Carbolite - Model SNF - Swelling Number Index Furnace
From Application Specific Furnaces - Coal & Coke Test Equipment
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.
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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
Technical Specifications
SNF
- Max temp (°C): 900
- Maximum continuous operating temp (°C): 850
- External crucible height (mm): 26
- External crucible diameter (mm): 41
- Internal crucible diameter at the base (mm): 11
- Dimensions: External H x W x D (mm): 330 x 410 x 300
- Thermocouple type: K
- Max power (W): 800
- Power supply: 220V - 240V, 50-60Hz, single phase and neutral, with protective earth (ground) connection
- Weight (kg): 26
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