INDUSTRIAL OVENS AND HANDLING SYSTEMS FOR THE GLOBAL BAKING INDUSTRY

Industrial ovens and handling systems for the global baking industry

A specialized process like baking is not easy to automate. So, building

a complete oven for a variety of products calls for more than just knowledge

of construction and process control. It demands intelligence, skill, an understanding

of the baking process, and a world of experience.

These are the strengths of Den Boer Baking & Handling Systems, and they have been

brought together in a new line of ovens: The Den Boer Multibake® Line.

The result of 100 years of oven-building experience

combined with worldwide product knowledge

Total Bakery Solutions

Den Boer Baking and Handling Systems is member of the Tromp Group. Together with Tromp Bakery Equipment

and VanderPol Waffle Systems we offer total turnkey projects for the food industry. The Tromp Group has been

a member of the Markel Food Group since 2014.

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® D

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® I

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® R

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® H

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® H

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ModularThe most important aspect of the new oven range,

with its four variants, is the modular design. This

enables an oven to be delivered relatively quickly-,

and exactly tuned to meet the demands of a specific

baking process. Because the modules are

entirely pre-assembled, considerable time can be

saved during installation. This means your new

oven is ready for use in next to no time.

Perfect BalanceThe new Den Boer Multibake® Line offers an

optimum price/quality ratio, and perfect control

of the baking process. As always, quality is a first

priority at Den Boer. The Den Boer Multibake®

Line: the perfect balance.

This oven could be constructed with

doors on the opposite burnersite.

Top and bottom heat individually

adjustable. 4-8 modulating burners

per module.

Vapour hood with labyrinth filters on

the outfeed side of the oven.

Den Boer Multibake® DThe Multibake® D oven is a directly heated oven. The required heat is created directly in the

baking tunnel by means of modulating multi-ribbon gas burners. Each top burner is equipped

with an electronic air valve to prevent cold air flow inside the oven baking chamber when the

burner is switched off.

ConstructionThe baking tunnel is divided into modules and guarantees

an even heat transfer to the product. The oven is constructed

completely with Corten steel and has a vapour-tight baking

tunnel which is divided into modular sections. The sections

are connected on a frame with a vapour-tight connection

between the sections.

Advantages• Top and bottum burners are individually controlled

(modulating).

• Moisture from the burners provides a positive influence on

the product development, taste, crust and structure.

Modulating burnersThe modulating burners design-consists of a specially rolled

and profiled pipe, fitted over its entire length with a stainless

steel corrugated strip burner bed. These control units

ensure ignition of the burner, gas valve control and flame

monitoring.

Insulation MaterialThe oven walls are heavily insulated with high-quality

materials. The high insulation value prevents costly heat

from escaping to the outside. With an ambient temperature

of 20¼C (68 ˚F), the exterior of the oven will never be hotter

than 43¼C (110 ˚F).

Each modulating burner is equipped

with a burner control unit, electrically

operated gas supply valve and ignition

pin which also serves as an ionization

pin.

Direct fired ovens can be constructed

with top and/or bottom convection.

Options: steam, gap detection and

energy management

Highly efficient heat flux by optional

use of infrared bottom burners in the

first baking zone.

Modules can be constructed

with doors to provide easy access to

the interior of the oven allowing easy

cleaning and safe access.

The plenums transport indirectly

heated hot air at high-speed

(impingement) to the top and

bottom of the products.

Vapour hood with labyrinth filters on

the outfeed side of the oven.

Den Boer Multibake® IThe Den Boer Multibake® I (Impingement) is an indirectly heated oven,

employing hot air transported at high speed to both the upper and lower

side of the product. This is accomplished using an industrial burner

coupled to a stainless steel heat exchanger.

Everything Independently AdjustableThe Den Boer Multibake® I is highly suitable for baking a

variety of products. This is possible because parameters

such as temperature, air speed and humidity can be set

independently from one another per baking zone.

The flexibility is increased further by the modular design

which allows installation to be completed quickly.

Advantages• Recirculation of air provides less energy and more control

of moisture.

• Significant reduction of baking time.

Moisture ControlThe drying speed of a product can be influenced by

adjusting the temperature, air speed and moisture content in

the oven. The moisture content of the air in the oven can be

increased by means of steam injection. The condensation

of the steam onto the product improves the heat transfer

to the center of the product and prevents drying out of the

outer layer. The oven can be fitted with automatic moisture

control in all zones, but is normally used in the first zone of

the oven.

Insulation MaterialThe oven walls are heavily insulated with high-quality

materials. The high insulation value prevents costly heat

from escaping to the outside. With an ambient temperature

of 20¼C (68 oF), the exterior of the oven will never be hotter

than 43¼C (110 oF).

The plenums are constructed with

specially designed nozzles. These

nozzles blow air at high speed into the

various baking zones. The height of

the plenums at the top can be

adjusted if needed, giving optimum

adaptability to each product.

Adding moisture during baking. The burner and heat exchanger are

combined in a compact unit. The air

to be heated for baking (process air)

is transported equally over the

heat exchanger by means of one fan.

The fan is equipped with a Corten

steel blower (frequency controlled).

Modules can be constructed

with doors to provide easy access

to the interior of the oven allowing

easy cleaning and safe access.

Radiator tubes in each module are

located underneath and above the

product conveyor.

Vapour hood with labyrinth filters on

the outfeed side of the oven.

Den Boer Multibake® RThe Multibake® R oven is designed with the cyclotherm principle or “heat wheel” system.

