DUMA-BANDZINK GmbH

Industry-leading results for the selective application of zinc or aluminium on continuously processed steel strip
DUMA-BANDZINK galvanizing and aluminising systems are characterized by outstanding coating results using a minimum of Zn/Al layers. Moreover, the equipment is robust in service and easy in maintenance and handling.

DUMA-BANDZINK equipment offers zinc coating from 30 to 350 g/sqm with highest surface uniformity on products such as GI, GA, Galfan, Galvalume and high-quality ALSi surfaces.
Our equipment is designed for high speeds of up to 200 meters per minute or even more via continuous development.

Features of our galvanizing systems:

Massive finish to avoid vibrations
High accuracy of pressure distribution
2- or 3-roll systems
Permanent strip adjustment in pass line via individually adjustable stabilising rolls and correction rolls
Rapid assembly and quick equipment replacement
Quick pressure regulation via DUMA-BANDZINK’s patented radial controller (less than 6 seconds for pressure changes)
Considerable noise reduction
Significant nitrogen cost reduction
Highly reliable lip-cleaning device
Anti-adhesion lip coatings

Perfect stiffness and rotational stability are the key to outstanding coating results.
DUMA-BANDZINK pot equipment is designed in maximum rigidity so that any form of distortion on the bearing seat is avoided. Thus, vibrations and zinc coating deviations are drastically minimized. In addition to further positive effects, a significantly measurable advantage in comparison to competitors assures our pot equipment when producing exposed automotive strip grades or advanced high-strength steel grades (AHSS). Our new Generation II rigs and arms are individually optimized for each line and roll position in relation to the resulting forces.

For automatic feeding of alloyed metal ingots into melt pots
An efficient product for automatic feeding of alloyed metal ingots into melt pots with focus on employee safety. New and current industrial safety acts and security targets are the central aspect of this development.



Conventional manual feeding of zinc ingots via chain system implies increased safety risks for the operating staff.
The new zinc ingot charging system of DUMA-BANDZINK is highly efficient and operates automatically and inexpensive. The system is designed for zinc ingots of 1,000 respectively 2,000 kgs. 2 types are offered for custom-made operation:

Ingot charging system with zinc-proof dipping basket and feeding mechanism
Ingot charging system via lifting table
 

Both types are designed to reduce bath turbulences to a minimum.

Without considering the type, the melt bath level is kept almost constant.
By this, possible bath turbulences are minimized.