I Description of automatic copper tube expanding machine
This machine is designed in horizontal auto-changing forming station, capable for various copper tubing works, such as expanding, reducing, ribbing, beading, flaring, skirting, mouth ordering, etc.
There are six stations, five are of direct-pushing type, one stations is of spindle-rotating type which is used for chamfering. Exchanging among 6 stations is achieved by servo motor and program preset on HMI.
This machine is equipped with hopper for blank tubes, auto feeding.
This machine is PLC control, HMI operation, simple and convenient.
II Main technical data of automatic copper tube expanding machine
| No. |
Item |
Data |
| 1 |
Applicable copper tubes |
Straightened cut tubes |
| 2 |
Applicable copper tube diameter |
Max. 60mm |
| 3 |
Applicable copper tube wall thickness |
Max. 2.5mm |
| 4 |
Min. cut tube length |
40mm |
| 5 |
Min. linear length of reduction/expansion |
20mm |
| 6 |
Max. processing stroke |
100mm (adjsutable) |
| 7 |
Coaxiality between finished end and tube center |
Less than 0.1mm |
| 8 |
Out-of-roundness of finished end |
Less than 1% of tube diameter |
| 9 |
Max. Processing depth error |
Less than +/-0.5mm |
| 10 |
Single action duration |
2-3 seconds |
| 11 |
Hydraulic pressure |
Max. 12MPa |
| 12 |
Hydraulic pump motor power |
7.5kW |
| 13 |
Spinng motor power |
3.75kW |
| 14 |
Servo motor power |
0.75kW |
| 15 |
Reducing / expanding die material |
Cr12MoV, quenched HRC 58-62 |
| 16 |
Hydraulic station cooling method |
Compulsive air cooling |
III Main configuration of automatic copper tube expanding machine
- PLC & HMI: Mitsubishi from Japan
- Pneumatic components: AIRTAC from Taiwan
- Servo motor: Mitsubishi from Japan
- Limit switch: Autonics from Korea
- Ball screw: TBI from Taiwan
- Buttons & relays: IDEC from Japan / SIEMENS from China
- Main bearings: NSK from Japan
- Hydraulic pump & valves: famous brand from Taiwan
IV Factory facility assuring copper tube expanding machine quality
Our Nantong Zhenhuan Trade Co., Ltd., established in 2004. is a private owned manufacturer and export agent of metal related fabricating & forming machinery.
Our products cover a full range of HVAC ventilation duct machines, transformer manufacturing related machines, motor making machines, lead-acid battery making machines, heat exchanger making machines, air-conditioner and refrigerator making machines, steel pipe forming & processing machines, tube/pipe fabricating & processing machines, steel tank making machines, steel wire bending machines, etc.
Focusing on international trade, we have placed our priority on both machine quality and service, which are the key elements that make your band more competitive in the global market. If you are looking for machines, components, OEM products, Zhenhuan Machines will be your most reliable partner.
We are ready to establish a long business relationship with your esteemed company as a supplier, a partner and a friend. We warmly welcome you from worldwide.
Audited Supplier 
There are six stations, five are of direct-pushing type, one stations is of spindle-rotating type which is used for chamfering. Exchanging among 6 stations is achieved by servo motor and program preset on HMI.
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