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.
