Vacuum casted fiber ceramic  crucible heater features with light weight , high thermo insulation and lowcost. It is ideal  module for DIY 4" Lab crucible furnace at low cost

Specifications:

• I.D.                              8" +/- 0.125"
• O.D.                            12" +/-0.25"
• Deepth:                       10" (Inside)
• Height                         12"
• Heating Wire:               Ni-Cr-Al alloy
• Voltage:                       120V
• Wattage :                     5000W
• Operation temperature:  1100 ^oC
• Heating Time:                < 15 minutes w/o load
• One fiber ceramic cover is included

Smart Tip:  You may choose our temperature control unit to control the furnace module