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7KW Induction Heating System (4" Tube Up to 2000ºC) with Temperature-Control - EQ-SP-7TC

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EQ-SP-7TC is a compact temperature-controlled induction heating/melting system with complete accessories, which includes a 7KW Induction Heater, 100mm O.D Quartz Tube with Flanges & Valves, Graphite Crucible & Refractory Assembly, 58L/m Recirculating Water Chiller, Vacuum Pump, and Mobile Cart. It is an ideal tool for melting, sintering new metallic alloys, and melt infiltration with a melting point < 2000ºC (under vacuum or protective gas environment).



Induction Heater
  • 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
Temp. Controller & Thermocouple
  • 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)
Graphite Crucible &  liners
  • 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-layers refractory liner: Graphite fiber sheet is a thermal insulator
  • The crucible for melt infiltration is available upon request 
Sealing Flanges & Quartz Chamber
  • Quartz Tube: Two-end Open Tube is included with dimensions of 100mm(OD) x 92mm(ID) x 365mm(L)
  • Top Flange: Stainless steel hinged type flange with 1/4'' thermocouple feedthrough, needle valve, and bard 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
Pressure Sensor
  • Anti-Corrosive Capacitance Diaphragm Gauge, the measurement range is up to 3.8x10E-5 torr
  • One 24V,1A DC power adapter is included and ready to use. The input voltage for the adapter is 110~240V.
Water Chiller
  • 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.
Vacuum Pump
Heavy Duty Mobile Cart
  • Structure: Steel Frame Mobile Cart
  • 600mm(L) x 800mm(W) surface for placing Induction Heater & Quartz Tube with Flange
Product Dimensions
  • Induction Heater: 18.5"(L) x 12"(W) x 17"(H) (470mm x 300mm x 430mm)
  • Water Chiller: 18"(L) x 18.7"(W) x 30"(H) (460mm x 475mm x 762mm)
  • Heavy Duty Mobile Cart: 600mm(L) x 800mm(W) x 597mm(H)
  • 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
  • One year limited warranty with lifetime support
  • Consumable parts such as processing tube, refractory liners, o-rings and heating coil are not covered by the warranty
Operation  Video          
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 )
Net Weight 300 lbs
Shipping Weight Total 550 lbs
Shipping Dimensions Total 2 Pallets:    #1: 48" x 40" x 41"      #2: 48'x 40" x 43'

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