SMAC- High Class Auto Hairpin Bender Pipe Bending Machine for Heat Exchanger

1. Structure: Servo length fixing and return material, hydraulic system using constant rate vane pump, swing cylinder drive bending. 

Electric drive de-coiler rack, aluminum alloy tray (load capacity ≤ 150Kg).

Rack（inside pumping type）

2. Straightening device: the alignment wheel is arranged in the horizontal and vertical surface, it rounding and straightening the cooper tube from two sides, each copper tube has four rounding wheels and 12 alignment wheels, which 1 rounding wheel and 4 alignment wheels through the eccentric shaft adjustment, in order to ensure the straightness of hairpin tube.

3. Short of Material detection: the use of photoelectric switch detection, arranged in front of the alignment wheel.

4. Feeding device: use of friction feeding, the structure is the cylinder presses the belt with feed. Hydraulic oil motor drive feed, high and low speed hydraulic valve easy to achieve by the slow (starting) → fast → slow (in place) the work of the beat to ensure high efficiency and the quality of the workpiece.

5. Feed in place with the sensor switch detection.

6. Cooper tube cutting device: use of external hob cutting cooper tube, cutting spray fog lubrication, each cooper tube cutting depth can be adjusted separately to ensure that the copper pipe cutting synchronization, shrinkage less, after cutting , the feed belt reverse to separate the cooper tube.

7. Bending device: composed by the bending clamping, bending rotation, bending mold up and down and other parts. To ensure reliable clamping when bending, one cooper tube with one bending mold, each bending mold with a clamping cylinder. 

8. Clamp length adjustment device: if the hairpin length specifications changes, it should be adjusted by length adjustment device, length adjustment device has the following parts.

① bending length adjustment: used to adjust the length of the workpiece after bending,

② Guide rack, feeder adjustment device: According to the hairpin tube different lengths, the equipment is equipped with different length of the guide rack. Or through changing the distance between the picking arms, or increasing the number of picking arms to meet the different lengths of the workpiece picking up.

9. Machine equipped with safety photoelectric protection devise on both sides of the equipment.

10. Hydraulic station arranged in cutting frame, it is used of constant rate vane pump with air cooler.