Tension-wound aluminum fin with a formed foot, wrapped helically around the tube and stapled at both ends — a cost-effective finning method for low-temperature service on thin-walled and expensive alloy tubes.
L-Foot, or wrap-on, fintube is manufactured by first forming a foot on one side of an aluminum fin strip — hence the L-shape — then wrapping the strip tightly around the tube under tension. The short horizontal limb of each L bears against the base tube surface, covering it completely, while staples at each end of the fin secure it against unwrapping.
Because this tension-based attachment requires no grooving of the core tube, L-Foot fin is compatible with thin-walled or expensive alloy tubes that other processes can't use. It's one of the most cost-effective finning methods we offer, well suited to low-temperature service where budget and material flexibility matter more than maximum thermal performance.
A tension-wound process that protects the base tube while keeping cost low.
An L-shaped foot is rolled onto one side of the aluminum fin strip.
The strip is wound helically around the tube under controlled tension.
The horizontal limb of the L bears against the tube surface, covering it completely.
Fin ends are stapled to the tube to prevent unwrapping in service.
Fin height, pitch, and foot contact are verified against specification.
Tension-winding hardware built for cost-effective, groove-free finning.
Forms the L-shaped foot on the aluminum fin strip stock.
Wraps the fin strip helically around the tube under consistent tension.
Fin material selected for the service temperature and environment.
Secures fin ends to the tube to prevent unwrapping.
Verifies fin height, pitch, and foot coverage against specification.
Prepares finished tube for coiled or cut-to-length delivery.
Cost-effective finning for cooling duty below 300°F.
Groove-free finning that preserves thin-walled and expensive alloy tubes.
Broad-contact fin surface for reliable heat transfer in process coolers.