SPECIFICATIONS:
VEF1700IN is a 1700 ° C atmosphere-controlled electrolytic furnace heated by induction. Two water-cold graphite electrodes are inserted in a 5"ID x 6" H graphite crucible. A maximum of 1000A DC can go through the electrode to refine noble metals.
Induction Heater
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- Working Voltage: 220V AC, 50/ 60Hz, Three Phases (380VAC, 3phase available upon request)
- Working Current: 10~86 Amps (100A breaker required)
- Max. Input Power: 25 KW
- Output Frequency: 30 - 80 kHz
- Induction Coil: 150mm(OD) x 140mm(ID) x 65mm(H)
- Air Cooling: Rear Fan
- Protection: Automatic water pressure, over-temperature, and overpower protection
- Refractory Assembling: Complete refractory assembling made of alumina, including bottom crucible support, crucible holder, and cover
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| Temperature Control |
- Precision digital temperature controller with Automatic PID tuning
- 30 segments programmable for controlling heating and cooling rate as well as dwell time.
- Overheating & thermocouple failure protection.
- +/- 3 ºC temperature accuracy.
- +/- 3 ºC temperature accuracy.
- Thermocouple: C type ( 1/4"x10"L ) ( pls click here to order spare as consumable )
- Continuous Working Temp. Range: 1000ºC~1700ºC
- Max. Working Temperature: 1800ºC (for less than an hour)
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| Electrodes & DC power Supply |
- Two water-cold electrodes with electric lifting machinery are installed on the top of the furnace with a 1000A max current rating.
- Two 20 mm diameter electrodes consist of two parts: The Top is made of copper with a water cooling jacket, which will connect to the DC power supply, and the bottom is made of a solid graphite rod, which is inserted into crucble
- Digital DC power supply with Max. 30VDC and 1000A is optional
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Graphite Crucible & Refractory Liners
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- High Purity Graphite Crucible: 6" O.D x 5" ID x 6"H, is included for induction heating.
- The three-layer special design refractory liner can withstand temperatures up to 1800C.
- Note: Graphite crucible is consumable; please click the picture below-right to order spar
 
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Sealing Flanges
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Quartz Chamber |
- Two-end Open Quartz Tube is included with dimensions of11"OD x 10.6"IDx 20” H
(Click the picture below-left to order a spare or replacement )
- Top Flange: Stainless steel hinged-type flange with 1/4'' thermocouple feedthrough, needle valve, and barb fitting. Please click the picture (bottom right) to view details.
- Bottom Flange: Stainless steel flange with a needle valve and KF-25 vacuum port. Please click the picture (bottom left) to view details.
- KF25 right angle valve& clamps and 1000mm long SS bellows are included for connecting to the vacuum pump
- Built-in 0.3 Bar pressure release valve to protect against over-pressure.
  
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Recirculating Water Chiller
Water Chiller optional
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- Water cooling is required
- Temperature range: 5 - 30°C
- Water Flow Rate: 58 L/m
- You may click the pic to the left to order the recirculating water chiller
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Compliance & Warranty
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- CE certified.
- NRTL and CSA certification is available upon request ( Protective case and isolation transformer will be added )
- One-year limited warranty with lifetime support
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