Full Automatic Return Bender Machine
I Description of return bender machine
This machine is specially designed for decoiling, straightening, bending and cutting coil copper tubes into return U bends and crossover C bends, used in air conditioners and heat exchangers.
This machine is comprised of decoiler, straightening device, bending & cutting device, unloading device, hydraulic system, pneumatic system and PLC control system.
For coil copper tubes diameter not more than 9.52mm (3/8"), below 5-head pay-off device will be used, passive drive, without power.
II Main technical data of return bender machine
| Item |
Data |
| Suitable copper tube material |
TP2 |
| Suitable copper tube reel size |
Max. OD: Ф1100mm; ID: Ф130mm |
| Suitable copper tube diameter |
Φ7.0mm / Φ9.52mm |
| Copper tube numbers |
Max. 5 pieces |
| Cycle time |
< 6s (for U bends) |
| U bend height error |
±0.5mm |
| Length error between two legs |
Less than 0.5mm |
| Radius error |
±0.5mm |
| Pitch error (center distance between legs) |
±0.1mm |
| Straightness error |
Curvature ≤3mm @L=1000mm |
| Flattening ratio at tube ends |
Less than 5% |
| Thinning ratio at loop area |
Less than 30% |
| Burr height at two ends |
Less than 0.2mm |
| Finishing quality |
No wrinkle, scratch, crack, dimple, bulge |
| Total electric power |
5kW |
III Main configuration
-- PLC & HMI: itsubishi from Japan
-- Servo motor and driver: Mitsubishi from Japan
-- Circuit breaker: FUJI from Taiwan
-- Buttons: SCHNEIDER from China
-- Pneumatic components: AIRTAC from Taiwan
-- Hydraulic components: Famous brands from Taiwan
IV Factory facility promising return bender machine quality
We, Nantong Zhenhuan Trade Co., Ltd, established in 2004, is specialized in machine solutions for many years. We can provide good quality machines for air conditioner and heat exchanger production.
Please contact us for more machine details:
Contact:Mr. Franks Cao
Audited Supplier 
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