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Non-Destructive BC Laser Scribing Machine

CTC-20SBC scribes 156–230mm cells at ≥1600 pcs/h (half‑cut), fully automatic, non‑destructive: no micro‑cracks, minimal dust, no fire risk. Suitable for high-precision solar cell cutting and the manufacturing of high-efficiency modules such as TOPCon, HJT, and BC.


Details Introduction


The CTC-20SBC is an automated system designed for non-destructive laser scribing—minimizing surface damage to the solar cell and generating negligible dust during processing. It is ideal for high-efficiency cell manufacturing scenarios (such as TOPCon, HJT, and BC technologies) that demand high cutting precision and superior surface quality. The system features a cooling unit to effectively manage thermal effects during the cutting process. By integrating advanced automation technologies—including motion control cards, sensors, servo systems, lasers, and CCD vision systems—it achieves fully automated processing, covering everything from loading and scribing to non-destructive breaking, separation, inspection, and unloading.

 

 Laser Grooving of Regularized Cells. Slotting Length≤2mm The solar cell conveyor transports the cells to the CCD inspection station.
 The drying system will remove the residual water stains on the surface of the cell.  Slice Cooling System
 Comprehensive positioning accuracy, positioning deviation ≤±0.05mm  Non-destructive cutting technology. Very little damage to the cell surface

Parameter


Equipment Parameter

 Model  CTC-20SBC Non-destructive Scribing Machine
 Cell Size  156 x156~210x210mm.
 Thickness 80~220um
 Uptime Rate  ≥ 95%
 Production Capacity  Duplexing ≥1600pcs/h
 Split Rate  ≤0.2%
 Scribing Speed  ≤500mm/s
 Average Laser Power  60 W/300-500W
 Laser Life/Warranty  Warranty 20000 hours
 Detection  CCD
 Feeder Detection  Positioning and defect detection (chipping, chipping, cracking, 90° flip, dirt, scratches, etc.)
 Comprehensive Positioning Accuracy  Positioning Deviation: ≤±0.1mm
 Angular Deviation: ≤±0.04°
 Unloading Detection  Detection of cracks, chipped edges and corners, large and small pieces, etc.
 Power Supply  Three-phase 380V, 50Hz
 Three-phase five-wire system (L1/L2/L3/N/PE), into the line specification 4x10mm² + 1x6mm²
 Wattage  Average power 10kW, peak power 20kW
 Laser Chiller  Cooling water: 20 L; pure water, regular replacement
 Lobe Cooling System Water  Deionized water, or purified water
 Air Source  Pressure 0.6-0.8Mpa; air consumption: ≥1200L/min; air inlet main pipe using a φ16mm hose at the same time into the air
 Compressed air quality requirements:
 Maximum solid particles: 15μm (Grade 3); minimum pressure dew point: +3℃ (Grade 4); maximum oil mist concentration: 5mg/m3 (Grade 4)
 Air Exhaust System  Top exhaust pipe diameter Φ102mm, pipe diameter required 104mm; comprehensive exhaust flow rate is more than 300m³/h;
 Exhaust gas temperature is high, exhaust pipe is recommended to use PVC pipe
 PLC  Peifu Compact Industrial PC
 HMI  Easy Control World's upper computer software includes parameter setting, troubleshooting, alarm, product statistics, status records, etc.
 MES Interface  Ethernet port is reserved to support TCP/Ip and Peifu ADS protocol.

Keyword:

Non-Destructive BC Laser Scribing Machine

What is the Solar Panel Manufacturing Process?

Cells are loaded by an automatic loader. For half‑cut or third‑cut, cells go through a laser scribing machine for precise splitting. The cells are then fed into a stringer, where ribbons are soldered to form cell strings. After stringing, a bussing machine interconnects the strings, followed by layup, lamination, framing, junction box attachment, and final testing (EL and flash test). The stringer machine and laser scribing machine are the most critical pieces, they determine breakage rate and soldering quality.

How to Calculate Annual Energy Production From Solar Panels?

Simply multiply the total panel power (in kW) by the annual peak sun hours in your location, then apply a system efficiency factor, typically around 80%, to get a rough estimate. But from a manufacturing equipment perspective, what matters just as much is ensuring that processes like stringing and lamination don’t introduce micro‑cracks or poor soldering, because those issues will directly reduce the panel’s actual output.

Is BC technology the Future?

BC (Back Contact) technology is undoubtedly a key direction for next-generation high-efficiency PV modules. Its busbar-free front side offers not only superior aesthetics but also significantly reduces shading, leading to higher light absorption and increased power output. Rather than simply declaring BC as the only future,In fact, BC is a platform technology that can be combined with techniques such as Topcon HJT and perovskite tandem cells to squeeze out the last drop of efficiency gains.

Therefore, we believe BC technology will remain at the forefront of the upcoming technological transformation, making now the opportune moment to invest in BC.

What is Your Collaboration and After-Sales Process?

From project discussion to stable production, we provide complete technical support and long-term after-sales service to ensure a smooth and efficient cooperation experience.

1. Requirement Discussion

We communicate with you in detail to confirm product specifications, production capacity, factory conditions, and technical requirements, then provide a suitable production line solution.

2. Solution Confirmation & Contract

After confirming the technical proposal, both parties finalize the equipment configuration, layout, delivery schedule, and commercial agreement.

3. Equipment Manufacturing

While your factory prepares utilities and workshop conditions, we carry out equipment production, assembly, and internal testing.

4. Factory Acceptance Test (FAT)

Before shipment, customers can inspect and test the production line at our factory to verify equipment performance and operating conditions.

5. Shipment & Installation

The equipment is shipped to your factory, and our engineers provide on-site installation guidance and positioning support.

6. Commissioning & Site Acceptance

After installation, our engineers complete commissioning, parameter adjustment, and final testing to ensure the line operates according to agreed standards.

7. Training & Trial Production

We provide operation and maintenance training for your team and assist with trial production until stable operation is achieved.

8. Long-Term Technical Support

We provide continuous after-sales support, including remote assistance, spare parts supply, troubleshooting, technical upgrades, and maintenance support to ensure long-term stable production.

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