- Product Name: Low Fin Tube Extruding Machine / Inner Grooved Plowed Low Fin Tube Rolling Forming Machine
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Low fin tube machines are specialized equipment for manufacturing low-fin tubes, also known as fin tube rolling mills. Their core function is to use a mechanical rolling process to integrally form low-height, high-density ribs (fins) on the outer surface of a metal plain tube (base tube) in a single operation. This significantly increases the heat transfer surface area and enhances heat exchange efficiency.
I. Low Finned Tube Making Machine Core Functions & Process
- Processing Principle
Base tubes (such as aluminum, copper, carbon steel, or stainless steel tubes) are fed into the machine. Precision cutting tools perform roll pressing to plastically deform the tube wall material, forming uniform fin structures. The process comprises three stages: biting-in, rolling-extrusion, and shaping, ensuring smooth, intact fins that are integral with the base tube. - Process Advantages
- Zero contact thermal resistance: The fins and base tube form a monolithic structure, eliminating heat transfer efficiency losses caused by welding.
- High deformation resistance: The rolling process enhances the strength of the fin roots, preventing deformation or detachment.
- Wide applicability: Capable of processing single-metal tubes (pure aluminum, copper, steel) or bimetal composite tubes (e.g., steel-aluminum, copper-aluminum).
II. Low Fin Tube Extruding Machine Key Performance Parameters
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Products Name
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Out fin and inner grooved tube machine(Low fin tube machine )
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Main motor
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7.5kW 1440rpm
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Producing speed
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0.80~1.20meter/min (the speed is different according to different tube specification)
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Tube to be produced
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12.7mm~25.4mm
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Fin numbers (each inch)
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19~60fins (for stainless steel tube max fin number is 40fins)
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Fin height
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0.7mm~1.6mm (copper tube)
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Inner groove number
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8~70teeth(70teeth only for copper tube)
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Tube length
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300mm～6000mm
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Tube material
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Copper, aluminum, copper nickel, brass, carbon steel and stainless steel tubes
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Compressed air pressure
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0.4-0.8Mpa 0.2m3/h
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Machine overall dimension
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13500mm x 1350mm x 1150m Length x Width x Height
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Electricity power
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380V 50HZ 3phases
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III. Inner Grooved Plowed Low Fin Tube Rolling Forming Machine Application Fields
Fin tubes produced by low-fin tube machines are primarily used in high-efficiency heat exchange scenarios:
- Air conditioning systems: Core heat exchange components in condensers and evaporators, utilizing fins to expand heat dissipation area and improve energy efficiency.
- Industrial equipment: Low-temperature heat exchangers for petrochemical, power, and air separation units, suitable for highly corrosive or cryogenic environments.
- Workshop cooling: Carbon steel fin tube radiators for efficient temperature control in machining and electronics workshops.