what is HSA3?
HSA3 is essentially a high-strength sheet – a groundbreaking material for lightweight construction, acoustics, and filtration. Thanks to its lateral micro-perforation, it not only absorbs sound and vibrations with high efficiency but also actively smooths air and fluid flows. A true technological leap for the most demanding applications, achieved entirely without conventional, bulky insulation materials.
Sound absorption coefficient in comparison
HSA3 aluminum sheet
Sound, vibration & flow smoothing
HSA3 absorbs sound and vibrations across a wide frequency range. In the low-frequency range, the sheet metal is 50-80% more effective than conventional absorbers made of rock wool or foam. At the same time, the intelligent perforation ensures that incoming air currents are smoothed in a targeted manner.
Groundbreaking for construction
The material offers extremely high rigidity at a very low weight. HSA3 is 60-80% lighter than conventional rock wool constructions. It acts as a completely self-supporting sheet, eliminating the need for heavy substructures.
Versatile, clean & affordable
Besides its acoustic properties and lightweight construction, micro-perforated sheet metal is ideally suited for demanding filtration tasks. It is over 50% cheaper to purchase, fully recyclable, and, as an absolutely fiber-free material, avoids any hygiene problems.
Technological leap
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Discover products →Frequently Asked Questions about HSA3
Do you have specific technical questions about our microperforation material? You'll find the answers here.
Can HSA3 be manufactured from any metal?
Yes, in principle any metal is possible. We usually have aluminum and stainless steel in stock.
In what material thicknesses is HSA3 available?
Depending on the chosen material, almost any thickness between 0.15 mm and 3.0 mm is achievable.
Does HSA3 require a substructure for mounting?
No. Thanks to its extremely high stiffness, HSA3 is completely self-supporting and requires no additional support structure.
What is the best way to install HSA3?
Ideally, HSA3 is mounted with an air gap (cavity) in front of a soundproof wall. In some cases, however, this back panel can be omitted entirely. Feel free to contact us for a customized design proposal!
How exactly does HSA3 absorb sound and vibrations?
It works through a combination of a mass-spring system and laminar friction. The special lateral microperforations create an interaction between the air space in front of and behind the material. Furthermore, the integrated structures act as a periodically arranged resonator, making HSA3 a true vibroacoustic metamaterial (VAMM). This results in significantly broader damping than conventional solutions.
Why is HSA3 so much cheaper than other absorbers?
Traditional absorbers (e.g., made of rock wool) consist of many layers: support structure, insulation material, membrane, and perforated metal sheet. HSA3 eliminates all of that! It is rigid enough for frameless installation and only requires air behind it. Furthermore, unlike other micro-perforations, our special manufacturing process does not require expensive lasers or specialized tools.
How does HSA3 contribute to energy efficiency?
Rock wool or foam insulate heat and take up a lot of space – HSA3 does not. This means HSA3 can be used directly as a heating or cooling surface in wall or ceiling panels. In ventilation ducts (HVAC), HSA3 saves energy because it significantly reduces the cross-section of the required silencers.