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With totally 6 sets of high speed wound tension finning machine, which are available for several types of finned tube, such as L Foot Fin, Double L Fin, KL Fin and G-wound up finned tubes, the daily production capacity can reach 6000 meters.
For most projects, the base tube is SA179 Seamless Tube, SA213 TP304 Tube and SA213 TP316 Tube and fin material is aluminium Al1050, Al 1060, Al1100 . But for some customers, they may prefer copper seamless tubes with aluminum G-fins.
Heat Exchanger Copper Tube with G Fin
Technical Specifications:
1)Core Tube:
●Material: Copper alloy seamless tubes according to: ASTM – B111- UNS C44300
●Quantities and Dimensions:
Quantity(tube) | Total Length(mm) | Thickness | OD (mm) |
400 | 6010 | 2.5 | 25 |
2)Fins:
●Dimensions
OD (mm) | Type | Thickness (mm) | Fins per Inch |
52 | G(Wound Up) | 0.3-0.4 | 10 |
●Material: Aluminum.
●Free ends (Without Fins): (50-55) mm
General Requirements by customers for Copper Tube with G Fin
Test reports for required materials are according to ASTM – B111- UNS NO: C44300. Results of test reports should be submitted with the delivered materials.
Seaworthy Packing in wooden cases according to ASTM A700 -05
Guarantee: One year from the date of primary Receipt.
As a fin tube manufacturer, we are approved by an internationally recognized management system standard (ISO 9000) series .This certificate must be valid and applicable to the offered materials. A copy of this certificate should be attached to the technical offer.

Tubes (Cu:NI:90:10): 24 mm OD x 22 mm ID x 2990 mm Lg.= 190 Nos.
Fin : OD 39 mm
Type of Finning : G-Embedded or Extruded
Groove Depth: 0.3mm (Max.)
Material and thickness of fin plate: Copper and 0.4 mm
Pitch of fins: 13 fins/Inch
Quality control on copper tube with G Fin
Material inspection on MTC, surface visual and dimension check
Fin inspection during production and make records
Final random inspection and make records
Package them in seaworthy wooden cases