Sheet 506 / 1

Page  ► 2

®     Cupels & Blocks

11-Jan-18

C506_1_Mabor.doc

CUPELLATION OF PRECIOUS METALS

 

Made with high quality magnesia, MABOR® cupels and blocks are renowned for their fine surface and constancy in weight and size, and are used by gold mines, precious metal refiners, alloy melters, assay offices, hallmarking, geological, test & umpire laboratories worldwide.

They provide security and will quickly absorb great amounts of litharge without cracking or pitting. The prill or bead will not adhere to their surface. Cupellation temperature and time are reduced and losses are minimal, achieving higher accuracy and better yields.

1. Single Cupels - Absorption (PbO) ~ 70% wt / wt @ 980º C

 ● A wide range of sizes cover all assayers’ needs
 ● Each size will suck in swiftly and without leaking the specified charge

Widest Assortment

Gold & Silver
Alloys
◄

 

 

 

Full
Fire
 Assay
►

The right Cupel for every Assayer's Job

   ● Gold & Silver Alloys   Lead Foil + Sample + Inquart

 ○ From # 1    to  # 2X: ►Silver analysis & microcupellation

 ○ From # 3    to  # 6:   ►Gold : bullion, white / yellow alloys

   ● Full Fire Assay              Lead Buttons

 ○ From # 7A  to  # 8S:  ►Ores, ashes, sweeps, scrap

 ○ From #   9  to  # 12:  ►Concentrates, electrolytic slimes     New►

 ○ From # 14  to  # PC:  ►Production of gold & silver

Size

Cu

pel

Cu

p

Wei

ght

Car

ton

Ref

Ø

H

Ø

Depth

Piece

Carton

Content

Price

#

m

m

m

m

g

kg

Piece

€

1

22

18.4

17.5

  4.3

13

19.5

1441

*

2X

24

16.3

19

  7

13

17.5

1296

*

3

26.3

17

21.3

  7

16.5

18.6

1080

*

4

30.4

18.2

25.4

  7.5

20

17.2

819

*

4A

27

22

24

  6

22

20.5

900

*

PM

27

24

23.4

  8

27.5

20.5

720

*

5

31.6

19.7

26.2

  7

24.5

18.5

728

*

6

36.3

21.2

26.4

  8.5

37.5

18

462

*

7A

39.7

28.5

31.2

11.8

59

18.5

300

*

7B

39.7

32

31.2

11.8

67.5

21.1

300

*

7X

39.7

35

31.2

11.8

76

23.6

300

*

8A

45.3

35

38

12.5

100.5

20.8

200

*

8S

44.0

40

38

14.0

107

20

180

*

9

51

29

40

10.5

109

21.7

192

*

9C

51

33.5

42

12

126

20.9

160

*

10

60

30.2

52.6

11.5

148.5

21.5

140

*

11

56.8

44

47.8

14.8

197

22.7

112

*

12

80.2

47

57.5

16.5

443

20.6

45

*

14

110

70

80

24

1187

19.7

16

*

15

150

130

120

40

4725

20.0

4

*

PC

254

161.6

184.7

55.4

16 kg

16.6

1

*

2. Bullion Blocks - Absorption capacity (PbO): ~ 8 g / hole

 ● Fully exploit Fire Assay's parallel processing capabilities
 ● Allow full scalability to mass analysis production stage
 ● Samples, duplicates, standards & blanks on same block
 ● High accuracy - samples undergo equal ambient conditions       New►
 ● Save time – reduce manipulation hazards                  ►Sq = 90º
 ● Stability is better due to larger base
 ● Assays keep original array – no misplace errors
 ● Ideal for mass analysis of same carat alloy samples
 ● Several bevelled blocks may be handled all at once

         ►TOOLS: Block Handling / Block Loading:          ►Bvl = 70º

                  ►Scoops (BS)      ►Forks (TF / BF)

                ►Trays (P)              ►Multi-Loaders (ML)                 New►

Size

Ed-

Dimensions

Cup

Weight

Carton

 ►Tools

Ref

ge

L

W

H

Ø

Dpt

Pc

Ctn

Cont.

Price

Ref

#

angle

 

mm

 

m

m

g

kg

pc

€

►BS►TF

 4·HB

Sq

 48

48

20

18

6.5

97

22.8

224

*

BS 4

4·SAHB

Sq

 80

80

26

30

9.0

321

19.8

60

*

BS 12

12·HB

Sq

 80

60

20

14

7.0

204

22.2

105

*

BS 12

14·HB

Sq

179

54

20

20

7.5

367

21.7

56

*

BS 14

6·HB·T

Bvl

81.5

60

20

22

7.0

184

22.8

120

*

TF 1

10·HB

Bvl

138

60

20

22

7.0

307

19.2

60

*

TF1 /BF10

12·HB·L

Bvl

165

60

20

22

7.0

375

19.1

48

*

TF1 /BF12

18·HB

Bvl

147

76

20

22

7.0

400

21.3

42

*

TF2 /BF18

21·HB

Bvl

172

76

20

22

7.0

476

21.3

42

*

TF2 /BF21

24·HB

Bvl

124

84

20

16

7.0

402

20.3

48

*

-

 

 

10 HB►
Bevel

◄ 4 HB
Square

12 HB-L ►
Bevel

◄ 6 HB-T
Bevel

14 HB ►
 Square

◄ 12 HB *
Square
Microcupellation

Minimize Time / Losses

● Our Cupels "drive" at < 1000ºC :
● Shorter cupellation time
● Reduced Au / Ag losses

● No need to preheat

Load Straight to Furnace

Well layered cupel arrays :
“fork in”  directly  from  box  to  furnace

MABOR ® is a registered Trade M

ark of SEP (Pty) Ltd. (formerly Mabor Ltd. UK)

 

 

● Unaffected by atmospheric changes / moisture
● Quick absorption of large quantities of litharge
● Special range for micro-cupellation methods
● Manufacturing experience: 119 years !
● Continuous R & D + Testing in own assay lab
● ISO 9001 - ISO 14001 – QM & EM Certificates

● Consistent low losses
● Reduced tendency to freeze
● Robust mechanical strength
● Perfect uniformity of quality
● No spitting of lead
● Latest manufacturing machinery

● Absorption ~70% cupel weight at 980ºC
● Quality immune to storage time
● 20-kg box easy to handle / store
● Beads easily removed
● Free from cracking and pitting
● Accuracy 5 times better than ICP

 

Cupellation :►Cupels ►Blocks ►Instructions ►Certificates ►Tools ►Consumables  –  Fire Assay: ►Crucibles ►Accessories ►Parting / Annealing

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