High Quality Semi-automatic Hairpin Tube Bending Machine
1.Application
The hairpin 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:
| Tubing 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 Compact design, Servo motor driving, Manual feeding, Operation in
manual or automatic mode For o
ption
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 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 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 |
