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The 303U-3 is a professional 3-in-1 CNC busbar processing machine that combines hydraulic bending, punching, and cutting functions. Designed for efficient copper busbar processing, this machine is widely used in electrical manufacturing for switchgear and transformer applications. Offers precision operation with 300KN capacity for various industrial needs.
Conclusion: 303U-3 is a CNC busbar bending machine (maximum working envelope 12 × 160 mm; rated force 300 kN; published accuracy ±1°). The machine processes copper and aluminium busbars for switchgear, transformers and power distribution systems. It suits switchgear workshops, electrical equipment plants and busbar assembly lines that need repeatable output.
Condition: processing copper and aluminium busbars on the 303U-3. Value: Maximum thickness 12, maximum width 160. Baseline: against the smaller size class in the same series, which sets the material limit the 303U-3 can handle.
Condition: punching or bending at full stroke on the 303U-3. Value: Rated force 300 kN. Baseline: the rated force is the reference and the die set and stroke are sized to hold it across the cycle.
Condition: accuracy measured over a 500 mm travel on the 303U-3. Value: ±1°. Baseline: positioning accuracy is the reference; working error includes workpiece clamping tolerance and die clearance.
Condition: punching busbar holes to switchgear drawings on the 303U-3. Value: Punching diameter ф4.3～ф25 Baseline: compared with single-die punching, a multi-station cluster completes several hole sizes in one clamping.
Condition: installing the 303U-3 in a production workshop. Value: Machine size 1720×1220×1240 mm, weight 1320 kg. Baseline: against the larger model in the same series, this size drives floor space and shipping plan.
Busbar Punching Shearing Bending Machine For Copper 303U-3 Product Description
LT-303U-3 busbar machine.
CNC single working table busbar processing machine. It has punching, bending, and cutting functions.
The processing size is 12mm in thickness and 160mm in width.
Processing samples
The punching function.
It can punch round hole, oblong hole, and square hole.
The cutting function
The cutting surface is flat and smooth.
The bending function
It can do vertical bending, flat bending, and U-bending.
Other functions
Our Service
We are responsible for your after-sales service.
If you have any problems, feel free to contact us.
You can consult about machine problems, use problems, and other problems that you can imagine.
We have clients more than 100 countries.
Contact Me
WhatsApp: +8613853146766
Skype:Leanne.Li88
Official Website: http://www.busbarmc.com/
E-mail: [email protected]
Technical Parameter
| Items | Model |
| 303U-3 | |
| Nominal force (kn) | 300 |
| Punching dia. range (mm) | ф4.3～ф25 |
| Max. thickness (mm) | 12 |
| Max. width (mm) | 160 |
| Max. shearing thickness (mm) | 12 |
| Max. shearing width (mm) | 160 |
| Max. horizontal bending width (mm) | 160 |
| Max. Horizontal bendind thickness (mm) | 12 |
| Max. vertical bending size (mm) | 10×100 |
| Power (kw) | 3×4KW |
| Bending precision (degree) | ±1° |
| Repeat bending precision (degree) | ±0.5° |
| First table size (mm) | 1650×1050 |
| Second table size (mm) | ----- |
| Outside dimension (mm) | 1720×1220×1240 |
| Container size（mm） | 1800×1300×1450 |
| Total weight（kg） | 1320KG |
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LT Busbar Machine Videos:
303U-3 busbar punching shearing bending machine FAQ: This FAQ provides answers to common questions about the LT-303U-3 CNC single working table busbar processing machine, which is designed for punching, shearing, cutting, and bending copper and aluminum busbars.
1. What functions does the 303U-3 busbar machine offer?
The LT-303U-3 integrates punching, shearing/cutting, and bending functions. It can punch round, oblong, and square holes, cut busbars with a flat and smooth surface, and perform vertical, horizontal, and U-shaped bending.
2. What are the maximum processing dimensions of the 303U-3 busbar machine?
The machine can process busbars up to 12mm in thickness and 160mm in width. The maximum shearing thickness is 12mm, and the maximum horizontal bending width is 160mm. Vertical bending can handle sizes up to 10×100mm.
3. How precise is the bending on the 303U-3 busbar machine?
The bending precision is ±1°, and repeat bending precision is ±0.5°, ensuring accurate and consistent bends for various busbar applications.
4. What type of power does the 303U-3 machine require?
The machine uses a 3×4KW power system, which supports efficient processing across all three functions—punching, shearing, and bending.
5. Can the 303U-3 machine perform additional functions?
Yes, by changing molds, the machine can perform embossing, flattening, twisting, and cable end crimping, making it suitable for diverse electrical busbar applications.
6. Is the 303U-3 busbar machine portable?
The machine is equipped with casters, allowing easy movement to different workstations as needed.
7. Who provides after-sales support for the 303U-3 busbar machine?
The manufacturer provides full after-sales service. Customers can consult about machine usage, troubleshooting, and other technical inquiries via WhatsApp, Skype, or email.
8. What industries or projects is the 303U-3 machine suitable for?
The machine is ideal for high and low voltage electrical industries, large-scale electrical control boxes, and transmission and distribution construction projects.
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