Aluminum Serpentine Tube Bender for Refrigerator Evaporator
Working Principle
This bending machine is a high-precision forming equipment tailored for refrigerator evaporators, drawing on advanced European counterparts for design and further optimized for higher rationality, matching the mainstream process of imported equipment. It belongs to the category of efficient CNC Hairpin Forming Equipment, with stable performance comparable to Fully Automatic Hairpin Bending Machine.
The Fully Automatic Hairpin Bender consists of a coil loader, straightening device, primary feeder, cutting device, secondary feeder, bending and rotary worktable, frame and control system. All actions are driven by a hydraulic system and servo motors, controlled via PLC for stable and precise operation. Compared with similar ordinary models, it overcomes structural defects: the bending wheel set is reinforced with connecting plates to ensure consistent bending radius and angle for multi-tube synchronous forming, avoiding unevenness caused by poor rigidity. The cutting station is rationally arranged behind the feeding mechanism with secondary servo feeding, minimizing material scrap and saving labor and time.
Operating Flow: Put coiled tubes into the loader, thread the tube ends to the primary feeder, and press the start button. The primary feeder conveys tubes to the secondary feeder via the cutting device, then resets; the secondary feeder sends tubes to the bending station for forming. Tubes are cut to the set length automatically, and the whole process runs cyclically with high efficiency.
Machine Functions
1. Capable of bending up to 10 tubes simultaneously, with high forming efficiency.
2. Hydraulic drive for main actions, secondary feeding adopts precise servo drive for stable feeding.
3. Equipped with PLC and touch screen HMI, enabling easy parameter setting and one-key operation.
Quality & Parameters
1. Bent tubes have no obvious bruises or scratches, with smooth and intact surface.
2. Tubes keep flat and uniform after bending, meeting evaporator assembly standards.
3. Bending size range: minimum 180mm, maximum 1000mm.
4. Equipped with a rotary worktable, servo motor and ball screw for accurate and stable feeding.
4. Main parameters | power | 8KW |
| power input | 380V/50HZ three phase four cables |
| compressed air input | 0.5-0.9MPa |
| Overall | 18M by 2.5M |
| Efficiency | 8-12 sec each bending |
| worker needs | 1 |
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