Gasgoo Awards 2022 applicant: two-piece folded tube from Gränges

For the Gasgoo Awards 2022, the two-piece folded tube from Gränges has applied for the Top 100 Players of China's New Automotive Supply Chain.

Photo credit: Gränges

Description:

Two-piece folded tube is produced by precise roll forming of an aluminum tube stock material, which outside tube and inner fin are formed separately and then assembled to be a whole tube.

Photo credit: Gränges

Folded tube can be used as refrigerant tube in brazed aluminum heat exchangers such as condensers and evaporators for automotive, as well as air conditioning and refrigeration applications. Combining Folded Tube technology with Gränges’ portfolio of tube stock materials enable high reliability, light weight, cost reduction and improved performance.

Unique Advantages：

1) Performance improvement

>>Higher strength

>>Higher burst pressure

>> Better heat transfer

2）Design freedom

>> Wider range of materials

>> Compact design

>> Smaller unit

3) Weight savings

>> Lower tube weight

>> Thinner fin (unclad)

>> Lower unit weight

4）Cost savings

>> Cost savings on raw materia

5) Improved sustainability

>> Lower CO2 footprint

6）Corrosion resistance

>>Superior corrosion resistance

Application:

Folded tube can be used as refrigerant tube in brazed aluminum heat exchangers such as condensers and evaporators for automotive, as well as air conditioning and refrigeration applications

Prospect:

Trend is going towards folded tube condenser technology with high performance density and excellent corrosion properties. The production of Gränges folded tube will reach 5000tons in 2025.