Embedded Fin Tubes (G-FIN)

The G-type fin (embedded fin) is made by tension winding the fin strip into a groove machined on the outer surface of the tube and then back-filling with base tube material to lock the strip onto the tube.

Operating temperature: around 400°C – 430°C.
Embedded Fin Tubes (G-FIN)
Tube Material Wall Thickness Tube Diameter Tube Length
All types Min. 1.65 mm
0.065 in
15.88 / 50.80 mm
0.625 / 2 in
Max. 18500 mm
728 in
Fin Strip Material Fin Strip Thickness Fin Pitch Production Capacity
Aluminum From 0.4 to 0.5 mm
From 0.015 to 0.019 in
From 8 to 11 fins/inch 6000 m per day


G, L, LL or KL finned tubes are used in air coolers, heat exchangers and manufacturing plants in general.


We offer different packaging solutions in order to meet your needs:
  • ISPM 15 wooden crates
  • wooden cages
  • industrial wire baskets


registered office valtecno
Registered office
Via Piana, 50
47032 Bertinoro (FC) - Italy
VAT number and fiscal code: 02264570405
operational headquarters valtecno
Operational headquarters
Via Piana, 50
47032 Bertinoro (FC) - Italy
Tel. + 39 0543 449206
team valtecno
Write us for information

I hereby authorize the full use of the data I provide after having read and understood in its entirety the privacy policy in accordance with the European regulation GDPR 2016/679.

I have read and I agree