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Complete Fire Assay Laboratory by Cupellation

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Introduction to Assaying



The assaying process is a necessary step to determine the quantity of precious metals present in an alloy. Cupellation is one operation of the assay process in which a sample of gold, wrapped in lead foil, is melted in a special crucible known as a cupel: this cupel has the capacity of absorbing the non-precious metals contained in the gold alloy. The weight of the gold alloy sample is usually about 250/1000. Although this is the most ancient method to determine the purity of an alloy, assaying by means of cupellation gives greater precision than more modern methods (fluorescent or x-ray spectrophotometry) and is considerably less expensive.

Consisting of:

  • COLUMN DRILLING PRESS TYPE KI FOR ASSAY SAMPLE DETACHING
    • ON/OFF SWITCH, PULLEY SYSTEM COVER, SCREW.
    • SLIDE ROD SCREW, SLIDE ROD.
    • PILLAR LOCKING HANDLE,TABLE LOCKING NUT.
    • CHUCK,COLLAR,SAFETY GUARD, LIFT HANDLE.
    • DRILL LIFT, DEPTH STOP.
    • S/STEEL BOX TO RECOVERY THE ASSAY DETACHMENT  DURING THE DRILLING OPERATION
    • MAINS VOLTAGE V   230
    • MAINS FREQUENCY HZ   50
    • NO LOAD SPEED MIN-  600 – 2,500
    • NUMBER OF DRILLING SPEEDS: 5
    • CHUCK CAPACITY mm   13
    • PILLAR HEIGHT mm   580ABSORBED POWER: 350 Watt
    • OVERALL DIMENSIONS:210x470x580h mm
    • PRICED FOR €340,00 Euros
 
  • VIBRATION DUMPING TABLE FOR ELECTRONIC SCALES
    • COMPLETE WITH MARBLE PLANE STANDING OVER SPECIAL
    • RUBBER SMALL BLOCKS.
    • DIMENSIONS:900x750x900h mm
    • PRICED FOR €920,00 Euros
 
  • ELECTRICAL CUPPELLATION FURNACE
    • TECHNICAL FEATURES:
    • 3 COMMUTATORS EACH ONE TO CONTROL 2 SILITE RODS POWER SUPPLY.
    • 3 AMPEROMETERS EACH ONE TO CONTROL 2 SILITE RODS POWER CONSUMPTION.
    • 1 CARBORUNDUM MUFFLE, INTERNAL SIZE 170x225x105h mm
    • 6 SILITE RODS.
    • 1 AUTOMATIC SYSTEM TO MAINTAIN THE T°DURING THE NIGHT.
    • FUMES DISCHARGE PLACED IN THE REAR SIDE OF THE FURNACE.
    • IRON FUMES EXIT PIPE COMPLETE WITH MANUAL DISCHARGE SYSTEM TO REMOVE THE LEAD RESIDUALS PRODUCED IN THE PROCESS
    • FUMES SUCTION HOOD PLACED IN THE FRONT AND REAR SIDE OF THE FURNACE.
    • FURNACE BASAMENT 1000h mm WHICH CONTAINS ALL THE ELECTRICAL COMPONENTS. DIGITAL THERMOREGULATOR WITH N°2 SET POINTS
    • WEEKLY PROGRAMMABLE TIMER.
    • WORKING T:1250 C
    • 1 REFRACTORY PLATE 16×22,5x10h mm (APPROX 6×9″)
    • LONG THONGS FOR CUPELS.
    • TOTAL ABSORBED POWER: 8 Kw
    • OVERALL DIMENSIONS: 850x850x1600h mm
    • PRICED FOR €12.650,00 Euros
   
  • WORKING BENCH FOR ASSAYS COMPLETE WITH MOTORISED ROLLING MILL AND ANNEALING PLATE
    • MOTORIZED ROLLING MILL FOR PLATE.
    • DEVICE TO PUSH THE SAMPLE THROUGH THE ROLLS.
    • S/STEEL PLANE FOR HAMMERING THE SAMPLE.
    • REFRACTORY PLATE FOR ANNEALING THE SAMPLE.
    • GAS TORCH FOR ANNEALING THE SAMPLE.
    • USED CUPELS DISCHARGING HOLE.
    • MAIN SWITCH BOARD.
    • SAFETY BUTTON TO STOP THE ROLLING MILL.
    • PEDAL TO RUN THE ROLLING MILL
    • TOTAL ABSORBED POWER: 0,75 Kw.
    • OVERALL DIMENSIONS:1210x650x1390h mm
    • PRICED FOR €5.700,00 Euros
 
