Swelling Number Index Furnace - SNF



The SNF furnace is designed to test the swelling index number of coal in accordance with the following standard test methods

  • BS 1016-107.1:1991 Methods for analysis and testing of coal and coke. Caking and swelling properties of coal. Determination of crucible swelling number

Standard features

  • For testing the free swelling index number of coal
  • Also known as the crucible swelling number
  • For testing to BS ISO 501:2012 and ASTM D720-91(2010)
  • 30mA (RCD) residual current circuit breaker, protects the operator (because the test requires operation with the door open during heating)
  • Precise PID temperature control using 2132 controller
  • Supplied with wire crucible holder

Options (specify these at time of order)

  • Accessory crucibles and lids available
  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available. These can be fitted with RS232, RS485 or Ethernet communications
  • Over-temperature protection (recommended to protect valuable contents & for unattended operation)
  • Spare parts available separately or in a kit comprising; thermocouple, thermocouple sheath, heating element, solid state relay (SSR) and door insulation piece

Control Options

Content may be subject to modifications or corrections