Multi-purpose atmosphere firing equipment NHM series

Equipment Overview

This is a multi-compatible electric furnace in which a tungsten tube of high-purity alumina is inserted from the back of the atmospheric furnace, and the inside of the tube can be fired in various atmospheres. Atmosphere, humidification, vacuum, pressurization, degreasing, various atmospheres, oxygen concentration control, etc. are available.

Multi-purpose atmosphere firing equipment NHM series
Multi-purpose atmosphere firing equipment NHM series

Special Specifications

  • Vacuum and pressure reduction program (0.133 Pa at 1300°C temperature)
  • Pressurized atmosphere
  • Degreasing function
  • Low-concentration oxygen control (using nitrogen, less than 100 ppm)
  • Medium- and low-temperature furnace support
  • observation window
  • Sample temperature control
NHM Series Electric Furnace Specifications: Normal operating temperature: 1700°C
Model name NHM-2025 NHM-2035
 Inner dimensions of furnace W200×H200×D250mm W200×H200×D350mm
 Temperature range 400~1700℃ (depends on heating element type)
 Primary power supply AC200V 1φ 50/60Hz
 Equipment capacity 11kVA
 Atmosphere Hydrogen, nitrogen, oxygen, humidification
 Gas control method Stationary control by mass flow controller
 Oxygen concentration control 150-2400ppm (at 2L/min nitrogen) with zirconia sensor
 Humidification control DP -30 to +50°C (at nitrogen 2L/min) with optical dew point meter
 Vacuum gas replacement Automatic operation (linked with temperature control)
 Degree of vacuum 13.3 Pa or less
 Heating element Molybdenum disilicide
 Furnace tube material Alumina tube, clear quartz tube, stainless steel tube
 Furnace tube dimensions Approx. φ90mm
 Temperature control method Programmed PID continuous control
 External dimensions W1600 x H1525 x D700mm (excluding protruding parts)
 Weight Approx. 700kg
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