Carbolite SNF Swelling Number Index Furnace

Code: SNF Furnace
  • Maximum temperature 900°C
  • Chamber dimensions: height 330 x width 410 x depth 300 mm
  • Standard Complaint

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Carbolite Gero SNF Swelling Number Index Furnace

This furnace is designed to test the swelling index number of coal in compliance with the standards BS ISO 501:2012, “Hard Coal – Determination of the Crucible Swelling Number,” and ASTM D720-91 (2010), the standard test method for the free-swelling index of coal.

A known mass of coal is heated within a crucible in adherence to a set procedure. After the process, a swelling number can be determined by comparing the size and shape of the residual to the referenced outlines.

  • Compliant with BS 1016-107.1:1991.
  • Power supply 220-240V single phase.
  • Weight 26kg.

The furnace comes with a 132 base controller, and a crucible wire holder is also supplied. The continuous operating temperature is 850 °C, with a maximum power consumption of 800 watts. External crucible height 26mm, outer diameter 41mm, internal diameter at the base 11mm.

For protection, a 30 mA (RCD) residual current device is standard.

Options

  • Over-temperature protection for long periods of unattended operation.
  • Additional crucibles and lids available.
  • Spares Kit which includes a thermocouple, thermocouple sheath, heating element, solid-state relay (SSR) and door insulation piece.
  • Upgrade to a 24-segment programmable controller.
  • RS232 and RS485 communication options.
  • Spares kit includes: Sheath, thermocouple, power relay SSR, heating element & door insulation.

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Title Size
SNF 172 KB

Additional information

Weight 0.09 kg