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25KW Small Vacuum Induction Melting System upto 2000°C with Complete Accessories- Optional 80 or 100mm Quartz Tube - SP-25VIM

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Item Number: SP-25VIM


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SP-25VIM is a MET standard small vacuum split induction heating / melting system with complete accessories, including SP-25A Induction Heater, Quartz Tube with Flange & Valve, Graphite Crucible & Refractory Assembling, 4L/m Recirculating Water Chiller, Vacuum Pump, and Mobile Cart. It is an ideal tool for researching new metallic alloys with both melting point < 2000ºC and quantity < 500g.
Please always keep negative pressure during heating and filling inert gas, and protective glass.  Raising  pressure will damage quartz tube and cause injuring. Read manual carefully. Monitor and properly control the inside pressure of reaction vessel at all time during operation. Otherwise, failure of operation may result in irreversible damage to the equipment or personal injury.

Induction Heater
  • Working Voltage: 220V AC, 50Hz, Three Phase
  • Working Current: 42 Amp (50A breaker required)
  • Max. Oscillating Power: 25KW
  • Max. Input Power: 15KW
  • Max. Oscillating Power: 2 - 25 KW
  • Output Frequency: 30 - 80 kHz Adjustable
  • Duty Cycle: 80%
  • Induction Coil: 95mm(OD) x 85mm(ID) x 50mm(H) 
  • Auto Heating Time: 1-99 seconds
  • Auto Dwell Time: 1-99 seconds
  • Auto Cooling Time: 1-99 seconds
  • Air Cooling: Rear Fan
  • Protection: Automatic water pressure, over temperature, and over power protection
Vacuum Chamber
Graphite Crucible

  • Quartz Tube ( click picture below to order spare or replacement )
    • Half Open Quartz Tube is included with dimensions of 80mm(OD) x 75mm(ID) x 300mm(L)
    • Optional: 100mm(OD) x 92mm(ID) x 300mm(L) Quartz Tube is available at extra cost
  • Vacuum Flange: 
    • Stainless Steel Flange with high-temperature silicone o-ring and self-tighten structure
    • Two valves and vacuum gauge installed on the flange.
    • KF25 connector and 1000mm long SS pipe is included for connecting to vacuum pump
  • High Purity Graphite Crucible: 2.285"(OD) x 1.415"(ID) x 3.05"(Deep) Crucible (79mL) included for heating and melting
  • Complete refractory assembling made of alumina, including bottom crucible support, crucible holder, and cover.
  • One chamber shield is included to protect the chamber from foreign objects damage as well as containing exploded piece of the chamber.
  •          ( optional)     (BN crucible -optional)
Working Temperature
  • This induction heating system can reach 2000oC via graphite heater
  • No temperature controller. Temperature will be determined by sample melting via adjusting current
  • If you need an accurate temperature control,  please choose the induction heating system by clock picture below:
30KW Induction Heating System with Temperature-Controller upto 2000ºC for Melting or PVT - EQ-SP-50KTC
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 specific coolant to get the best performance.
  • For US customer, 110V water chiller will be included
Vacuum Pump
  • One 156L/m Rotary Vane Vacuum Pump is included
  • Rate: 156 L/min
  • Max. Power Consumption: 0.4KW / 0.37KW
  • For US customer, 110V Vacuum pump will be included
Heavy Duty Mobile Cart
    • Structure: Steel Frame Mobile Cart
    • 600mm(L) x 800mm(W) surface for placing Induction Heater & Quartz Tube with Flange
    Protective Shield 

    • For Non-UL Certified version, a protective shield made of phenolic sheets will be provided.
    • For UL Certified version, a clear protective shield made of polycarbonate will be provided.
    • The protective shield is to be placed around the quartz tube to contain the shooting glass shards if accidents were to happen.
    Product Dimensions
    • Induction Heater: 18.5"(L) x 12"(W) x 17"(H) (470mm x 300mm x 430mm)
    • Water Chiller: 18"(L) x 8.7"(W) x 28"(H) (460mm x 220mm x 530mm)
    • Heavy Duty Mobile Cart: 600mm(L) x 800mm(W) x 597mm(H)
    • One year limited warranty with lifetime support
    • Consumable parts such as processing tubes, o-rings and heating coil are not covered by the warranty
    • MET Certification is available upon request at extra cost, please contact our sales representitives for a price quote. Certify standards include: 1) Induction heater: UL61010-1 & UL499; 2) Vacuum Pump: UL1450; 3) Water Chiller: UL61010 & UL1995
    Operation Manual & Video       
    Application Notes

    Click here to learn more about the installation of a gas regulator.
    • Heater will shut down if over output occurs. Please reduce coil cycle number or sample size to keep heater operating under Max power
    • Melting time and temperature are related to materials, crucible, refractory insulation, etc. If you do not know whether the induction heater can melt your sample or not, please contact our engineer for consulting. Have your alloy's composition, melting point, and quantity to be melted prepared
    • Please click the picture on the left for the sequence of installation from Flange to Refractory Base  
    • The Induction Melting System are designed for using under vacuum and low pressure < 0.02 MPa / 0.2 Bar/ 3 PSI and The flow rate for gases should be limited to < 200 SCCM ( or 200ml/min
    • Attention:A pressure regulator must be installed on your input gas tank ( click picture left 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. Gas build up with pressure levels exceeding over 3 PSI may cause irreversible damage to the furnace chamber.  
    • 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 heating process; please open the gas release valve immediately once the chamber pressure has reached over 3 PSI to prevent unforeseeable damages.
    • For customization inquiries, please complete the "Customize Induction Heating System Form" and return it to
    Net Weight
    105 kg (230 lbs)
    Shipping Weight 160 kg (350 lbs)
    Shipping Dimensions 47" x 40" x 40"

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    1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
    2. We may add extra charges for paper order and net30 terms due to extra labor cost.
    3. The prices listed are subject to change without notice.