Tinning Furnaces and Tinning Lines
Ausschnitt Bandverzinnungslinie

WSP Tinning Plants: High Productivity and Quality due to Innovative Concepts

General Structure

  • Strip entry
  • Strip pretreatment depending on material condition (mainly degreasing or degreasing plus pickling)
  • Flux bath
  • Optional: flux bath drying or strip pre-heating
  • Tinning part: tin pot with deflection roller
  • Air Knife
  • Strip cooling part
  • Coating thickness measurement
  • Wind-up part


WSP Crushible Furnace for Tin

WSP Zinntiegelofen

In order to apply the tin layer, the strip is led into a tin pot. It is deflected upwardly by an immersion roller. The temperature inside the pot is 240°C - 290°C. The removable tin pot is located inside the tin pot furnace (in working position). Usually, the tin pot is electrically heated or gas heated. It is very important to minimize the inevitable rise in temperature of the tin bath in case of strip stoppage. The WSP concept guarantees this by various optimizations.

WSP Optimierung eines Zinntiegelofens einer Verzinnungsanlage

The temperatures of the tin bath are relatively low, but since the space in the tin pot is also limited, the resulting heat flows can be quite high and may lead to pot deformations (pictured on the right, pot before and after WSP optimization).


DUMA-BANDZINK Verzinnungsdüse - Air Knife

DUMA-BANDZINK Tinning Nozzle / Air Knife

A tinning nozzle (air knife) blows onto the vertically (in upward direction) running strip (on both sides) in order to achieve an exactly predetermined tinning result.

A uniform layer thickness on the entire strip widths can be defined by variable settings of pressure and positions. The nozzle angel can also be adjusted.

We cooperate successfully with DUMA-BANDZINK GmbH. DUMA-BANDZINK GmbH gained worldwide leadership. Theyhave many references in the field of galvanizing and tinning.


WSP Kühlstrecke Verzinnung

WSP Cooling Line

The demands are high: The tin layer must be cooled down properly before the strip passes the first deflection roll (in order to avoid any surface damage). The cooling power is decisive for the height of the plant. Nevertheless, the achievement of a high heat transfer is not predominantly: the tin layer is very sensitive on the first meters und must not be blown off. WSP has developed a special nozzle system for these critical areas which achieves high heat transfer and prevents that the sensitive tin layer is blown off. For this system, WSP can provide references in the field of tinning plants and galvanizing systems for the steel sector.

WSP Engineering

... since 1989

WSP GmbH was founded in 1989 by Prof. Dr.-Ing. Carl Kramer. At first, as an engineering office, later our spectrum has been enlarged  ...Read more...

Laboratory Heat Treatment Plant at ITP

Institut für Termorpozesstechnik - ITP - Labor Wärmebehandlungsanlage

... for your material development

 ITP - Institut für Thermopozesstechnik has developed and built a heat treatment plant to anneal samples with the real temperature and speed of an annealing line. This may accelerate your material development ... Read more...

WSP - German Quality

WSP - Made in Germany

Contact - WSP

Our address:
An der Glashütte 10
52074 Aachen, Germany
phone +49 241-879703-0
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Office hours:
Monday-Friday 08:00 a.m. - 05:00 p.m.

Our Customers

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