Hot-dip galvanizing provides durable and efficient corrosion protection.
Hot-dip galvanizing provides durable and efficient corrosion protection.
Zinc nibs from the zinc bath are removed by the dressing shop after cooling.
Zinc nibs from the zinc bath are removed by the dressing shop after cooling.
Our galvanizing shop is open to private and business customers.
Our galvanizing shop is open to private and business customers.
Zinc nibs from the zinc bath are removed by the dressing shop after cooling.
Zinc nibs from the zinc bath are removed by the dressing shop after cooling.
Our galvanizing shop is open to private and business customers.
Our galvanizing shop is open to private and business customers.
Hot-dip galvanizing provides durable and efficient corrosion protection.
Hot-dip galvanizing provides durable and efficient corrosion protection.

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Hot-Dip Galvanizing Against Corrosion

Graepel-STUV GmbH in Seehausen has its own galvanizing shop with an annual capacity of 6,000 t. Not only do we apply a durable and effective corrosion protection coating onto our products but we also offer this service to companies and private customers in compliance with DIN ISO EN 1461.

Our certifications:

  • DIN EN ISO 9002 (since 1993) certified
  • DIN EN ISO 14001 (since 2009)
  • DASt-Richlinie 022 (DASt directive 022) -> Ü-mark (since 2009)

The hot-dip galvanizing process:

Staff ties raw parts to the crossbeam.
Staff ties raw parts to the crossbeam.
The crossbeam is immersed in the first pickling bath.
The crossbeam is immersed in the first pickling bath.
The pickling process comprises several baths.
The pickling process comprises several baths.
The crossbeam is withdrawn from the last pickling bath.
The crossbeam is withdrawn from the last pickling bath.
Before the crossbeam is immersed in the zinc bath in the zinc oven, the walls are closed to avoid splashing of the zinc.
Before the crossbeam is immersed in the zinc bath in the zinc oven, the walls are closed to avoid splashing of the zinc.
The crossbeam is immersed in the zinc bath.
The crossbeam is immersed in the zinc bath.
The galvanizing process itself only takes a couple of minutes.
The galvanizing process itself only takes a couple of minutes.
The crossbeam is slowly withdrawn from the zinc bath.
The crossbeam is slowly withdrawn from the zinc bath.
After galvanizing, the parts are shiny silver in color.
After galvanizing, the parts are shiny silver in color.
Staff unties the products from the crossbeam.
Staff unties the products from the crossbeam.
After cleaning, the products are made ready for dispatch.
After cleaning, the products are made ready for dispatch.

The steel parts are immersed in a liquid zinc bath at a temperature of about 450 °C and remain inside the bath until the material has assumed the temperature of the zinc bath. The galvanizing process is completed. The coating-thickness depends on the material thickness and is between 50 – 100 µm.

Advantages:

  • durable corrosion protection, the annual erosion rate for hot-dip galvanized parts in standard atmosphere is about 1 µm per year
  • high impact strength
  • no peeling off

If you would like to make use of our galvanizing service, please observe the parameters below:

1. Tieing dimensions:
  • maximum length = 6.50 m
  • maximum width = 0.80 m
  • maximum height = 1.80 m
2. Loads:
  • maximum load per crossbeam: up to 1.4 t
  • individual load without crossbeam: up to 2.0 t (on request)
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