The managing director, György Naszódi, has been working with ultrasonic devices since 1981, SERVINTERN ISZ. as an employee. At that time, KLN Ultraschalltechnik GmbH. represented and serviced. At the time of the change of regime, he became a co-owner of Realtrade Kft., Where self-developed ultrasonic washers (Realsonic) were manufactured, as well as KLN Ultraschalltechnik GmbH, as he could. representation was also taken forward.

HARDSONIC Bt was founded in 1994. Our main area of ​​activity was industrial ultrasound, including ultrasonic cleaners and ultrasonic plastic welders. In addition, the service and maintenance of machines and equipment used in other areas of use, as well as the design and construction of smaller control systems also fit into the profile. The founder invested with great hopes and energy in the domestic development and production of ultrasonic cleaners. Ultrasonic generators, vibrating units, immersion vibrators and vibrating plates were designed and manufactured in Hungary, and generators with power up to 300-2,000W have been completed for their operation. They have been marketed and installed for 5-8 years, also in their own designed and manufactured washing lines. We also manufactured single-chamber table washers according to individual needs. In addition, multi-chamber, automatic washing lines were made in our own design and construction, equipped with our own ultrasonic units, for the domestic, Romanian and Serbian markets.

Some nostalgia photos of these.



Unfortunately, the conditions at that time were not favorable for small series production, it was uneconomical for the so-called series production. We only kicked the ball if there were no hits in the “standard” and thus cheap offer of foreign manufacturers.

Since the year we founded Sonics & Materials Inc. in Hungary in 1995, we moved towards ultrasonic welders. Quite slowly, the production of cleaners, the production of the associated ultrasonic components and parts were also abolished, approx. 2011. Representation of ultrasonic washers and welders, with its services and services, became the main profile.

From 1995 to 2010 we represented and marketed German MSW Ultraschallanlagen GmbH, now known as German Sonic Ultraschallanlagen GmbH. products.

In 2009, we became the manufacturer of ultrasonic cleaners Elma Schmidbauer GmbH. representation and service. Although we lost our exclusivity in 2012, the relationship between the two companies is unbroken, and we continue to repair and market our cleaning tubs to this day.

In 2003, the German Herrmann Ultraschalltechnik GmbH. was looking for a contractual partner in Hungary. After a few weeks of getting to know each other, we signed a long-term contract that will end completely in the spring of 2022.

Until 2012, our company’s premises were located in the area of ​​the former Weiss Manfred Works (Csepel Works) in Csepel, on the Sewing Machine Street. Thanks to the close cooperation with Herrmann GmbH, we moved to Budaörs to a larger, higher quality site. More than 310 m2 of offices, a workshop, a consignment warehouse, a welding laboratory, a demonstration and training room served our customers. The first picture shows the slightly crowded office in Csepel, the others are in Budaörs u.n. TechCenter.


We look forward to seeing our old and new customers and those interested in technology in the future. Hardsonic continues to operate in the field of ultrasound technology and provides a brand-independent service. Because a welder can serve multiple projects, the ultrasonic tools (sonotrodes) and welding nests (jig, ambos, anvil) required for new projects are designed, fabricated, and commissioned as needed.