Heating is entirely indirect, using central burners outside the baking area.

The heat is transferred to the product by means of radiator tubes.

ConstructionThe baking tunnel is divided into modules and guarantees

an even heat transfer to the product. The oven is constructed

completely with Corten steel with a vapour-tight baking

tunnel which is divided into modular sections. The sections

are connected on a frame, with a vapour-tight connection

between the sections.

Advantages• Perfect oven for mono productions.

• No turbulence on top of the product.

Example of Radiator TubesThe baking tunnel is divided into modules of 2,2 mtr.

Radiator tubes for each baking zone are located underneath

and above the product conveyor. The radiator tubes are

connected to special distribution units for the supply and

exhaust of the recirculation of combustion gases.

Insulation MaterialThe oven walls are heavily insulated with high-quality

materials. The high insulation value prevents costly heat

from escaping to the outside. With an ambient temperature

of 20¼C (68 ˚F), the exterior of the oven will never be hotter

than 43¼C (110 ˚F).

Each distribution unit has its own

multi port regulator slide that operates

across the full width of the oven. Any

desired baking curve is possible in the

oven.

Higher and more heat transfer can be

created by applying ribbed bottom

tubes in the first baking zone.

Example of the cross-section of the

interior construction of the radiant

heating principle. Radiant heated

ovens can be constructed with top and

bottom convection.

Modules can be constructed

with doors to provide easy access

to the interior of the oven allowing

easy cleaning and safe access.

Free space underneath oven

construction.

Vapour hood with labyrinth filters on

the outfeed side of the oven.

The hybrid variant of the Den Boer Multibake® Line is a designcomprising multiple oven types

grouped in a single oven unit. In principle, any combination of the Multibake‘D’, ‘I’, ‘R’ and

even ‘HT’ modules can be assembled, allowing you to enjoy the unique benefits of each to

provide modularity and a perfect balance.

ConstructionThe baking tunnel is divided into modules and guarantees

an even heat transfer to the product. The oven is constructed

completely with Corten steel and has a vapour-tight baking

tunnel which is divided into modular sections. The sections

are connected on a frame with a vapour-tight connection

between the sections.

Advantages• A supreme control of baking practices.

• The combination of oven types ensures higher baking

quality and increased product uniformity.

Example of CombinationsThe baking tunnel is divided into modules of 2,2 mtr. for

each baking zone. As an example, an oven with a length of

total 18 modules can have 13 modules direct heated and 5

modules indirect heated.

Insulation MaterialThe oven walls are heavily insulated with high-quality

materials. The high insulation value prevents costly heat

from escaping to the outside.With an ambient temperature

of 20¼C (68 ˚F), the exterior of the oven will never be hotter

than 43¼C (110 ˚F).

Individually controlled exhaust valves

for an optimal baking result in the

several different zones and baking

practices.

Example of a transition from baking

practices.

The main control box only has one

central control system to monitor

manage, and maintain.

Den Boer Multibake® H

Flawless take-over at stone

floor execution.

Example of built in IR burners. Extended vapour hoods with grease-

extraction filter. To reduce baking

steam into the bakery to a minimum,

extended vapour hoods are fitted to

the oven infeed and oven outfeed.

Den Boer Multibake® HTThe Multibake® HT oven is a directly heated oven, the required heat is created directly in the baking

tunnel by means of infrared (IR) burners. There are different numbers of IR burners in each module.

In each module there are IR gas burners at the bottom side for the belt pre-heating.

Our high temperature ovens can be constructed as direct IR or indirect impingement.

ConstructionThe baking tunnel is divided into modules and guarantees

an even heat transfer to the product. The oven is constructed

completely with Corten steel and has a vapour-tight baking

tunnel which is divided into modular sections. The sections

are connected on a frame, with a vapour-tight connection

between the sections.

Advantages• Very short baking times.

• Less space required for the oven.

• Efficient and high output.

Pre-heatingThe burner intensity of the belt pre-heating will be

controlled by PLC as a separate baking zone.

The construction of the baking tunnel and the position of

the burners, guarantee an even and efficient heat transfer

to the product.

Insulation materialThe oven walls are heavily insulated with high-quality

materials. The high insulation value prevents costly heat

from escaping to the outside. With an ambient temperature

of 20¼C (68 ˚F), the exterior of the oven will never be hotter

than 43¼C (110 ˚F).

We engineer our take-over conveyors

with high temperature execution.

The product to be baked can be

transported by stone-belt, steel

plates or wire mesh.

Example of hatches with quick acting

closure.

Handling Systems

Greasing

- Trays- Straps

Storage

- Paternoster- Multideck- Stacking

Depanning

- Needle- Vacuum- Flip (single-double)- Sharp nose

Cleaning

- Brush or air- Washing- Ultra Violet

Unloading

- Trays- Single pans- De-Lidding

Ovenloader

- Trays- Single pans- Peelboards- Lidding

Cooling/Proofing

- Paternoster- Spiral- Impingement- Vacuum

Our expertise in handling systems provides the most suitable equipment...

before and after the baking.

SHEETED BREAD LINES PASTRY LINES

PIZZA LINES CAKE & PIE LINES

Den Boer Baking Systems BV | De Singel 20, 7722 RR Dalfsen | P.O. Box 29, 7720 AA Dalfsen, The Netherlands Phone: +31 (0) 529 438383 | info@denboerbs.nl | www.denboerbs.nl