These types of fins are semi-crimped and wrapped under tension around the outside of the base tube. Fins are either tack welded or crimpd to the base tube at each end of the tube. These finned tubes can be further HOT DIPPED GALVANISED for surface protection where as the deposition of Zinc also adds up to the efficiency of finned tubes. Used in Air Heating OR Air Cooling up to 1500 C to 1800 C using Steam / Thermic Fluid / Hot Water as Heating Media OR Water as Cooling Media.
Crimped finned tubes are commonly used in applications
with metal temperatures up to 260 degrees C.
| Tube/Pipe Size | 8 MM to 100 MM outside diameter |
| Fin Height | 5 to 40 MM |
| Wire Thickness | 0.3 to 1.5 MM |
| Fin Per Inch | 2 FPI to 11 FPI |
| Tube Materials | Carbon Steel / Stainless Steel / Copper / Cupro-Nickel |
| Fin Materials | Carbon Steel / Stainless Steel / Copper / Aluminium / Brass |
| Tube Length | No practical limit |
| Operation | Sami automatic |
Fin tube reference
Carbon steel fins are available on carbon, stainless steel, or copper tube. Please call for a specific size if not listed
| Type | Description | Base tube | Fin specification (mm) | ||
| O.D. (mm) | Fin pitch | Fin height | Fin thick | ||
| Embedded | G-type fin tueb | 16-63 | 2.1-5 | <17 | ~0.4 |
| Extruded | Single metal combined metal | 8-51 | 1.6-10 | <17 | 0.2-0.4 |
| Low fin tube t-type fin tube | 10-38 | 0.6-2 | <1.6 | ~0.3 | |
| Bamboo tube corrugated tube | 16-51 | 8-30 | <2.5 | / | |
| Wound | l/kl/ll type fin tube | 16-63 | 2.1-5 | <17 | ~0.4 |
| String | String fin tube | 25-38 | 2.1-3.5 | <20 | 0.2-0.5 |
| U-type | U-type tube | 16-38 | / | / | / |
| Welding | HF-welding fin tube | 16-219 | 3-25 | 5-30 | 0.8-3 |
| H/HH type fin tube | 25-63 | 8-30 | <200 | 1.5-3.5 | |
| Studed fin tube | 25-219 | 8-30 | 5-35 | φ5-20 | |
According to user needs, we can produce all kinds of steel strip winding finned tube and steel aluminum composite finned tube.
Materials
Carbon steel fins are available on carbon, stainless steel, or copper tube. Please call for a specific size if not listed
We offer you a broad portfolio of materials and can expand our offering at any time to meet your specific needs regarding thermal conductivity, mechanical properties, or corrosion resistance.
- Base tube: Carbon steel, Stainless steel, Copper, Cupro Nickel, Aluminium, Alloy Steel
- Fin: Carbon steel, Stainless steel, Copper, Aluminium
- Rings: Carbon steel, Aluminium, Hot dip galvanizing