How to eliminate oil waste in industrial bakery

An industrial bakery equipment manufacturer solves a baking tray lubrication problem with PNR Italia atomizers

How to eliminate oil waste in industrial bakery

An industrial bakery equipment manufacturer solves a baking tray lubrication problem with PNR Italia atomizers

SCENARIO FOR THE SECTOR
How is industrial bread made?

The bread and leavened products that we find in large distribution chains come from elaborate and strictly regulated industrial processes to ensure the high quality of the finished product.

Often, for the production of large quantities of product, the dough and the bread are subjected to an automated production process carried out through the use of tunnel ovens and conveyor belts.

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Tunnel ovens and conveyor belts are often used for the production of large quantities of product.

The automated production process of industrial bread

According to the type of bread to make, the production process can consist of different phases. In general, however, we can identify 6 steps common to the vast majority of processes:

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THE PROBLEM

The customer who turned to PNR Italia is an industrial bakery equipment manufacturer.

The need was to lubricate with the right amount of oil the molds where the bread is baked to ensure that the product detaches easily once cooked.

During the industrial process of bread production, the dough, after being portioned, rises in particular cells. Its path then continues towards the tunnel oven. While the dough proceeds, another line sprays with oil the trays to cook the product. This operation is essential because it ensures that the baked bread easily detaches from the molds, avoiding ruining the finished product.

PNR ITALIA SOLUTION

Our Technical Department developed a system consisting of a manifold with 12 MX air actuated atomizers. It sprays the trays with oil at 3-second intervals at a pressure of 1 bar.

Each tray stops under the spray unit for 3 seconds and continues in the production line. The system uses 15 liters of oil for the lubrication of 2600 trays with 12 cells each.

MANIFOLD AND TRAY
FRONTAL VIEW AND DETAIL

MANIFOLD AND TRAY
ISOMETRIC VIEW

1 | MANIFOLD
2 | AIR ASSISTED ATOMIZERS
3 | TRAY

ADVANTAGES

Before our intervention, the customer used other lubrication methods that did not guarantee the precise results of the MX sprayers. The quantity of oil was excessive and compromised the finished product, generating economic losses.

The system developed by PNR Italia can carefully calibrate the amount of oil required for each cell and spray it accurately.

FOCUS ON THE PRODUCT

MXL 1640 B31AG
AIR ASSISTED ATOMIZER

MX bodies contain an air-actuated cylinder that controls the spray operation through a needle, opening or closing the water inlet in the liquid nozzle.

Find out more about the MX atomizer

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