm) Top W (mm) Bottom W (mm) Height (mm) Top Hole Dia. (mm) Hole Depth (mm) Boss Height (mm) Bevel Height (mm) Weight (approx. g)
4HB42 x 248--48--20186.5----97
4SAHB42 x 280--80--26309----321
6HB63 x 276.5--51--2020.58----150
6HB(T)63 x 28272605020227614184
10HB105 x 2138128605020227614307
12HB124 x 380--60--20147----204
12HB(L)126 x 2165155605020227614375
14HB147 x 2179--54--20207.5----367
21HB217 x 3172162766620227614476
24HB246 x 4124114847420167614402
24HB(U)246 x 4165--120--2021.57----830
12 hole models: 12HB -- cavity layout 4 x 3, overall size 80 x 60 x 20 mm, top hole diameter 14 mm, approx. weight 204 g. 12HB(L) -- cavity layout 6 x 2, overall size 165 x 60 x 20 mm, top hole diameter 22 mm, approx. weight 375 g.
Applications
Large gold mine assay laboratories, high volume commercial testing institutions and precious metal refineries that need standardized batch cupellation with maximum efficiency. Pairs well with a Y&X cupellation furnace for a complete batch cupellation workflow.
Y&X focuses on the fire assay analysis field and supplies a full range of high purity magnesia cupels and cupel bricks. Contact us for a quote or custom specification.
Frequently Asked Questions
Q: Cupel or cupel brick -- which should I choose?
A: A cupel is a single round dish for small or individual samples; a cupel brick is a multi-cavity block that cupels many samples per run. Both use the same 96% magnesia material and the same working principle. Under 20 samples per day, single cupels offer flexible pairing; for larger batches, a cupel brick is more efficient and provides a more uniform temperature field.
Q: Why choose a 12 hole cupel brick?
A: It processes up to 12 samples in one cupellation run, a practical step up from single cupels for medium volume laboratories. The one-piece brick heats uniformly and reduces temperature deviation between loading positions, improving consistency across a batch. Available in two layouts: 12HB (4 x 3 cavities, 80 x 60 x 20 mm) and 12HB(L) (6 x 2 cavities, 165 x 60 x 20 mm).
Q: Do cupel bricks need pre-drying before use?
A: No. Cupel bricks can be placed directly into the cupellation furnace without pre-drying. The high purity magnesia formula gives excellent thermal shock resistance, so a brick at room temperature can enter the approximately 900°C working environment without cracking, saving preheating time and energy. If stored in extremely humid conditions (relative humidity above 85%), drying at 105°C for 2 hours before use is recommended.
Q: How should cupel bricks be stored, and what is the shelf life?
A: They have low storage requirements; store them in a dry, ventilated place at room temperature. Unlike traditional bone-ash cupels, magnesia bricks are not affected by atmospheric humidity and will not freeze or degrade. Under proper storage they keep long term with unchanged performance, with a shelf life of more than 12 months under standard conditions.
Tags: 

Flame Atomic Absorption Spectrophotometer WFX-220,  

Atomic Absorption Spectrophotometer with warranty,  

WFX-220 spectrophotometer lab equipment

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Products
PRODUCTS DETAILS
Products

Laboratory Rock Crusher

Laboratory Disc Mill

Laboratory Grinding Mill

Lab Ball Mill

Laboratory Flotation Machine

Vibrating Screen Machine

Spiral Classifier

Gravity Separation Machine

Laboratory Vacuum Filter

Magnetic Separation Equipment

Concentration Equipment

Vertical Chemical Pump

Laboratory Rotary Kiln

Mineral Testing Machine

Mining Spare Parts

Fire Assay Laboratory Equipment

Blast Drying Oven
12 Hole Magnesia Cupel Brick Multi Cavity Fire Assay Batch Gold Analysis
  • name
  • name
  • name
12 Hole Magnesia Cupel Brick Multi Cavity Fire Assay Batch Gold Analysis
MOQ: 1 Set
Price: Negotiate
Standard Packaging: Export-grade carton with shock-proof foam, custom packaging available
Delivery Period: 15-30 working days
Payment Method: T/T,L/C
Detail Information
Product Description
Detail Information
Place of Origin
China
Brand Name
Y&X
Certification
ISO 9001:2015
Model Number
Cupel Block
Product Name:
Fire Assay Cupel & Cupel Block
Material:
Magnesium Oxide (MgO)
MgO Content:
96%
Cavity Layout:
4 X 3 (12HB) / 6 X 2 (12HB(L))
Overall Size (12HB):
80 X 60 X 20 Mm
Overall Size (12HB(L)):
165 X 60 X 20 Mm
Top Hole Diameter:
14 Mm (12HB) / 22 Mm (12HB(L))
Hole Depth:
7 Mm
Approx. Weight:
204 G (12HB) / 375 G (12HB(L))
Working Temperature:
About 900 C
Minimum Order Quantity:
1 Set
Price:
Negotiate
Packaging Details:
Export-grade carton with shock-proof foam, custom packaging available
Delivery Time:
15-30 working days
Payment Terms:
T/T,L/C
Highlight

