J 4
Belt ovens and complete production lines for bakeries and confectioners, supplied from Czech Republic worldwide
About J 4
J4 s.r.o. develops and manufactures belt ovens for bakery products, including cyclothermal, electric, direct-fired, convection and thermal-oil types. It also supplies complete bakery and confectionery production lines for bread, pastry, biscuits and similar products. The ovens are automated and controlled by software that stores up to 300 recipes, with optional steam generation and waste-heat recovery.
The company sells to bakeries and confectionery producers, from craft workshops to industrial plants. Its offering includes ovens, turnkey production lines, oven accessories and spare parts, and laser-cut sheet metal parts with bending, welding and painting services.
J4 was founded in 1994 and is headquartered in Předměřice nad Labem, Czech Republic. The company states that it delivers to North and South America, Africa, Europe and Asia, and it exhibits at international bakery trade fairs.
Product: Tunnel belt bakery ovens (cyclothermal, electric, direct-fired, convection, thermal-oil) and complete bakery and confectionery production lines.
Public contracts
Contracts J 4 signed since 1 Nov 2024, from the Slovak and Czech public contract registers. Values as published; amendments are not counted.
Customers
4 contracts with 2 buyers · 259k CZK
| Contracts | Value | |
|---|---|---|
| Zdravotní ústav se sídlem v Ústí nad Labem | 3 | 259k CZK |
| České vysoké učení technické v Praze | 1 | — |
Latest contracts
- 21 Apr 2026 for České vysoké učení technické v Praze · Objednávka na technické vyjádření k provozu pekárenské linky register
- 9 Feb 2026 for Zdravotní ústav se sídlem v Ústí nad Labem · Objednávka - Měření ergonomie pracovního místa (pracovní polohy; tažné a tlačné síly), · 72k CZK register
- 30 Jan 2025 for Zdravotní ústav se sídlem v Ústí nad Labem · Objednávka - laboratorní služby - komplexní analýza HV202, BJ149 · 90k CZK register
- 30 Jan 2025 for Zdravotní ústav se sídlem v Ústí nad Labem · Objednávka měření a stanovení škodlivin na jednotlivých úsecích (pro kategorizaci pracovišť) · 97k CZK register
Jobs at J 4
Leadership
- Jan Černík · Jednatel (Managing director)Source: business register
- Jan Dubišar · Jednatel společnosti (Managing director)Source: business register
- Jiří Souček · Jednatel (Managing director)Source: business register
- Martin Filipi · Jednatel (Managing director)Source: business register
- Michal Verner · vedoucí servisuSource: company website
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Website technologies
Tools and platforms detected on this company’s website, grouped by purpose. Dates record when Evolc observed them.
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Website detection does not establish a paid subscription or company-wide use. Tools loaded after consent or sign-in may be missed. “No longer observed” does not prove the company stopped using a tool.