BLF bottom-loading furnaces utilize an electrically operated elevator hearth. As the hearth rises into the furnace chamber, it lifts the load into the heated zone. This furnace offers several advantages, including easy sample loading and uniform heating achieved by positioning elements in all six side walls of the chamber. The furnace can reach temperatures of up to 1600°C, making it ideal for sintering zirconia dental crowns and frameworks. Additionally, the use of silicon carbide heating elements ensures that there is no discoloration of the zirconia material.
Standard Feature:
- 1600 °C, 1700 °C & 1800 °C maximum operating temperature
- Programmable 3216P1 controller
- 3 to 21-litre capacities
- Ideal for: sintering high-performance ceramics, melting glass under high temperatures or working with modified atmospheres
- Rapid heating & cooling cycles can be achieved through raising & lowering the hearth
- Electrically operated elevator hearth protects the operator from the chamber’s radiant heat
- Hearth cage with safety interlock
- Excellent temperature uniformity as a result of the hexagonal chamber
- Over-temperature protection to protect load or furnace during unattended operation
- 1600 °C model heated by silicon carbide elements
- 1700 °C & 1800 °C models heated by molybdenum disilicide elements
Options:
- A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications (see pages 100 – 103 brochure)
- Compatible crucibles
- Modified hearth for the introduction of gases into an inverted crucible (not gas-tight)
- Radiation shutter
- Customized options including adaptation to introduce a thermocouple or stirrer through the chamber roof and rotating hearth
- Plasma-sprayed alumina protection tube to protect
heating elements from sample contamination