Bottom Loading Furnaces

Bottom Loading Furnaces are widely used in the laboratory and manufacture of the field of metallurgy, ceramics, machinery, analysis test, semiconductor, chemical industry, metallurgy, and glass industries, new material developing, machinery, fire-proof material, architecture, special material and etc under vacuum or other gases condition. Also our bottom loading furnaces can be used in the fields of science & research and so on.


Ⅰ. Technical Specifications
Max. temperature
  • 1200℃ (<2hour)
Working temperature
  • 800-1100℃
Temperature controlling
  • PID automatic control via SCR (Silicon Controlled Rectifier)power control with phase angle fired, current limiting resistor.
  • 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built in PID Auto-Tune function with overheating & broken thermocouple broken protection.
  • Over temperature protection and alarm allows for operation without attendant.
Optional of Temperature controlling
  • Software (Furnace can be operated by PC by installing a control software)
  • Touch screen temperature controller
Temperature accuracy
  • ±1℃
Temperature Uniformity
  • ±5℃ over 100 mm @ 1200℃
  • ±3℃ over 80 mm @ 1200℃
Heating rate
  • 0-20  /min
  • K type with 99.7% purity Alumina tube
  • Heating element
  • Resistance wire
  • Furnace Chamber
  • Two layers of ceramic fiber insulation materials
  • First layer: 1430℃ ceramic fiber board
  • Second layer: 1260℃ ceramic fiber board
  • Furnace structure
  • Double layer steel casing with dual cooling fan, surface temperature below 60℃
  • Furnace door
  • Bottom loading open
  • Power cutting off when furnace door open
  • Working voltage
  • 110V or 220V, 50HZ/60HZ, 1 phases (As per your order)
  • Warranty
  • One year limited warranty with lifetime support. (Consumable parts such as thermocouple is not covered by the warranty, please order the replacement at related products).
  • ATTENTION: Any damages caused by the use of corrosive and acidic gases are not under the coverage of One Year Limited Warranty.
  • Certifications
  • Ⅱ. Application Notes   
  • Using Attentions
  • Cooling rate shall also not exceed 10℃ /min.
  • Toxic or explosive gases are not recommended for use with this furnace without necessary safety controls and supervision.
  • Small cracks may appear on the surface of the refractory ceramics over extended use. This is a normal occurrence and the cracks may be repaired with alumina coating.

Our Standard Models

BV-HTRV 70-250

Tmax (°C) 1600, 1700, 1800
Max. outer diameter accessory tube (mm) 100
Heated length (mm) 250
Furnace dimensions H x W x D (mm) 1800 x 950 x 750
Furnace weight (kg) 300
Control module dimensions H x W x D (mm) 850 x 560 x 600
Control module weight (kg) 60
Power (kW) 6.5

Content may be subject to modifications or corrections