12 hole magnesia cupel brick

,

multi cavity fire assay brick

,

gold analysis cupel brick

Product Description
12 Hole Magnesia Cupel Brick for Batch Fire Assay Gold and Silver Testing
The Y&X cupel brick is the multi-cavity upgrade of the classic single cupel. Built as a refractory brick with independently machined round cup holes, each hole works exactly like one single cupel, so a laboratory can run a whole batch of samples in one cupellation cycle. This 12 hole model processes up to 12 samples per run.
12 Hole Magnesia Cupel Brick for fire assay testing
Product Highlights
  • 96% high purity MgO formula with a special fluxing agent for superior absorption
  • Absorbs more than 70% of its own weight in lead oxide (PbO)
  • No cracking, pitting or lead spitting during cupellation
  • Each cavity performs identically to a single cupel, for batch consistency
  • One-piece brick body heats uniformly and reduces loading-position temperature deviation
  • Excellent thermal shock resistance, ready to use without pre-drying
  • Not affected by atmospheric humidity, no freezing tendency in any climate
  • Higher cupellation capacity per unit of furnace space
  • In-house laboratory quality testing with traceable batches
  • Custom cavity counts from 4 to 24 holes and custom packaging available
Cupel vs Cupel Brick Comparison
Magnesia Cupel: Single round cupel, 1 sample per run, flexible and economical for small sample volumes.

Cupel Brick: Multi-cavity rectangular brick, up to 24 samples per run, uniform heating, ideal for large sample volumes and standardized batch processing.
Comparison of cupel brick models and specifications
Full Magnesia Cupel Brick Series Specifications
All dimensions in mm. Weight values are approximate. "--" means top and bottom dimensions are identical for that model. Models with values in the bottom / boss / bevel columns have a beveled profile.
Magnesia cupel brick specification chart and dimensions
Model Holes Hole Layout (L x W) Top L (mm) Bottom L (mm) Top W (mm) Bottom W (mm) Height (mm) Top Hole Dia. (mm) Hole Depth (mm) Boss Height (mm) Bevel Height (mm) Weight (approx. g)
4HB42 x 248--48--20186.5----97
4SAHB42 x 280--80--26309----321
6HB63 x 276.5--51--2020.58----150
6HB(T)63 x 28272605020227614184
10HB105 x 2138128605020227614307
12HB124 x 380--60--20147----204
12HB(L)126 x 2165155605020227614375
14HB147 x 2179--54--20207.5----367
21HB217 x 3172162766620227614476
24HB246 x 4124114847420167614402
24HB(U)246 x 4165--120--2021.57----830
12 hole models: 12HB -- cavity layout 4 x 3, overall size 80 x 60 x 20 mm, top hole diameter 14 mm, approx. weight 204 g. 12HB(L) -- cavity layout 6 x 2, overall size 165 x 60 x 20 mm, top hole diameter 22 mm, approx. weight 375 g.
Applications
Large gold mine assay laboratories, high volume commercial testing institutions and precious metal refineries that need standardized batch cupellation with maximum efficiency. Pairs well with a Y&X cupellation furnace for a complete batch cupellation workflow.
Y&X focuses on the fire assay analysis field and supplies a full range of high purity magnesia cupels and cupel bricks. Contact us for a quote or custom specification.
Frequently Asked Questions
Q: Cupel or cupel brick -- which should I choose?
A: A cupel is a single round dish for small or individual samples; a cupel brick is a multi-cavity block that cupels many samples per run. Both use the same 96% magnesia material and the same working principle. Under 20 samples per day, single cupels offer flexible pairing; for larger batches, a cupel brick is more efficient and provides a more uniform temperature field.
Q: Why choose a 12 hole cupel brick?
A: It processes up to 12 samples in one cupellation run, a practical step up from single cupels for medium volume laboratories. The one-piece brick heats uniformly and reduces temperature deviation between loading positions, improving consistency across a batch. Available in two layouts: 12HB (4 x 3 cavities, 80 x 60 x 20 mm) and 12HB(L) (6 x 2 cavities, 165 x 60 x 20 mm).
Q: Do cupel bricks need pre-drying before use?
A: No. Cupel bricks can be placed directly into the cupellation furnace without pre-drying. The high purity magnesia formula gives excellent thermal shock resistance, so a brick at room temperature can enter the approximately 900°C working environment without cracking, saving preheating time and energy. If stored in extremely humid conditions (relative humidity above 85%), drying at 105°C for 2 hours before use is recommended.
Q: How should cupel bricks be stored, and what is the shelf life?
A: They have low storage requirements; store them in a dry, ventilated place at room temperature. Unlike traditional bone-ash cupels, magnesia bricks are not affected by atmospheric humidity and will not freeze or degrade. Under proper storage they keep long term with unchanged performance, with a shelf life of more than 12 months under standard conditions.
Tags: 

Flame Atomic Absorption Spectrophotometer WFX-220,

Atomic Absorption Spectrophotometer with warranty,

WFX-220 spectrophotometer lab equipment

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