justairtech GmbH

About justairtech

justairtech GmbH, based in Munich, is developing a highly efficient refrigeration system that uses air as a natural refrigerant. The target temperature range is 0–40 °C at any ambient temperature; the technology aims to decouple the electricity consumption and CO₂ emissions of refrigeration systems from their proliferation. The core of the technology is a fractal heat exchanger whose fine-structured helix geometry is produced by 3D printing and offers a large surface area for heat exchange despite its compact size. The first product is designed for cooling data centers; further products for commercial and industrial refrigeration are planned. Founded in 2020, the company is in the development stage; market entry is planned from 2028.

Site

München

Processes

3D printing (additive manufacturing of fractal heat exchanger helix structures), Development of highly efficient refrigeration systems using air as refrigerant, Fractal heat exchanger (3D printing)

Materials

Additive Manufacturing

Founded

2020-06

Industries

Data centers, Commercial and industrial refrigeration technology

1. 01

   Engineering & Development

2. 02

   3D Printing (Additive Manufacturing)

3. 03

   Assembly & Plant Engineering

Materials & Processes

Sites

Components

Processes & technical limits

Company History

1. 06/2020

   Founding of justairtech GmbH

2. Q4 2020

   First seed financing round

3. 10/2020

   First patent applications

4. Q4 2021

   Second seed financing round; first patent grants applied for

5. 05/2022

   Prototype of the fractal heat exchanger

6. Q3 2022

   Start-up financing round

7. 08/2022–08/2

   Funding through INVEST (BMWK)

8. Q2 2024

   Physical system prototype

9. Q2 2025

   Start-up financing round II

10. ab Q1 2027

    Beta and field testing

11. Q4 2027

    Start of zero series

12. ab 2028

    Market entry