工業用ベーカリーオーブンメーカー
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Bakery oven types — selection guide
Deck ovens have fixed stone or steel baking decks heated independently from above and below, with individual steam injection. They produce excellent artisan-quality bread with thick crusts and open crumb. Loading and unloading is manual using peels or automatic loaders. They are used in craft bakeries and high-end retail production but are too slow and labour-intensive for industrial scale. Rack ovens load a full wheeled rack of trays which rotates inside the oven chamber for even baking. They offer versatility for multiple product types (bread, rolls, pastry, cakes) on one oven and are the standard for mid-volume mixed bakeries. Tunnel ovens are continuous conveyor ovens that carry product through independently controlled heating zones on a steel band, mesh belt, or stone sole. They are designed for high-volume, continuous production of a limited product range and are the standard for industrial bread, biscuit, and cracker factories. Rotary ovens (turbo ovens) use forced convection with a rotating product carrier and are used particularly for pies, pastries, and baked goods requiring all-round heat exposure.
Energy source and efficiency considerations
Bakery ovens are heated by gas (natural gas or LPG), electricity, or oil (less common). Gas-fired ovens dominate large-scale industrial bakeries because gas provides fast heat recovery and lower operating cost than electricity in most markets. Electric ovens are preferred in locations without gas supply or where electricity is cheaper than gas, and for smaller bakeries where installation simplicity and safety are priorities. Tunnel oven thermal efficiency — the percentage of fuel energy converted to useful baking heat — varies significantly by design and by production rate. At low production speeds (short products, large gaps between products), thermal efficiency drops considerably. Buyers should ask suppliers for specific fuel consumption data (kWh or MJ per tonne of baked product) at the intended production rate — not peak efficiency figures.
Frequently asked questions
How long should a tunnel oven be for my bread production?
Tunnel oven length is determined by the required throughput (loaves per hour), the bake time for the product (typically 20–35 minutes for standard sandwich bread), and the belt width. A longer oven with a wider belt processes more loaves in the same floor space. Suppliers size the oven by calculating: (throughput × bake time) / (loaves per metre of belt × belt width). As a rough guide, a 1.2-metre-wide belt tunnel oven of 30 metres can typically bake 800–1,200 standard 800g sandwich loaves per hour. Always confirm with the supplier by providing your specific product, target output, and available floor length.
What is steam injection, and do I need it?
Steam injection into the oven chamber in the early baking stage condenses on the cold dough surface, delaying crust formation, allowing the loaf to expand fully, and producing a glossy, thin, and crisp crust. It is essential for French baguettes, sourdough, rolls, and crusty bread products. For sandwich bread baked in covered tins (Pullman loaves), steam injection is less critical as the tin controls the shape. For biscuits, crackers, and pastry, steam injection is generally not used. Confirm with your product development team whether steam injection is required for your product range.
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