Carbolite HTRH-GR Graphite Tube Furnaces up to 2600 °C

Code: HTRH-GR
  • Graphite heating and insulation
  • Use at multiple angles to suit application
  • Maximum temperature to 2600°C

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Carbolite Gero HTRH-GR Graphite Tube Furnaces up to 2600 °C

A graphite tube furnace range with a choice of maximum temperatures; 2200°C, 2400°C or 2600 °C. Models are equipped with a 50mm integral work tube and have a heated length of 260mm.

With the adjustable stand option, furnaces can be used at various angles, ranging from horizontal to vertical.

This range of cold wall tube furnaces is heated by graphite elements and insulated by graphite felt. At higher temperatures above 400 to 600°C graphite is air sensitive and needs to be kept under either an inert gas or vacuum atmosphere. To maintain an oxygen-free environment, the tube furnace is contained within a water-cooled vacuum-tight vessel sealed with rubber O-rings, which needs to be evacuated and purged with inert gas before heating.

The thermal conductivity of graphite felt insulation is very low, making it an excellent material for furnace insulation. The thickness and quality of the insulation materials are specifically chosen depending on the maximum operating temperature of the furnace.

Standard features

  • 2200, 2400 or 2600 °C maximum operating temperature
  • Graphite heating and insulation
  • Semi-automatic control with Siemens KP 300 panel
  • PID temperature programmer
  • Pyrometer for temperature measurement
  • Automatic gas valves with a manual flowmeter for one inert gas
  • Single-stage rotary vane pump
  • Water-cooled vessel (cooling water provided by customer)
  • Over-temperature protection
  • Leakage rate (clean, cold, dry and empty) < 5 x 10-3 mbar l/s
  • Closed flanges during heat treatment mandatory

Options

  • Fully automated control by Siemens PLC S7-300
  • Control panel TP1900 or WinCC for PLC
  • Further inert gas controls (manual or automated)
  • Double stage rotary and turbopumps
  • Adjustable angle stand
  • Sliding thermocouple for accurate temperature control under 1500 °C
  • Reference pyrometer (only with PLC)
  • Water cooling chiller (if cooling water is not available)
  • Special flanges with inert gas counter-flow for open operation during heat treatment

HTRH-GR 22/260

Max temp under Argon (°C)2200
Max temp under vacuum (°C)2200
Cooling time from 2000 °C (h)5
Inner tube diameter (mm)50
Heated length (mm)260
Outer dimensions tube furnace without stand Ø* x W (mm)400 x 900
Outer dimensions tube furnace with stand H x W x D (mm)1800 x 900 x 1000
Outer dimensions control module H x W x D (mm)1500 x 1500 x 1000
Furnace weight in total (kg)600
Required Argon gas flow (l/h)50-500
Required cooling water flow (l/min)25
Max power (W)23000

HTRH-GR 24/260

Max temp under Argon (°C)2400
Max temp under vacuum (°C)2200
Cooling time from 2000 °C (h)5
Inner tube diameter (mm)50
Heated length (mm)260
Outer dimensions tube furnace without stand Ø* x W (mm)400 x 900
Outer dimensions tube furnace with stand H x W x D (mm)1800 x 900 x 1000
Outer dimensions control module H x W x D (mm)1500 x 1500 x 1000
Furnace weight in total (kg)700
Required Argon gas flow (l/h)50-500
Required cooling water flow (l/min)35
Max power (W)32000

HTRH-GR 26/260

Max temp under Argon (°C)2600
Max temp under vacuum (°C)2200
Cooling time from 2000 °C (h)5
Inner tube diameter (mm)50
Heated length (mm)260
Outer dimensions tube furnace without stand Ø* x W (mm)400 x 900
Outer dimensions tube furnace with stand H x W x D (mm)1800 x 900 x 1000
Outer dimensions control module H x W x D (mm)1500 x 1500 x 1000
Furnace weight in total (kg)800
Required Argon gas flow (l/h)50-500
Required cooling water flow (l/min)50
Max power (W)42000

Notes
– Heat rate to 2000 °C approx. 10 °C/min, above 2000 °C lower
– Power supply by 3 phase power with 380-415 Volts with neutral and earth required
– Further to the diameter of the tube furnace the current feed-in connections have an outer diameter of 800 mm
– Inert gas and cooling water supply mandatory
– Maximum continuous operating temperature is 100 °C below the maximum temperature
– Above 2000 °C the wear down of the heating elements grows with raising temperature exponentially

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HTRH-GR Graphite Tube Furnace Brochure 77 KB

Additional information

Weight0.09 kg