7KW Induction Heating System (80mm OD Tube, up to 1900ºC) with Temperature-Control - SP7TC

• Working Voltage: 208~240V AC, 50/ 60Hz, Single Phase
• Working Current: 34 Amp (60A breaker required)
• Max. Input Power: 7 KW
• Output Frequency: 30 - 80 kHz Adjustable
• Duty Cycle: 80%
• Air Cooling: Rear Fan
• Protection: Automatic water pressure, over-temperature, and overload protection
• Refractory Assembling: Complete refractory assembling made of alumina, including bottom crucible support, crucible holder, and cover

• Working Voltage: 208~240V AC, Single Phase
• Automatic PID tunning for temperature control.
• 30 segments programmable for precise controls of heating rate, cooling rate* (won't get faster than natural cooling) and dwell time.
• Overheating & thermocouple failure protection.
• +/- 5 ºC temperature accuracy.
• Thermocouple: C type
• Continuous Working Temp. Range: 1000ºC~2000ºC
• Max. Heating Rate: 
• 10ºC/second (1000ºC-1200ºC)
• 8ºC/second (1200ºC~1500ºC)
• 3ºC~6ºC/second (1500ºC~1700ºC)

• High Purity Graphite Crucible: 1.5"(OD) x 1.25"(ID) x 3.75"(Deep) Crucible is included for induction heating and metal melting.
• Max. Loading Capacity: Up to 1/2 of the total volume of the graphite crucible, ~35ml.
• Double-layer refractory liner: Graphite fiber sheet is a thermal insulator
• The crucible for melt infiltration is available upon request 

• Quartz Tube: Two-end Open Tube is included with dimensions of 80 mm(OD) x 72 mm(ID) x 365mm(L)
• Top Flange: Stainless steel hinged type flange with 1/4'' thermocouple feedthrough, needle valve, and barbed fitting. Please click the picture (bottom-right) to view the details.
• Bottom Flange: Stainless steel flange with needle valve and KF-25 vacuum port. Please click the picture (bottom-left) to view the details.
• KF25 right angle valve & clamps and 1 meter SS bellows are included for connecting to the vacuum pump

               

• Anti-Corrosive Capacitance Diaphragm Gauge, the measurement range is up to 3.8x10E-5 torr

• Temperature range: 5 - 30°C
• Water Flow Rate: 16 L/min
• Water Tank: 12 Liters made of stainless steel
• Note: It is recommended to use a specific coolant to get the best performance.

• One UL Certified 156 L/min Double-Stage Rotary Vane Vacuum Pump is included
• Vacuum level: 5x10e-2 torr by the mechanical vacuum.
• For better melting may choose turbopump at extra cost to reach 10e-5 torr vacuum 

       

• Structure: Steel Frame Mobile Cart
• 600mm(L) x 800mm(W) surface for placing Induction Heater & Quartz Tube with Flange

• NRTL Certification is available upon request at extra cost, please contact our sales representatives for a price quote.
• Certify standards include: 1) Induction heater: UL61010-1 & UL499; 2) Vacuum Pump: UL1450; 3) Water Chiller: UL61010 & UL1995

Application Notes

Click here to learn more about the installation of a gas regulator.

• Please click here to learn the Fundamentals of Induction Heating
• The Induction heating system is designed for use under vacuum and low pressure < 0.02 MPa.
• Attention: A pressure regulator must be installed on your input gas tank ( click picture below to review ) and have the output gas pressure set below 3 PSI at all times after opening the gas tank with the gas maintained in a continuous flowing condition. 
• Never heat the furnace while the gas release valve is closed and a positive pressure condition exists within the furnace chamber. The pressure gauge must be used to closely monitor the chamber condition at all times during the healing process
• The flow rate for gases should be limited to < 200 SCCM ( or 200ml/min )