eMASS®
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Electro magnetic strip stabilisation Edge mask control defined and homogeneous zinc coating stable „pass line“ and „crossbow“ reduction quality optimisation and increased thro

Electromagnetic strip stabilisation EMG eMASS® Operating method: Functional principle: Not only the guarantee of the minimum coating thickness, but also its homogeneity is an important quality feature in the production of hot-dip galvanised flat steel. A decisive factor in this regard is a stable and flat position of the strip on the „pass line“, which is the ideal centre line between the air knife lips during the controlled blowing off of excess zinc. The core component of EMG eMASS® is a system consisting of electromagnetic actuators and contact-free strip position sensors. Two air-cooled...

Performance features: Customer benefits stabilisation for ferromagnetic strips homogeneous metal layer across the width and length of the strip the system can be freely scaled up to strip widths of 2100 mm, +/- 50 mm lateral strip offset stable „pass line“ of the strip and reduction of up to 8 magnet / sensor pairs, individually the „crossbow“ effect movable reducible air knife gap low maintenance / maintenance-friendly savings potential thanks to targeted and reliable extensive safety functions production of lower coating weights high-performance system interface reduced air and nitrogen...

Electromagnetic strip stabilisation EMG eMASS® Technical data: Area of application all ferromagnetic steel qualities at a strip temperature of < 600 °C, typ. GI, GF, GL higher strip temperatures (e.g. for hot-dip aluminisation) are available on request austenite content <=30 %, others on request Weight (total) (additional air knife load) typ. 900 kg per strip side, including brackets for inserting eMASS® into the carrier system (8 pairs of magnets at a max. strip width of 2100 mm) Strip thickness Mechanics Dimensions with carrier (W x H x D) Actuator housing one air-cooled stainless steel...

Individual solutions for all types of air knives: The strip vibration damping results and the increased added value that can be achieved through the use of an electromagnetic strip stabilisation system depend significantly on the optimum arrangement of the strip stabilisation system in relation to the air knife system. The general rule is: 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...

Edge mask control EMG eBACS Application: In hot-dip coating lines, the air outlet gap of the blow-off nozzles (air knives) is at least as wide as the widest running strip. So-called “edge masks” or “baffle blades” are a feature of the air knives that widen narrower strip material to avoid air turbulence occurring at the edges. This can prevent impairment of the zinc layer at the strip edges (“growths”), while also significantly reducing the level of noise generated by the flowing air. The edge masks are normally controlled pneumatically and pressed against the strip edges by contact rolls,...

Individual components for OEMs: Installation as a platform system: EMG supplies components for the various providers of air knives with edge mask devices. EMG’s eBACS system is frequently seen as a useful addition to the EMG eMASS® system, however, it is also used as a separate solution in its own right. In the simplest case, these are just the strip edge sensors with special cables and signal amplifiers, however, it can also include actuators and position measurement systems. EMG compiles individual solutions together with the air knife manufacturers and provides support for structural and...

Automation GmbH Industriestraße 1 57482 Wenden Germany EMG / P-A / EMG eMASS®-eBACS / EN / Revision 00 / 05.2021 / Printed in Germany / Subject to modification