Double L-type Aluminum Fin Winding Machine
Produce double L-type finned tubes at 700 RPM with synchronized multi-section control.
Industrial fin winding system for heat exchanger manufacturers requiring consistent L-type finned tube production. Eliminates manual speed matching between operations through unified electronic control, reducing defective rates while handling tubes from φ4.0-50mm across multiple pipe materials on a single platform.
Key Specs
Key Specs
Power
Speed
Overview Points
Universal Tube Compatibility
Synchronized Control System
High Speed Production
Flexible Fin Specifications
Direct Tube Clamping
Precision Speed Control
Extended Frame System
Complete Supply Package
Key Features
The triangular roller, base tube feed, fin forming device, and fin winding head all operate under unified electronic control. This consistent synchronization across every section eliminates the timing drift that causes rejected tubes, directly reducing your scrap rate and material waste.
One machine handles round tubes from φ4.0mm up to φ50mm in stainless steel, carbon steel, seamed pipe, galvanized pipe, copper, or aluminum — with aluminum fin heights up to 15mm and copper fins up to 12mm. Switching between product specifications requires only a die change ($680 per set), not a second production line, saving floor space and capital.
A 3kW motor drives the system through a reduction box and infinitely variable transmission, controlled by a frequency converter. Operators can fine-tune winding speed up to 700 RPM and adjust the spindle motor’s relative speed during front-to-rear transplanting movement, reaching the optimal winding state without trial-and-error downtime.
Three transmission shafts drive the triangular rollers through the reduction box, distributing load evenly and reducing wear on individual components. The aluminum extrusion frame provides structural rigidity while keeping overall machine weight manageable for factory floor installation and repositioning.
The spindle cylinder clamps tubes automatically, and the transplanting mechanism coordinates front-to-rear movement with the spindle motor. The integrated control cabinet consolidates all operational parameters in one location. The machine ships complete — main unit plus control cabinet — with a 45-day lead time after deposit, ready to connect to your existing upstream and downstream material handling.
Technical Specifications
The operation of the triangular roller, base tube, fin forming device and fin winding device has achieved consistent control, and the operation of each section can be kept highly synchronized, which improves the working efficiency of the finned tube production equipment and reduces the defective rate; Different types of finned tubes can be produced on the same equipment with less stringent requirements for base tubes, saving production sites and reducing production costs.
| Fin type | L type. |
| Tube specification | φ4.0- 20mm / 20-50 round tube |
| Pipe type | stainless steel pipe, carbon steel pipe, seamed pipe, galvanized pipe, copper pipe, aluminum pipe |
| Fin height | 4 -15mm |
| Fin thickness | 0.35 – 0.6 mm Customized |
| Fin material | aluminum sheet, copper sheet (the height of the copper sheet is not more than 12 mm, and the distance between the sheets is not less than 2.54 mm) |
| Fin spacing | 2.0—10 mm |
| Speed | 700 rpm |
| Motor power | 3kw |
| Scope of supply | main engine and control cabinet (front and rear feeding and discharging brackets are self-made, not included in the scope of supply) |
| Price basis | FOB Shanghai |
| Payment | 30% down payment by T/T, the balance before shipping. |
| Lead-time | within 45 days after receiving down payment |
| Unit price | USD 48,850 (Single station single tube 8 meters) |
| Extra dies | 680$ per set |
Applications
Heat exchanger manufacturing for HVAC condensers, evaporators, and economizers
Refrigeration system finned tube production
Industrial boiler and radiator tube fabrication
Air preheater and waste heat recovery tube winding
Power plant and petrochemical heat transfer equipment production
Custom finned tube fabrication for OEM heating element suppliers
Video
FAQ
The key specifications of Double L-type Aluminum Fin Winding Machine include: Power: 3kw, Speed: 700 rpm. Contact us for the full specification sheet.
Double L-type Aluminum Fin Winding Machine is widely used in: Heat exchanger manufacturing for HVAC condensers, evaporators, and economizers; Refrigeration system finned tube production; Industrial boiler and radiator tube fabrication; Air preheater and waste heat recovery tube winding.
All NTBOBO machines come with a 1-year warranty from the date of Bill of Lading. Our engineering team provides 24-hour technical support throughout the warranty period.
We accept 30% down payment by T/T (Telegraphic Transfer), with the balance due before shipment. Other payment arrangements can be discussed for long-term partners.
Standard delivery is within 10-35 working days after receiving the down payment, depending on the machine model and customization requirements.
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