SonoPerf Micro-slotted, absorbent, acoustic metal panels www.andritz.com/sonoperf
SonoPerf Sonitus meets Perforation Acoustic metal panels with a new design Advantages Sound absorption even without acoustic fleece Visual effect like a closed material Excellent absorption values up to class A Workability comparable to that of solid sheet metal Numerous areas of application Can also be used in hygienic environments Areas of application Acoustic ceilings Ceiling clouds Hygienic baffles Movable / dividing walls Shielding elements Furniture fronts Elements for hygienic environments and clean rooms Elements for large-scale kitchens Traffic noise absorbers Acoustic picture elements Wall panels Ventilation panels Acoustics and sound absorption play an important role not only in the design of workplaces and offices but also for occupational safety reasons. Especially in a working environment, unwanted sound levels and noise affect the performance of the workforce to a considerable extent. Today s popular design features, such as exposed concrete and extensive glass surfaces, have hardly any sound-absorbing properties and, therefore, worsen the room acoustics and consequently also the productivity of the workforce. Products for sound management in buildings are available with numerous different materials, surfaces, and acoustic properties. Metal and sheet metal elements are already being employed in acoustic applications. In most of the cases, these elements have circular, square, or elongated holes with clearly visible opening surfaces, and they are sound-absorbing only in combination with an acoustic fleece. A sophisticated design with invisible acoustic features can now be fully realized with SonoPerf. At a distance of approximately one metre, micro-slotted metal panels give the impression of a closed surface. Additional options for interior design with sound-absorbing SonoPerf are possible thanks to colored powder coatings or print motifs. As a specialist in the field of perforation technology, ANDRITZ Fiedler has developed a new production method. It enables the production of micro-slotted panels for large-area sound absorption applications. Micro-slotted SonoPerf panels are unique in terms of their functionality and design. Although microperforation for sound absorption has been applied for years, microslotted sound absorbers made of metal are a world premiere.
Sound absorption on the highest level with invisible micro-slots Up to now, the standard micro-perforated room acoustics materials were acrylic glass, wood, or films. The potential areas of application of these materials, however, are rather limited. In hygienic or sterile environments, sound absorption is often not possible: The available materials do not comply with the relevant rules and regulations. Film-wrapped foam material/mineral wool is not sufficiently sound-absorbing due to the closed film surface. Absorber elements with thin protective films cannot be cleaned sufficiently. The risk of bacteria growth and moulding is particularly high in a humid indoor climate. Heat- and moisture-resistant SonoPerf components made of stainless steel or aluminium have a sound-absorbing effect even without a fleece or mineral wool. In addition, they can be easily cleaned with high pressure. Apart from that, they also offer additional advantages, such as thermoactivity, stability, and durability. SonoPerf offers numerous new areas of application. Thanks to its smooth metal surface, sound-absorbing SonoPerf can be used wherever conventional perforated or closed sheet metal surfaces are used. As far as the assembly of components or the processing and handling are concerned, micro-slots have hardly any effect. Products hitherto made of solid sheets can now be enhanced with highly effective, sound-absorbing properties. Absorbing acoustic fleece or mineral wool in hygienic environments are no longer required with SonoPerf.
SonoPerf Specifications SonoPerf A (absorbing) SonoPerf A is particularly suitable for humid or hot environments as well as for hygienic environments. It can be cleaned easily with high pressure or steam. At a distance of one to two metres, the observer gets the impression of a homogenous surface. SonoPerf D (design) SonoPerf D has a high acoustic effectiveness in combination with fleece and/or mineral wool. This version is mainly chosen for design reasons, since the micro-slots are no longer perceptible at a short distance, so that the material provides the impression of a smooth surface. SonoPerf D offers excellent absorption values, even at low frequencies up to α 0.95 (class A). Material Steel Aluminium Stainless steel Plate thickness 0.75 mm 0.80 mm 0.50 mm Material Steel Aluminium Stainless steel Plate thickness 0.75 mm 0.80 mm 0.70 mm Open surface area 5% Open surface area 8% SonoPerf A. Plain aluminium SonoPerf D. Aluminium with white powder coating Sound absorption coefficient The micro-slots lead to absorption values α W up to 1.00 (classification A). SonoPerf thereby sets new standards concerning the sound absorption with micro-perforated materials. More than 20 certified measurements in a reverberation room (test certificate in accordance with DIN EN ISO 354:2003) provide acousticians with a reliable planning base for the targeted and lasting noise abatement. Detailed measurement results are available upon request. Sound absorption coefficient α s Results acoustic measurement SonoPerf D with sound insulation Distance One-third octave band centre frequency (Hz)
SonoPerf Application Examples There are no limits to your ideas Honeycomb panel: sandwich structure for large, smooth elements Absorbing lamp housing Absorbing picture element Diffusing 3D ceiling element Stainless steel ceiling element for hygienic environments The solution to your acoustic problem With specialists in the field of sheet metal processing, acoustics, indoor climate, lighting, and much more, we assist you in finding the solution to your specific, individual needs. If you have any queries concerning acoustic matters, our partner and product developer Marco Mäder (akustik & innovation gmbh) is at your disposal at any time. Hear the difference today! www.akustik-innovation.com maeder@akustik-innovation.com Andritz fiedler GmbH Regensburg, Germany Tel.: +49 (941) 6401-0 akustik & innovation gmbh Wangen bei Olten, Schweiz Tel.: +41 (62) 212 42 72 www.andritz.com/fiedler andritz-fiedler@andritz.com All data, information, statements, photographs and graphic illustrations made in this leaflet are without any obligation and raise no liabilities to or from part of any sales contracts of Andritz AG or any affiliates for equipment and/or systems referred to herein. Andritz AG 2009. 2010. All rights reserved. No part of this copyrighted work may be reproduced, modified or distributed in any form or by any means, or stored in any database or retrieval system, without the prior written permission of Andritz AG or its affiliates. Any such unauthorized use for any purpose is a violation of the relevant copyright laws. Andritz AG, Stattegger Strasse 18, A-8045 Graz, Austria PW.son.01.eng.09.10