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Vertical Box Furnace with 13"D x10"H (21 Liter) up to 1700C for DIY Crystal Growth - VTF-1600X

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EQ-VTF-1600X is a large vertical box furnace designed for sintering or melting materials and for crystal growth via TSSG. The furnace has a vertical chamber with top load and pulling equipment can be attached to the furnace easily. The furnace consists of high-quality alumina fiber brick and MoSi2 heating elements with the chamber of 13" Diameter x 10 " high, and can be used up to 1700º C. The Precision digital temperature controller with 30 segments programmable is built in the furnace with +/1ºC accuracy


Furnace construction

  • Double shell steel casing with a cooling fan to keep the low surface temperature
  • High purity alumina fiber insulation and liner for max. energy saving
  • It is designed for DIY a Furnace for top-seeded solution growth ( TSSG) of single crystal

Inside Chamber Size

  • 13" Diameter x 10 " high   ( 21 Liter )
  • Effective heating zone:  8" Dia x 10" H   ( Capacity 8L )
Vertical structure     Top view of chamber     Cap of the cylinder chamber 

Standard Working Temperature

1600ºC ( continuous )

Max. Working Temperature

1700ºC   ( < 1 hrs)

Temperature Control

30 steps programmable and auto control

Heating Rate

0~10ºC / min     (suggestion at  =< 5ºC)

Temperature Accuracy

+/- 1 oC

Heating Element

8 pcs MoSi2

Working Voltage

AC 220V  Single Phase

Max. Power

9.5 KW

Power Cable & Plug

  • 10 Feet length 10 - 3 AWG heavy duty UL approved power cable is included. Extra length cable can be ordered by clicking the picture below-left
  • The plug is not included. Browse our catalog for compatible plugs or obtain one from a local hardware store.

Outside Size

24" x 25"x 32.5"

Net Weight

180 Kg

Dimension of shipment

45" x 45" x 52"

Weight of shipment                

400 Lbs


One-year limited warranty (Consumable parts such as processing tubes, o-rings, and heating elements are not covered by the warranty, please order the replacement at related products below.)


  • CE Certified
  •  NRTL(UL61010)  or CSA certification is available at extra cost.

Operation Instruction

Application Note
  • Warning: MoSi2 heating element is used in the high temperature under the oxidizing atmosphere, which not be used in the temperature between 400ºC and 700ºC for a long time, otherwise, the element will be cremated.
  • With option Crane with Winch and Mullite Round Single Bore Tubes,  you can DIY a vertical furnace with rapid heating and cooling function. ( click Pic 1 )
  • You can order a Tungsten wire or platinum tire to fabric your sample basket to fast cool after heating. (Molybdenum wire can not be used because of oxidation.)
  • We can help you to build a pulling and rotation module for top seed solution growth of a single crystal  ( click Pic 2 )
  • The furnace can be modified to be one vacuum crucible furnace with a vertical quartz liner and stainless steel vacuum flange. (click Pic 3)

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