PROSONO Ultrasonic Welder
Reliable, high-quality welding of tubes in refrigerant circuits

Designed for simplicity – Engineered for reliability
The PROSONO ultrasonic welding system utilizes advanced ultrasonic friction welding technology to create a secure, leak-proof seal on refrigerant tubes.
The process is monitored and supervised for targeted material softness and is completed under one second.
Precisely controlled energy consumption ensures long service life of the welding tools. The ECO Function reduces electricity and compressed air consumption by automatically shutting down the flow of cooling air during idle periods.
Performance you can trust. Benefits you can measure
Low Total Cost of Ownership
PROSONO delivers substantial savings with low lifetime cost. It consumes 30-40% less energy than comparable systems, due to its optimized welding process, leading to lower operating cost and extended tool life.
Plug and play setup
From the moment you unpack the PROSONO it is ready for use. The welder comes preconfigured, requiring only two simple parameter adjustments to begin welding. Operators can be trained and fully operational within minutes, ensuring fast deployment and minimal setup time.
Superior quality and reliability
PROSONO is engineered for consistent performance and long-term durability. Its rugged mechanical design ensures stable welding results with minimal risk of breakdowns, reducing maintenance and maximizing uptime.
Maximized uptime and easy maintenance
PROSONO requires only simple calibration and has no delicate sensors or complex electronics. The simple change of sonotrode and other wear parts can be done in just a few minutes. Thanks to the vertical movement of the anvil, the welding point remains consistent even when adjusting the tube stop, eliminating the need for re-alignment.


Feature highlights
- Robust, industry-grade design for long-term reliability
- Safe and easy operations for all user levels
- Certified for Ex environments and CE compliant
- Fast welding cycle - under 1 second
- Dynamic process control for key parameters: height, energy, time
- Supports left cut, right cut, no cut, and twin weld configurations
- Simple maintenance for minimal downtime
- Quick and easy replacement of tools to maximize productivity
- Integrated data collection with PLIS Factory for traceability and process optimization
- Global service and support

Seamless integration with PLIS for smarter welding overview
PLIS Factory manage and controls welding operations through automatic recipe selection that enables operators to scan a barcode and receive the correct welding recipe instantly sent to the PROSONO. This automation reduces setup time, minimizes human errors and ensures consistent weld quality. PLIS also collects detailed result data from every weld, enabling traceability, quality assurance, and continuous process improvement.
Perfect companion with NO-ZONE Charging Solution
The NO-ZONE Charging Solution and PROSONO are the ultimate pair for safe and efficient refrigerant charging process. Safely charge with the NO-ZONE solution and weld the pipes afterwards with PROSONO without comprimising safety.

PROSONO welder
Simplicity, easy maintenance & long-lasting tool life
– delivering real savings in total cost of ownership
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PROSONO?
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