Molten Metal Systems

Model ERF

Our ashing, calcining and roasting furnace range is available in a variety of sizes.

Our engineers work closely with our customers to select the right furnace for their needs. Contact us today to find out more.

Key Benefits

  • Roasting of sulphide ore samples.
  • Easy to maintain and operate.
  • General purpose laboratory work.
  • Built to industry standards.

Technical Specifications


  • Cabinet is 1.2 mm zinc anneal sheet, lined with insulating fire bricks, backed with Superwool® insulation board.
  • The furnace is finished in Hammerfin blue enamel.

Heating Elements

  • Spiral elements of Kanthal “A1” wire carried in grooves machined into the walls of the furnace.
  • Element rating: 7.5 K.W. 3 phase.

Temperature Control

  • Electronic, Automatic control 800°C, type “K” Thermocouple.
  • Switching: Solid State Relays, on PID control.

Racks and Trays

  • A rack fabricated from 304 stainless steel to accommodate 6 trays at 60mm centres.
  • Trays fabricated from 2mm 304 stainless steel sheet 190 x 355 x 15mm deep.

Internal Dimensions

  • 250 mm high x 490 mm wide x 420 mm deep.

Electrical Requirements

  • 15 Amp, 3 Phase plus neutral supply.
  • Electrical load: 7.5 K.W. (NOTE: Voltage is customised to destination country of the furnace).

Spare Parts

For spare parts for this particular model click here.


Fusion furnaces are manufactured from premium grade raw materials under an ISO 9001:2015 quality management system.