Integrated Bundy Tube Straightening Cutting And Bending Machine
Fully automatic Bundy tube straightening, cutting, and bending in one integrated line.
This integrated production line transforms coiled steel and Bundy tubes (4-8mm) into precision-bent refrigeration components through automated straightening, chipless cutting, and servo-controlled bending. Designed for condenser manufacturers requiring consistent tube geometry and weld-ready finishes in high-volume production environments.
Key Specs
Key Specs
Overview Points
Single-Line Integration
Servo Precision Control
Chipless Cutting System
14-Roller Straightening
Variable Speed Control
Distortion-Free Bending
Quick-Change Tooling
Industrial Reliability
Key Features
Two dedicated servo motors — one for feeding, one for bending — provide repeatable positioning accuracy matched to your engineering drawings. The TECO PLC paired with a 7-inch TAIAN HMI stores over 100 product programs, each supporting up to 75 individual bends, so operators can recall complex tube geometries instantly without reprogramming.
Coiled tube feeds from a floor-mounted decoiler through 14 straightening rollers (7 vertical + 7 horizontal), then into chipless rotary cutting and pneumatic-clamped bending — all within a single 32 m × 3 m footprint. This eliminates inter-station handling, reduces work-in-progress inventory, and cuts cycle time compared to separate standalone machines.
The 360° rotary cutting blade paired with two-point clamping delivers chip-free cuts with smooth end surfaces and high concentricity. This directly improves welding quality in subsequent condenser assembly, reducing reject rates and rework on the production line.
The three-part clamping die and quick-change mould system allow operators to switch between tube diameters (4–8 mm) and different bend radii with minimal tooling time. For facilities producing multiple condenser models, this flexibility translates to higher equipment utilization and shorter lead times.
Schneider contactors, Omron encoders, and VDE-standard wiring with full plastic comb-hole cable management ensure consistent electrical performance. Overload protection, emergency stop switches, guarded hazard zones, and clear component labeling meet international safety expectations for factory-floor operation in ambient conditions from −15°C to 40°C.
Technical Specifications
This is a fully automatic steel pipe bending machine. It could be applied for tube diameter range 4- 8mm.The first manual material and cut off the size. The operation process is as follows: manual loading and cutting to size, automatic feeding and gathering, automatic feeding and threading, automatic pipe bending.
Three-part clamping die to minimize tube distortion, get smooth cutting end surface. High accuracy concentricity ensures to get good welding quality in following process. Chipless cutting with 360° rotary cutting blade and stretching with two points clamping. Straightening wheel work on the steel tube from both vertical and horizontal directions. Tube Diameter from 4-6.35 is suitable for floor mounted decoiler.
Tube clamping mechanism: Pneumatic clamping
Clamping of the front and rear clamping dies, ring cutting of the cutter.
The main electrical components such as air switches, selector switches and intermediate relays in the centre of the control cabinet are safe and reliable.
The control circuit has an overload protection function and is equipped with an emergency stop switch. At the same time, the installation of the electrical components of the equipment conforms to the relevant national regulations
Reliable earthing device, terminal blocks, contactors and small air switches in the electrical box are installed in VDE standard V-slot
The electrical components are clearly marked and the electric control cabinet is wired with a full plastic comb-hole cabinet with a clear line number, a neat control panel and a clear and easy to read label subtitle. Guards or warnings are provided for all areas involving personal safety.
Operating temperature – 15°~40°
Operating ambient relative humidity (at 25°C):70%
| 1 | MainFrame | Homemade | Welding |
| 2 | Painting | Homemade | PowderCoating/ |
| customizedcolor | |||
| 3 | Inverter | TECO | SpeedAdjustment |
| 4 | PLC | TECO | CE/FC |
| 5 | HMI | TAIAN | 7’’ |
| 6 | Encoder | Omron | CE |
| 7 | Contactor | Schneider | CE |
| 8 | Cylinder | CHNT | CE |
| 9 | Motor | Localbrand | CE/CCC |
| Parameter | Data | |
| 1 | TubeMaterial | Steeltube/Bundytube |
| 2 | TubeDiameter | 4-8mm |
| 3 | TubeThickness | >0.5mm |
| 4 | CuttingLength | >50mm |
| 5 | WorkSpeed | 0~60m/min,adjustablebyInverter |
| 6 | CuttingTolerance | 0.5mm/ 1m； ±1mm/ 18m |
| 7 | ControlSystem | PLCcontrol/HMI |
| 8 | AirPressure | 0.6-0.8MPa |
| 9 | DriveMotor(Servo) | 112V0- 167HZ1.5KW2000r/min |
| 10 | Cut-offMotorPower(AC) | 220V/380V50HZ0.37KW |
| 11 | Verticalandhorizontal straighteningrollers | 7+7material:45#steel |
| 12 | Sizeofcutterblade | Sizeofcutterblade: 63*22*1.0mm |
| 13 | Positioning precision of bending axis | According to the drawings |
| 14 | Servo motor 2 sets: one is for feeding and another for bending | 3AC 150V 9.6A2KW2000r/min 68mV/min |
| 15 | Electric Supply | 380V3phrase50HZ |
| 16 | Total length and width of the machine | 32m*3m*1.85M |
| Hexagonaltools | 1 set | freespares |
| Inductionswitches | 2pieces | freespares |
| Cylindercouplings | 10pieces | freespares |
| Blades | 5pieces | consumables |
| Belts | 1set | consumables |
Applications
Wire-on-tube condenser manufacturing for household refrigerators and freezers
Bundy tube processing for commercial refrigeration and cooling systems
Heat exchanger tube fabrication for HVAC equipment
Automotive condenser and evaporator tube preparation
Small-diameter steel tube forming for industrial heat transfer components
Refrigeration component production lines requiring integrated straightening, cutting, and bending
Video
FAQ
Integrated Bundy Tube Straightening Cutting And Bending Machine is widely used in: Wire-on-tube condenser manufacturing for household refrigerators and freezers; Bundy tube processing for commercial refrigeration and cooling systems; Heat exchanger tube fabrication for HVAC equipment; Automotive condenser and evaporator tube preparation.
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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