Sonitron’s participation in Interplast reinforces its leading role as one of the main national references in technology for ultrasonic welding of thermoplastic parts. With more than 45 years of experience in developing industrial solutions, the company presents to the market a complete portfolio that combines precision, reliability and high productivity, meeting the demands of sectors that operate with tight tolerances and high quality standards.
During the fair, Sonitron demonstrates in practice how ultrasonic welding can transform production processes, raising the level of finish, reducing production cycles and ensuring greater repeatability. The booth becomes a space for technological experimentation, in which visitors can understand how the correct application of ultrasound directly impacts operational efficiency and industrial competitiveness.
The highlight of the participation is the SERVOWELD Ultrasonic Welder, considered Sonitron’s most advanced solution for welding thermoplastics. Equipped with servomotor drive, depth control with 0.01 mm precision, and Bluetooth connectivity, the SERVOWELD meets processes that require absolute dimensional control and extreme repeatability. This technology represents a significant advance over traditional pneumatic systems, offering greater stability, adjustment flexibility, and reliability in the final result.
In addition to the SERVOWELD, Sonitron presents its SONOWELD and ECONOWELD pneumatic welders, recognized for their durability, operational stability, and excellent cost-benefit ratio. These models feature reinforced structures, integrated safety systems, and high-performance ultrasonic generators, being widely used in continuous production lines that demand reliability and robustness over time.
SONITRON’S ULTRASONIC WELDING OFFERS HIGH PRECISION AND CONTROL
Ultrasonic welding of thermoplastics is a well-established and highly efficient technology, especially suitable for applications requiring speed, superior finish, and joining without additional consumables. The SERVOWELD, officially launched in 2025, represents the natural evolution of Sonitron’s engineering. Its servomotor drive allows for extremely precise control of parameters such as speed, force, distance, and complete motion profile. This level of control ensures precise weld depth, reaching 0.01 mm, resulting in more uniform welds, less dimensional variation, and greater mechanical resistance of the parts.
The reinforced aluminum structure of the SERVOWELD ensures stability and low vibration, essential factors for maintaining process consistency even in intense cycles and medium- to high-volume applications. The equipment uses a dedicated high-performance ultrasonic generator, designed to maintain stable frequency and amplitude, regardless of load or temperature variations, guaranteeing predictable and repeatable results.
Another important differentiator is the embedded technology. SERVOWELD has multiple pre-programmed inputs and outputs, facilitating integration with automated cells, robots, and industrial systems. Optional Bluetooth connectivity allows for real-time monitoring, remote adjustments, diagnostics, and parameter storage, meeting current demands for smarter, more connected, and traceable processes.
Complementing the line, the SONOWELD and ECONOWELD pneumatic welders remain consolidated solutions in the market. Designed for applications that require reliability and competitive cost, these machines offer stable operation, long service life, and excellent performance in continuous cycles. Their safety systems, such as two-hand control and emergency stop buttons, ensure compliance with industrial standards and greater operator protection.
EQUIPMENT DIVERSITY
Sonitron also presents the SOW 280 Ultrasonic Generators, at a frequency of 20 kHz, and the SOW 100, at 35 kHz. These generators offer robust power, adjustable amplitude from 50% to 100%, and compatibility with different actuators, ensuring consistent results in welding, riveting, molding, and insertion processes in thermoplastics. The electronic stability of this equipment is one of the pillars for the final quality of the ultrasonic process.
For specific or hard-to-reach applications, the company brings to Interplast its line of manual actuators, available in pistol-type and perpendicular models. Lightweight, ergonomic, and versatile, these actuators are ideal for one-off operations, rework, or processes that require mobility and manual precision, without sacrificing the quality of ultrasonic welding.
From an environmental standpoint, the technology is also aligned with modern industrial sustainability practices. The absence of chemical inputs reduces waste and emissions, while precise process control significantly decreases scrap generation. In the case of SERVOWELD, the servo-motorized technology also contributes to lower energy consumption, since the servomotor operates only during movement, unlike pneumatic systems that depend on compressors operating continuously.
This combination of energy efficiency, repeatability, and low waste positions Sonitron’s solutions as technological alternatives that meet not only production requirements but also current demands for cleaner, more efficient, and responsible processes.
ABOUT SONITRON
Sonitron is a Brazilian company specializing in ultrasonic welding technologies for thermoplastic parts, with over 45 years of experience in the market. Based in Santana de Parnaíba, in the state of São Paulo, Sonitron develops and manufactures ultrasonic welding machines, high-performance generators, and manual actuators, serving a range of processes from manual to automated industrial lines. Recognized for its proprietary engineering, the robustness of its equipment, and its customization capabilities, Sonitron serves sectors such as automotive, electronics, appliances, packaging, medical devices, toys, and technical parts, offering reliable, precise solutions aligned with the production demands of modern industry.
