Logo společnosti J 4 s.r.o.

“We build ovens for mastersof their craft”

Deck tunnel ovens


Banne EU


Název projektu: Podpora společnosti J4 s.r.o. na zahraničních trzích

Registrační číslo projektu: CZ.01.2.111/0.0/0.0/16_047/0008908

Popis projektu: Projekt je realizován v rámci Operačního programu Podnikání a inovace pro konkurenceschopnost. Předmětem předkládaného projektu je zvýšení konkurenceschopnosti společnosti J4 s.r.o. na zahraničních trzích, a to pomocí podpory účasti firmy na 7 mezinárodních veletrzích v letech 2017 až 2019. Účast na vybraných veletrzích přispěje společnosti k novým zakázkám, zvýšení obratů a také k celkovému růstu společnosti. Projekt je spolufinancován Evropskou unií.

Deck tunnel ovens are primarily used in bakeries of smaller dimensions or in the bakeries where it is not possible to place a standard oven considering the required oven capacity and length.
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Deck tunnel ovens

The ovens are intended for baking of all common types of bakery products.
These double-deck ovens are supplied in standard widths (0,6 ÷ 4m). They can be furnished with the accessories, whose overview can be found in oven accessories.

Options of oven modifications

Double-deck oven can be configured in 2 variants so-called „parallel flow“ and „counter flow“.

In variant „parallel flow“ it is possible to bake either only on one deck or on both decks together. For each deck you can choose different temperature and different time for baking and it is also possible to bake the different product on each deck. Direction is the same for both decks – parallel flow.

In variant „counter flow“ it is possible to bake on both decks only one product at the same time, the baking times are the same for the both decks. The product is set on upper deck and it is automatic set to lower deck and it returns to the beginning of the oven. Baking direction is opposite – counter flow.

Double-deck baking ovens can be cyclothermic, with using of diverse types of gas and liquid fuels, and also with electrical heating.

Example of axonometric profile of a double-deck cyclothermic PPP band oven with a wire mesh band. It is a construction of “counter-flow“ with a reloading conveyor between decks:

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1: burner 13: regulation damper of excess vapours exhaust from the baking chamber
2: burner chamber 14: vapours exhaust
3: combustion chamber 15: dual stainless steel steam pipes with 100% condensate separation
4: temperature control in the upper and lower radiators 16: inspection window
5: distribution ducts of hot combustion gases    
6: return ducts of cold combustion gases 17: baking chamber lighting
7: colleting chamber of cooled combustion gases 19: thermal insulation
8: cyclothermic fan of the heating system with speed control 20: wire mesh band conveyor
9: exhaust chimney for combustion gases from the heating system 21: band drive with speed control
10: safety ventilation flap 22: mechanical band tensioning
11: hot combustion fumes 30: roller conveyor for bread reloading
12: cooled combustion fumes    


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J4 s.r.o.

Průmyslová 96

Předměřice nad Labem

CZ-503 02 Česká republika


VAT ID Number: 60935731


Registered at Municipal Court

in Hradec Králové, section C, insert 6207


Telephone: +420 495 581 139

Fax: +420 495 581 321



Ing. Michal Verner

Head of Service