Wuxi Wondery Industry Equipment Co., Ltd
Advantages: More than 10 years experience in industrial equipment; Advanced processing equipment and technology; Full technical support for pre-sales and after-sales; A team of senior engineers for
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Hairpin Tube Semi Automatic Bending Machine Coil Tube Bender
1.Application
The hairpin tube bender machine is one of the necessary equipment of HVAC
production line. We have full range HVAC equipment such as high speed
fin press, progressive fin die, servo type tube expanding machine, semi
automatic and fully automatic hairpin bender, etc. This semi automatic
hairpin bending machine has the functions of manual feeding, servo
positioning, servo bending, and servo unloading. The hairpin length
ranges 200-3000mm. The tube diameter ranges from 7mm-16mm.
The production efficiency can be 2-5pcs per cycle.
2.Technical Parameters
| Tube Diameter | O.D. 9.52/12.7mm |
| Hairpin length | 200-3000mm |
| Working efficiency | 9.52 *2 + 12.7 * 2 tubes/cycle |
| Normal voltage | 380V, 3P,50Hz |
2.1 Structure Characters:
2.1.1 The semi automatic hairpin tube bender machine has a compact
design, servo motor driving, manual feeding, and operation in
manual or automatic mode for option.
2.1.2 Process of automatic operation mode is material feeding by manual
→mould tooling clamping→ oil spraying → bending → mandrel back →
clamp loose → unloading → unloading home → bending tooling home
2.2 Hairpin Leg difference in length less than 0.5mm
2.3 No obvious clashing, abnormal “bump”, corrugation neither other
deficiency. Ellipse less than 8%
2.4 Roundness tolerance of bend area <±.012”;
2.5 Parallel tolerance for the two straight legs ≤3%;
2.6 Running and operating smoothly.
3.Performance parameters of tube bending machine:
3.1. Working efficiency: 12 seconds per cycle taking 1 meter as example.
Pneumatic air consumption 3.5 cfm
3.2. Air cooled
4.Lubrication system
Expanding rod with lubrication holes and control by solenoid valve which allow oil
spray every setting seconds (Injection time can be adjusted)
5.Equipment Components
| No. | Item | Brand |
| 1 | PLC | Mitsubishi brand |
| 2 | Servo motor | Mitsubishi brand |
| 3 | Servo driver | Mitsubishi brand |
| 4 | HMI | Mitsubishi brand |
| 5 | Hydraulic valve | Yuken brand |
| 6 | Pneumatic system | Airtac |
| 7 | Ball screw | ABBA brand |
| 8 | Electrical components | Schneider |
| Note:The above configuration of the coil hairpin tube bending machine can be changed to brands of equivalent level without noticing the customer due to component availability. | ||
6.Spare parts
| NO. | Item | Remarks |
| 1 | Bending mandrels | 4 Pcs each size |
| 2 | Mandrel connecting rod | 4 Pcs each size |
| 3 | Stripper tubing Only (not Assemblies) | 2 Pcs each size |
| 4 | Sensor Limit Switch | 2 Pcs |
| 5 | Bending Oil hose | 2 Pcs |