Revolution in Hybrid Connections

Join metal + plastic in seconds

A person adjusting component for a thermal joining process

Revolution in Hybrid Connections

revolution
in hybrid connections

Join metal + plastic in seconds

Revolution in Hybrid Connections

revolution
in hybrid connections

Join metal + plastic in seconds

[02] the mission

We transform manufacturing with thermal hybrid joining of metal and plastic – a fast, cost-efficient, and fully recyclable alternative to gluing, welding, screwing, and overmolding. hyJOIN® enables lightweight & disruptive designs, sustainable production, and a circular future.

[03] benefits

Key Advantages

A checkmar icon

High Performance Joining

A checkmar icon

Media Tight Connections

A checkmar icon

Cost Efficient Process

A checkmar icon

Aging Resistance

A checkmar icon

Lightweight Design

A checkmar icon

Fully Recyclable

[04] thermal direct joining

Our IP. Our Technology.

HYJOIN® provides an innovative solution for metal-plastic joining using the process of thermal direct joining, also referred to as thermal hybrid joining. In this method, the metal is precisely heated so that the plastic melts on contact and, once cooled, forms a durable hybrid bond. This advanced technology replaces conventional methods such as gluing, welding, screwing, or overmolding and enables lightweight, recycling-friendly designs. Discover more about this sustainable joining process, which works entirely without adhesives or additional materials, opening new possibilities for product innovation.

[ 01 ]

Pre-treat

Laser Structuring of Metal Component

Laser Structuring of Metal Component

[ 02 ]

Component Fixation

[ 03 ]

Electromagnetic Induction and Pressing

[ 04 ]

Joined Component
[1/4] pre-treat
[2/4] meet
[3/4] heat
[4/4] complete
[05] industries & applications

Your product with
our solution

Automotive & Mobility

Battery housings & modules (e-mobility), Body & structural components, Interior/exterior parts (handles, consoles, trims)

Consumer Goods & Household

Household appliances (coffee machines, refrigerators, washing machines), Power tools (drills, mixers, garden tools), Sports equipment (bicycle components, fitness gear, outdoor equipment)

Electronics

Connectors & interfaces, Sensor and actuator housings, Thermal management, and cooling solutions (heat sinks with plastic housings)

New Energy

Battery modules & packs, Hydrogen systems (tanks, valves, pipelines), PV & wind components (housings, structural elements)

Healthcare / Medical

Medical device housings (pumps, analyzers, scanners), Sterile instruments (reusable & recyclable), Implant-related components

Aerospace & Defense

Cabin & interior components, Structural parts (titanium-plastic hybrids), Electronic housings (avionics systems)

Industrial Solutions

Pumps & valves, Machine & drive housings, Functional modules for industrial systems

(Any) industry

These are just examples. Our solutions adapt to countless industries wherever plastic and metal need to be joined.

coreJOIN® compact joining module for metal-plastic connection
[07] news & updates

News and updates from the team

Stay hyjoined with our latest updates

No items found.
No items found.
hyjoin GmbH
17 Jun 2026
linkedin
The @The Battery Show Europe is a wrap – and what a week! 
 
Three days packed with conversations, new contacts, and and a motivating feeling that, despite the challenging economic environment - or perhaps because of it - our hyJOIN® technology platform is in demand as an innovator.
 
What we loved most: the strong interest from partners to industrialize thermal direct joining. Exactly the conversations that prove metal-plastic joining isn't a someday technology anymore: it's ready for series!
 
And that's not a tagline: with hyJOIN®, we can go into series in a couple of months. No adhesives, no screws, no curing time – instead powerful, recyclable metal-plastic connections that already deliver today what the industry will be regulated on tomorrow.
 
To everyone we met: thank you for the energy and the trust.
To everyone we missed: let's talk.

Think big. Start joining!

we are on

a mission

[08] we are hiring

Join the club – shape the future of joining

At hyJOIN, we combine industrial excellence with start-up spirit. We are bold, agile, and passionate about technology and sustainability. Join our team and help us build disruptive products, expand into new industries, and drive international growth.

See How To Apply
A person working with a microscope