EMG eMASS® - electromagnetic strip stabilisation

Stable strip in coil coating lines

EMG eMASS® is a turnkey system for stabilising fast running ferromagnetic steel strips based on electromagnets. The main field of application is the process optimisation and saving of metal coating at the air knife of a hot-dip galvanising, GALVALUME®* or aluminising line.  

The system is installed directly above the nozzle - as close as possible to the nozzle lip that blows off the liquid metal layer. With the experience of over 50 successful installations worldwide, EMG guarantees customised, optimal integration of eMASS® in the air knife area.   

*GALVALUME® is a registered trademark of BIEC International Inc.

Individual solution for every type of air knife

As the market leader with a large number of different integration solutions worldwide, EMG will find the optimal solution for you.

The better the strip stabilisation system is integrated into the air knife arrangement and the closer the strip stabilisation system is located to the level of the air knife lips (i.e. the actual point of technology), the better the results for vibration damping and crossbow reduction.

To achieve this goal, from the installations realised so far a wide variety of solutions are available to integrate EMG eMASS® into an existing or new system above the blow-off nozzle.
The supports can, for example, be straight or cranked in order to arrange the EMG eMASS® actuator housings as close as possible to the air knife lip in combination with the order-related design of the support structure. Here flexible adapters for individual situations exist. Depending on the respective air knife, its vertical and horizontal travel possibilities and load capacities, the support structure can be attached to the air knife, for example at the air knife height adjustment or on the plant floor. Versions with horizontal movement of the beams as well as vertical adjustment of the beams or the actuator housings are possible.

For many years, in close cooperation with DUMA-BANDZINK GmbH, the ”Integrated Solution“ with complete mechanical and electrical integration of EMG eMASS® in the air knife has been offered and successfully used worldwide.
Further information about the integrated solution can be found here: DUMA-BANDZINK: Air-Knives and Integrated Solution.

Customer benefits and unique selling propositions

Homogeneous metal layer over strip width and strip length 

Stable passline of the strip and reduction of the crossbow

Narrower nozzle gap 

Targeted and reliable production of low run weights 

Lower air or nitrogen consumption 

Higher strip speed 

Better weldability 

Avoidance of strip damage when used in the cooling tower 

Saving potential for coating material due to reduced overcoating


Have we caught your interest? Get in touch!

"Due to the large number of individually implemented solutions, EMG's understanding of the special features of the manufacturing processes supported by EMG's quality assurance systems has grown over the years. EMG's long-standing presence in the market has led to very in-depth knowledge and experience from which our customers benefit. For example, the EMG eMASS® strip stabilisation system enables demonstrable improvements in quality and zinc consumption in the hot-dip coating of steel sheets."

Steffen Dombrowski, Product Manager


Please contact me:

T: +49 2762 612-388
E-Mail: steffen.dombrowski@emg-automation.com

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