High temperature tunnel ovens, pre-bake ovens

High temperature baking ovens

High temperature indirect heated – cyclothermic band ovens are intended for baking requiring temperatures up to 550° C. Such ovens are primarily suited for baking Arab style bread or other products demanding baking temperatures above 340°C and requiring a very short baking time. 

It differs from other oven types mainly in its construction and used construction materials which are resistant to high temperatures. These ovens are generally supplied without a steam zone, in widths of 1.2m and 1.8m and in baking area lengths of 12m and 14m. However, it is also possible to order other dimensions with consideration to the respective technology of the baking production line. 
Conveyor band of these ovens is generally wire mesh belt intended for the operation in high temperatures. Ovens can be heated up with gas, diesel oil, fuel oil, or else with other gas or liquid fuels.

Pre-bake ovens

Cyclothermic high temperature pre-bake ovens are primarily intended for pre-baking bakery products demanding temperatures that greatly exceed 300°C, which e.g. is suitable for dough with greater volumes of rye, or pure rye dough.

Their possibilities are much broader than just that. The construction of this pre-bake cyclothermic baking oven stems from the concept of high temperature ovens in combination with a granite-stone plate band, whose plates are created from pure natural granite. It gives the advantages described below. The pre-bake oven is followed by traditional wire mesh belt oven with wire mesh band. This combination of 2 ovens, standing one behind the other, is favourable mainly from the point of the purchase costs.

Advantages of pre-bake oven

The main benefit of this pre-bake oven equipped with a granite-stone plate band is the high ability to accumulate heat in individual granite plates along the entire conveyor band, helping in perfecting the process of pre-baking the product from below and thus creating a sufficiently strong bottom crust. The cheaper variant of this oven, with lower, but nevertheless, good ability to accumulate heat, is equipped with a louver plate band. Both variants of the band help, owing to the accumulation ability, the product to reach high temperature of the bottom after being set on the band immediately and thus the product gets a larger volume.