Hairpin Bender

Machine drawing of the automatic hairpin bender

The hairpin bender is used to open, straighten, cut and bend copper coils into U shapes, or hairpin pipes. These machines are mainly used for the automatic production of U pipes installed in AC condensers and evaporators.

  • Automatic hairpin bender
  • Quick change over between two tube diameters
  • Automatic conveying tube - collector
  • Multi-center distance
  • Copper black spot detection

Features:
1. The stripper and frame move and bend by servo motor.
2. Driven by frequency conversion motor and fed by belts.
3. Cutter motor is driven by transducer, and the speed
can be adjusted.

Main technical parameters
1 Efficiency (one cycle) L≤ 1000 T<19s
2 Length precision ±0.8 mm
3 Pipe end tolerance ≤1.0mm
4 Flatness rate of bending ≤15 %
5 Power supply 3 phase AC 380V±10 % (three-phase-four-wire mode) 50Hz
6 Total power ≤13KW
7 Pressure of compressed air 0.4-0.6Mpa
8 Cutting mode external cutter
9 Hydraulic system power 2.2 KW
10 Cooling mode wind cooling