These furnaces are top loading and particularly suited for applications involving tall crucibles and heavy components.

The coiled resistance wire elements are embedded in robust panels of cast refractory and line the four sides of the chamber ensuring even heat transfer to the load. Elements are not placed in the bottom of the chamber where they may be damaged by spillage. The elements are easily replaced by removal from the top of the furnace.

The door contains a simple vent to help remove fumes from the chamber.

The temperature controller is recessed into the furnace housing - and is inclined upward ensuring the display is clearly visible. Push button operation allows precise, repeatable setting and the digital display gives a clear indication of both actual furnace temperature and set-point.

The platinum/platinum 13% Rh Type R thermocouple gives a stable output over a long life and is located in a protective ceramic sheaf in a corner of the chamber where it is unlikely to be accidentally damaged.

Chamber sizes are 5, 10, 23 and 100 litres, with a maximum temperature of 1200°C.