Absora provides HSA3, a patented micro‑perforated metal meta‑material that simultaneously absorbs broadband sound (250 Hz–5 kHz), dampens vibrations, and smooths airflow in a lightweight, self‑supporting sheet. The fiber‑free, fully recyclable metal panel reduces weight by up to 80 % compared with traditional fibrous absorbers, cuts material and installation costs, and meets hygiene requirements for automotive, aerospace, HVAC, cleanroom and other industrial applications.
Funding
Funding not disclosed
Founders
Product
Problem
Industrial and commercial environments often rely on bulky, heavy acoustic insulation made from fibrous materials that are difficult to install, hard to clean, and generate significant waste. These traditional solutions also struggle to provide effective low‑frequency sound absorption, vibration damping, and airflow management in a single, lightweight component.
Solution
Absora offers HSA3, a patented meta‑material in the form of a micro‑perforated metal sheet that simultaneously absorbs broadband sound (250 Hz–5 kHz), dampens vibrations, and smooths fluid flows. The material’s high stiffness and self‑supporting structure eliminate the need for additional framing, reducing overall weight by 60‑80 % compared with conventional wool or foam absorbers. Because it is 100 % metal, HSA3 is fully recyclable, washable, and free of fibers, addressing hygiene concerns in cleanrooms, food production, and medical facilities. The sheet can be produced in various metal types and thicknesses (0.15 mm–3 mm), allowing customization for different acoustic, structural, and thermal requirements. By integrating acoustic performance with lightweight construction and flow‑optimizing properties, HSA3 enables more efficient, cost‑effective, and sustainable noise‑control solutions across multiple industries.
Target Audience
Primary customers include OEMs and system integrators in automotive, aerospace, HVAC, industrial machinery, and cleanroom/food‑processing sectors that require lightweight, hygienic, and high‑performance acoustic and vibration control solutions.
Features
- Micro‑perforated metal sheet (meta‑material) providing broadband absorption from 250 Hz to 5 kHz and superior low‑frequency performance (50‑80 % better than wool)
- Integrated vibration damping through a mass‑spring resonator design
- Lateral micro‑perforations that actively smooth air and fluid streams, reducing pressure loss in HVAC and ductwork
- Self‑supporting, high‑stiffness construction eliminates the need for additional support frames
- 60‑80 % lower weight than traditional fibrous absorbers, enabling lightweight designs
- 100 % recyclable metal, fully washable and fiber‑free for hygienic applications
- Available in multiple metals (e.g., aluminum, stainless steel) and thicknesses from 0.15 mm to 3 mm for tailored performance
- Cost‑effective manufacturing: >50 % cheaper and up to 70 % faster production than multi‑layer conventional absorbers