Assemble 5-piece doors in seconds
without glue, waiting time, or redesign

WW Technologies introduces its latest solutionfor 5-piece doors: SonicLink™.

A drop-in ultrasonic dowel solution that delivers instant, load-bearing joints for industrial door production.

Glue has long defined the pace of 5-piece door assembly. How about we change that ?

Advantages

SonicLink™ replaces conventional glued joints with an ultrasonic dowel
solution that delivers instant, load-bearing connections while fitting
into industrial production setups.
No glue
Eliminates adhesive application,curing time, and climate-dependent variability.
Fully load-bearing
under 5 seconds
The welding process takes approximately 4–5 seconds, after which the joint reaches full mechanical strength.
High mechanical performance
Each pin provides >2000 N breaking strength, achieved immediately after welding.
Hidden, clean joints
No visible fasteners or post-processing operations.
Production-ready quality control
Every welding cycle is monitored and logged to ensure consistent joint quality.
Sustainable material options
Recycled polymers can be used.

Technology used by the best brands

View all
WoodWelding® technology enabled IKEA to implement ’’Easy Assembly’’ for selected flat-pack furniture.
learn more
COLDMELT® technology is the system solution for lightweight material for carpenters and caravan interiors.
learn more
Titus Group designs and manufactures furniture hardware and production machines for the rigid furniture market.
learn more
WoodWelding® technology enabled IKEA to implement ’’Easy Assembly’’ for selected flat-pack furniture.
learn more
COLDMELT® technology is the system solution for lightweight material for carpenters and caravan interiors.
learn more
Titus Group designs and manufactures furniture hardware and production machines for the rigid furniture market.
learn more

How SonicLink works in three steps

1.
Positioning
Stiles, rails, and SonicLink dowels areassembled as in a standard 5-piece door process.
2.
Ultrasonic welding
Ultrasonic energy locally melts the dowel,creating a mechanical interlock betweenstiles and rails
3.
Instant load-bearing joint
Within seconds, the joint solidifies and isfully load-bearing.
The door is ready for downstream processing immediately.

Let’s evaluate SonicLink on your production line

Book a quick 30min intro to the technology.
Bas Albers
+41 762 80 19 73
Bas@ww-technologies.com
Book a free intro call
The discussion typically covers
Your manufacturing setup
An overview of your current production process, equipment, and door architecture.
Key constraints and requirements
Cycle time, quality targets, materials, volumes, and operational limitations.
Fit and next steps
Whether SonicLink is a relevant solution, and how an evaluation or integration could be approached.

Frequency questions

What is ultrasonic welding ?
Ultrasonic welding is a joining technique that uses high-frequency ultrasonic acoustic vibrations to create a solid-state bond between materials, typically plastics or other porous materials. The process involves applying a rapid oscillating motion at the point of contact between two parts, under pressure, to produce a seamless bond without the need for external adhesives, screws, or heat. The friction generated by the ultrasonic vibrations produces localized heat, causing the materials to soften and fuse together. This method is favored for its speed, energy efficiency, and ability to join materials without compromising their intrinsic properties.
How does ultrasonic welding differ from traditional fixation methods ?
WW technologies enable secure fastening in lightweight materials, even under extreme conditions, all within a minimal timeframe. Additionally, it offers unparalleled design flexibility and ensures a clean process. Say goodbye to screws or other messy adhesives.
What materials can be joined using ultrasonic welding ?
The process works on a variety of porous materials. The only requirements are that the substrate has a porous surface and can withstand a certain degree of pressure. Our pins are usually made of thermoplastic except for our Biowelding technology which uses bio-based or biodegradable materials.
How long does the ultrasonic welding process take ?
The total time required is between 1 to 5 seconds.
Are there any limitations or challenges associated with ultrasonic welding ?
Yes and it always depend on the specific use case.
In our non-medical fields, while ultrasonic welding offers numerous advantages, it is particularly optimized for automated industrial production and high-volume manufacturing. This is because there's an initial investment required for ultrasonic machines. Therefore, for smaller production volumes or manual operations, the upfront cost might be a consideration. However, in scenarios with large-scale production, the efficiency and speed of the process often justify the initial investment, leading to long-term benefits and cost savings.