SMALL CLAY GRAPHITE CRUCIBLES – MELTING & CASTING PRECIOUS METALS
We supply Ceramic bonded clay graphite Crucibles manufactured by plastic forming techniques to melt precious metals.
- Used to melt gold and silver alloys at temperatures between 800ºC and 1300ºC
- Clean melting.
- Good thermal conductivity.
- Good resistance to fluxes.
- High refractoriness.
- Not wetted by molten metals
- Good erosion resistance
Below is the range of graphite cruclbles that we can supply:
FORM A | Capacity Gold / kg | Capacity Silver / kg | Brimful volume (L) | Height (mm) | Diameter (mm) | Picture |
---|---|---|---|---|---|---|
A1 | 2 | 1.2 | 0.13 | 80 | 70 | |
A1.5 | 3 | 1.9 | 0.2 | 86 | 80 | |
A2 | 4 | 2.5 | 0.26 | 105 | 87 | |
A3 | 6 | 3.7 | 0.4 | 110 | 95 | |
A4 | 8 | 5 | 0.53 | 120 | 105 | |
A6 | 12 | 7.2 | 0.79 | 135 | 120 | |
A8 | 16 | 10 | 1.06 | 165 | 125 |
CLAY-GRAPHITE CRUCIBLES – RECYCLING & REFINING OF PRECIOUS METALS
Ceramic bonded clay graphite Crucibles are manufactured by plastic forming techniques. Typical Metal Casting Temperatures between 400°C – 1400°C
- Suitable for melting all non-ferrous metal alloys, both precious metals and base metals except those containing more that 30% nickel (Ni), chromium (Cr) or iron (Fe).
- Also used in recovery operations by precious metals recyclers
- Clean melting
- Low dross adhesion.
- Good resistance to fluxes
- Not wetted by molten metals
- Good erosion resistance
- High refractoriness
- Good thermal conductivity
- Thermal shock resistance
- High mechanical strength
FORM A | Capacity Brass (kg) | Brimful Volume (L) | Heigt (mm) | Top Diameter (mm) | Bottom Diameter (mm) |
---|---|---|---|---|---|
A5 | 5 | 0.7 | 150 | 120 | 85 |
A10 | 10 | 1.3 | 160 | 130 | 90 |
A12 | 12 | 180 | 150 | 100 | |
A16 | 16 | 2.1 | 215 | 165 | 110 |
A20 | 20 | 2.6 | 230 | 180 | 130 |
A25 | 30 | 4 | 250 | 210 | 155 |
A40 | 40 | 5.3 | 295 | 240 | 185 |
A50 | 50 | 6.6 | 300 | 260 | 190 |
A60 | 60 | 7.9 | 335 | 270 | 200 |
A80 | 80 | 11 | 390 | 295 | 230 |
A100 | 100 | 13 | 420 | 330 | 250 |
A120 | 120 | 16 | 430 | 340 | 250 |
A150 | 150 | 20 | 440 | 360 | 290 |
A200 | 200 | 26 | 490 | 395 | 300 |
A250 | 250 | 33 | 560 | 440 | 350 |
A300 | 300 | 40 | 630 | 460 | 350 |
A400 | 400 | 53 | 710 | 500 | 380 |
A500 | 500 | 66 | 780 | 550 | 425 |
A600 | 600 | 79 | 700 | 600 | 400 |
A700 | 700 | 93 | 690 | 650 | 370 |
A800 | 800 | 106 | 680 | 700 | 550 |
A1000 | 1000 | 132 | 800 | 710 | 550 |