  • 12 POSITIONS CHEMICAL PARTING HOOD FOR PRECIOUS METALS ASSAY COMPLETE WITH FUMES WASHING SYSTEM
    • 2 SIX POSITION HEATERS 1,3 Kw EACH FOR KJELDAL FLASKS.
    • 2 SUCTION BOXES WITH 6 HOLES EACH ABOVE THE KJEDHAL FLASKS HEATERS.
    • 1 HEATER FOR NARROW NECK BEAKERS:1,5 Kw
    • WASHING SYSTEM FOR ACID FUMES POSITIONED IN THE REAR PANNEL OF THE HOOD WITH ACID PROOF SPRAYERS
    • ACID-PROOF LIGHTNING: 100 Watt.
    • 12 KJELDHAL FLASKS 100 cc EACH.
    • 2 NARROW NECK BEAKERS 500 cc EACH.
    • 1 FUNNEL FOR ACID LOADING.
    • 1 PINCER FOR KJELDHAL FLASKS.
    • 1 MANUAL TIMER.
    • SUCTION FAN WITH BUTTERFLY VALVE FOR FUMES.
    • WORKING PLANE 1500x500mm WITH BASIN.
    • BASIN DISCHARGE SYSTEM COMPLETE WITH BY-PASS VALVES FOR EXTERNAL DISCHARGE INTO RECOVERY TANK OR DIRECTLY IN THE EMERGENCY TANK OF THE HOOD.
    • EMERGENCY TANK TO RECOVERY EXHAUSTED SOLUTION (AgNO3) PLACED UNDER THE BASIN.
    • BASEMENT WITH DRAWERS AND FRONT PANNEL
    • MAIN SWITCHBOARD TO CONTROL ALL FUNCTIONS.
    • TOTAL ABSORBED POWER: 4 Kw. APPROX.
    • OVERALL DIMENSIONS:2200x620x1900h mm.
    • PRICED FOR €9.700,00 Euros
 
  • RECYCLING TANK FOR WASHING FUMES COMING FROM THE ASSAY HOOD
    • TANK MADE OF PP WITH 10 mm THICKNESS.
    • INTERNAL REINFORCEMENT.
    • 1 MAGNETIC PUMP.
    • VARIOUS CONNECTIONS LIKE: BALL VALVE,ELBOWS, COUPLINGS, NIPLES, TEE ETC.
    • 1 LEVEL
    • EXTRACTABLE COVER COMPLETE WITH HANDLE.
    • ABSORBED POWER:0,25 Kw
    • OVERALL DIMENSIONS:500x500x750h mm
    • PRICED FOR €1.500,00 Euros
 
  • SMALL ELECTRICAL FURNACE FOR ANNEALING GOLD SAMPLE IN 33×33 CRUCIBLE
    • MAX. TEMPERATURE:1100°C.
    • MUFFLE DIMENSIONS: 210x320x145h mm
    • HETING BY MEANS OF HIGH QUALITY KANTHAL ELEMENTS.
    • THERMOCOUPLE AND THERMOREGULATOR.
    • POWER SUPPLY: 220 V – SINGLEPHASE
    • TOTAL ABSORBED POWER: 4 Kw
    • OVERALL DIMENSIONS: 500x750x650h mm
    • PRICED FOR €2.400,00 Euros
 
  • FUMES WASHING TOWER Ø 600 mm.  FOR WASHING ACID EMISSIONS FROM PRECIOUS METALS CHEMICAL PROCESSES
    • 1 BASAMENT USED AS RECYCLING TANK.
    • 1 RECYCLING PUMP:0,25 Kw.2750/3350 rpm
    • 1 FUMES WASHING SECTION FILLED OF SPECIAL RINGS.
    • 1 SUCTION FAN: 0,55 Kw – 2700 rpm.
    • 1 MAIN SWITCHBOARD
    • TOTAL ABSORBED POWER: 0.8 Kw. APPROX.
    • OVERALL DIMENSIONS: 700x1500x2800h mm.
    • PRICED FOR €6.700,00 Euros
 

Total Lab Price  € 39.910,00

Plus Packing, Crating and Loading Container

 

Listed price subject to manufacturers price increases without notice.



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OR E-Mail David Gold at DGOLD@GoldMachinery.com

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[ Mailing Address | Gold International Machinery, Corp | P.O. Box 998 Pawtucket, RI 02862 ]
[ Physical Address: | 136 Newell Avenue | (corner of Thurston & Newell Sts.) | @Exit 26, Route 95 North | Pawtucket, RI USA 02860-0998 ]
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