Reheat furnaces

These types of moving hearth furnaces tend to be used for variable size and geometry stocks. Our systems offer fast, user-friendly installation, good lining performance and overall energy cost savings. A very performing range of insulating products allows us to replace advantageously the ceramic fiber materials.

Bogie furnaces are of two types: Annealing with max temperature of 1150°C and Forging with max temperature of 1350°C. We can propose diverse solutions depending on your needs; we have selected some of our best sellers for this application.

The operating temperature in a pusher furnace is generally up to 1250°C (for special steel grades like high silicon steel please contact us directly). Calderys has a full range of solutions: cast-in situ, plastic to cast/gun/ram, Quick Drying and Sol-Gel, Spraycast or Precast.

Walking Beam furnaces are the most advanced type of furnaces for the reheating of heavy and thick products. The temperature is generally around 1250°C but can reach 1450°C in some cases. Calderys has a full range of solutions: cast-in situ, plastic to cast/gun/ram, Quick Drying and Sol-Gel, Spraycast or Precast.

Walking Hearth furnaces allow the transportation and reheating of different sizes of material. Unfortunately, the back-face of the stock cannot be heated so that the stock residence time may be long. Consequently, the corrosion by scaling becomes important as well as abrasion. The temperature is generally around 1250°C. Calderys has a full range of solutions: cast-in situ, plastic to cast/gun/ram, Quick Drying and Sol-Gel, Spraycast or Precast.

This furnace is for holding hot steel ingots to equalize their temperature before they are hot-rolled in a steel-making or rolling mill complex. Normal practice is to charge ingots into the soaking pits immediately after stripping from the moulds whilst they are still hot. Soaking pit temperatures are generally controlled at 1300°C. Each pit may hold several ingots and serves to bring the ingots up to a uniform temperature for rolling and to act as a reservoir to accommodate fluctuations in the flow of ingots.

The roller hearth conveyor system consists of a series of externally driven rolls. There are no cumulative conveyor pressures or tensions as in belt, chain or pusher furnaces. As a result, there are no production or cycle limitations and furnace length is dependent only upon your application needs. Because individual conveyor rolls are externally driven and remain in the same temperature zones, they are not subject to thermal cycling and can be designed for maximum operation life at working temperatures. You will find below a brief description of our range.