Surface Finishing
The sustainable and precise solution: surface finishing by Lehmann, including advanced high-temperature galvanizing.
600° Hochtemperaturverzinkung am Standort Berlin
450° Feuerverzinkung am Standort Neutraubling
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Hot-dip galvanizing
Our hot-dip galvanizing permanently protects steel components from corrosion. Hot-dip galvanized surfaces are robust, reliable, and economical.
The process forms a continuous and resistant zinc coating. This also reaches edges, cavities, and hard-to-access areas, resulting in durable products with high resistance.
Lehmann operates one of the most modern hot-dip galvanizing plants in Europe, to the highest standards. The usable kettle dimensions / largest component dimensions are: 6.70 m x 1.40 m x 2.80 m (LxWxD). Maximum part weight 3.20 t.
Hot-dip galvanizing offers long-term corrosion protection for up to at least 50 years, which often matches or even exceeds the lifespan of the components. This largely avoids maintenance work. The zinc coating is abrasion and impact resistant and withstands high mechanical stresses.
Hot-dip galvanizing is economical because initial costs are often lower, and its maintenance-free nature prevents high follow-up costs.
The process stands out for its sustainability and favorable CO₂ balance. It is resource-efficient, wastewater-free, and the resulting vapors are filtered and recirculated in closed loops. Hot-dip galvanized steel can be reused or recycled.
Another advantage lies in fire protection: Hot-dip galvanized steel structures achieve a higher fire resistance rating, often eliminating the need for additional fire protection measures. The process is also aesthetically appealing, as the surface offers an attractive appearance that can be further refined if desired.
Hot-dip galvanized surfaces are also resistant to chemical influences, thus contributing to the longevity and safety of components in a wide range of applications.
Services
- Batch galvanizing
- Zinc coatings according to DIN EN ISO 1461
- Processing of small and large parts
- Coating of components with complex geometry
- Surface preparation / additional work, including sweeping, fine finishing, or rework of bores and threads
- Project-specific consulting by our sales team
- Simple assembly work for series parts, if required
- Order picking for our customers' deliveries
Hot-dip galvanizing? We'd be glad to advise you.
High temperature?
We'd be glad to advise you.
“Our association has a long-standing, trusting, and committed collaboration with Otto Lehmann.”
Additional Services
- Quality Management
- Final Assembly of Components
- Express Service
- Intermediate Storage
- Packaging Services
- Transport Organization
Corrosion Protection is Environmental Protection
As operators of one of Europe's most modern hot-dip galvanizing plants, we contribute to environmental protection. Hot-dip galvanizing permanently protects steel from corrosion. This saves resources, reduces waste, and is more economical than other methods.
Sustainable Batch Hot-Dip Galvanizing
Batch hot-dip galvanizing is considered the most environmentally friendly corrosion protection system. It achieves protection durations of up to 100 years according to DIN EN ISO 14713. Compared to coatings or paints, it saves up to three times more energy and raw materials.
Key Focus Areas at Lehmann
- Emissions Control
- Recycling
- Water Management
- Efficient Energy Use
Standards and Guidelines
- DIN EN ISO 1461
Lehmann galvanizes according to DIN EN ISO 1461. This standard regulates zinc coatings on steel for general hot-dip galvanizing. It is valid worldwide. - DASt Guideline 027
Hot-dip galvanized steel achieves a fire protection rating of R30 according to DASt 027. This provides additional safety in case of fire. - DASt Guideline 022
With DASt 022, hot-dip galvanizing is also approved for load-bearing components. This provides customers with tested safety and complete planning freedom. - Purity and Process
Our products are delivered free of oil and grease. The galvanizing process is lead-free. - DIN ISO 9001
Our products and services undergo a recognized quality management system. - DIN ISO 50001
Our company is certified according to DIN ISO 50001. This standard ensures systematic energy management and promotes continuous optimization of energy consumption.
