Telsonic Ultrasonics

"The Powerhouse of Ultrasonics"

Swiss ultrasonic technology company founded 1966; global leader in plastic and metal welding, cutting, and cleaning systems for industrial automation.

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Company Overview

Telsonic AG, doing business as Telsonic Ultrasonics, is an owner-managed Swiss company founded in 1966 and headquartered in Bronschhofen, Switzerland (Industriestrasse 6). The company is an international leader in industrial ultrasonic technology, employing more than 300 people across subsidiaries in Germany, England, USA, Canada, Italy, Serbia, China, and Korea.

Telsonic's core competencies cover four major application areas of ultrasonic technology: plastic welding, metal welding, ultrasonic cutting (including food cutting applications), and ultrasonic cleaning and sieving. The company develops and manufactures complete ultrasonic systems — from generators and transducers to sonotrodes and fully automated press systems — for integration into industrial production lines and for standalone operation.

Key product lines include the TSP press series (torsional weld press, featuring Telsonic's patented torsional welding technique that applies ultrasound rotationally for gentle, precise joining without surface marking), the USP press series (linear weld press for standard ultrasonic welding at 20, 30, and 35 kHz), the HandyStar Energy (portable ultrasonic handheld welder), and the Telso Terminal TT6 and TT7 (wire and cable metal welding systems). Vibration welding systems operate in the 95–260 Hz frequency range for large-part assembly.

The torsional welding (Torsional Sonic Welding, TSW) technology is particularly valued in medical device manufacturing because it minimizes particle generation and enables thin-walled, oil- and gas-tight joints — critical for sealed medical housings, fluid-path components, and diagnostic equipment. The automotive industry relies on Telsonic systems for plastic and metal joining of interior components, sensors, and electrical connectors. Packaging and food processing are additional major verticals.

Telsonic is certified according to ISO 9001 (audited by SQS) and applies lean production principles across its manufacturing operations. The company's technical documentation is developed in accordance with ISO/DIS 17100.

With over 58 years in operation, Telsonic serves customers across automotive, medical technology, packaging, food processing, electronics, and general industrial automation sectors, with both standard product lines and custom engineering for specialized applications.

Capabilities & Activities

Primary type & automation activities this supplier delivers:

Applications & Industries

Product Categories

Products & Solutions

Torsional Ultrasonic Welding System

Patented torsional ultrasonic press for gentle, particle-minimized plastic welding of thin-walled and delicate parts including medical devices.

Linear Ultrasonic Welding System

Standard linear ultrasonic press for plastic welding at 20, 30, and 35 kHz for high-volume industrial production.

Partnership & Notable clients

Associating Events

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Contact Telsonic Ultrasonics

WEBSITE

https://www.telsonic.com/

HEADQUARTERS

Industriestrasse 6
Bronschhofen , St. Gallen  9552

Switzerland

Company Facts

Founded

1966

Primary Role

Manufacturer

Company Size

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Primary Region

Europe

Annual Sales

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Funding Stage

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Funding Total

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Certifications & Memberships