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NER

Drying and crosslinking tunnel

The NER drying tunnel has been designed to guarantee a drying of the leathers free from thermal shock, to avoid the consequent loss of yields in the area and sudden changes in the leather temperature, while at the same time guaranteeing great energy savings by working at high speed.

Optional
 
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Energy saving

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IR lamp for the hybrid version

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Surface temperature detection of the leather during drying

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Dry the film without heating the leather

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Highly effective insulation

Safe drying

The NER drying tunnel has been designed to guarantee a drying of the leathers free from thermal shock, to avoid the consequent loss of yields in the area and sudden changes in the leather temperature, while at the same time guaranteeing great energy savings by working at high speed.

 

For this purpose, the tunnel is made up of several special drying elements (or chambers) characterized by individual adjustment, both of temperature and of air flow, with values ​​that can be customized by the operator, giving maximum flexibility of the programmable cycles. Phase by phase, the tunnel self-regulates only the energy necessary for the evaporation of the water content of the finish, and provides for the continuous recirculation and filtration of the air in each element, making the drying environment free from dust . It is an original design solution and the only one in the tanning sector capable of creating a drying profile at a controlled temperature.

 

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This is a great help in reducing the absorption of heat by the skins, limiting shrinkage phenomena and not compromising the softness and appearance of the skin . The quality of the air flow in the tunnel is influenced by both the temperature and the relative humidity of the air. To keep this last parameter under control, the NER system is equipped with a sensor to keep the air quality always at optimal values for perfect drying. All drying parameters are regulated by the LCAS touch-screen system, which can be integrated into any Erretre cabin.

Heating sources
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Steam

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Water

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Gas

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Diathermic oil

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Modular tunnel

The NER tunnel is a real “modular” tunnel where each module is physically independent from the closest one. This drying tunnel has been designed to guarantee a “controlled” drying of the leathers, preventing thermal shocks with a correlated loss of surface yield, guaranteeing absence of contamination, great energy savings and high working speed.

 

For this purpose, the tunnel is made up of drying chambers characterized by individual regulation of both heat and air flow.

 

The air handling system inside the individual stages prevents dust contamination even in the presence of dirt on the bottom of the tunnel. This flow of air in countercurrent with respect to the movement of the hides also guarantees excellent distribution uniformity, making the drying of the hides being processed uniformly.

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Hybrid

The NER tunnel is also available in the Hybrid version in which drying takes place by a combination of hot air and IR radiation. This solution is particularly appreciated in conditions of limited space or for those looking for high working speeds. The Erretre drying tunnel was created with the aim of facilitating the work of operators, guaranteeing more homogeneous and uniform drying and reducing working times.

Technology

The entire production line is governed by our innovative software that simplifies a system with thousands of variables making it accessible to any operator, thanks also to the new graphic interface with purely iconographic language that simplifies and facilitates control in a multicultural environment.

 

With the new software all devices are incorporated into a single control, as are the energy saving functions. The creation and management of processing recipes through our software are extremely easy. During processing, all processing data is automatically logged without any operator intervention. What has been logged is easily available for company supervision with data exchange through SQL databases compatible with 4.0 systems.

 

The software is also equipped with on-line help with documentation, operating manuals and wiring diagrams that can be easily consulted from the operator panel.

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Contact us

Send your request for additional information on Erretre's NER Drying Tunnel. One of our representatives will be happy to answer you. Thank you

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