Chintiyan CTC-80S: Non-Destructive Scribing Machine

Chintiyan new energy’s non-destructive scribing machines operate on the principle of laser-induced thermal stress-controlled fracturing. high-energy nanosecond or picosecond lasers create localized thermal zones on the solar cell surface. coupled with micron-level water mist or nitrogen cooling, this generates a controlled temperature gradient. leveraging the property of silicon wafers—compressive strength far exceeding tensile strength—this method ensures cracks propagate precisely along the laser path without damaging the wafer.

Core Role in PV Module Production Lines

The non-destructive scribing machine is the first-stage equipment in module lines, directly affecting downstream quality and line efficiency.

1.Seamless integration: cuts 166–230 mm cells into 2–7 segments (1/2, 1/3, etc.), compatible with high-efficiency perc, topcon, and hjt cells. 

2.Process parameter transfer: high cutting accuracy ensures string welding positioning within ±0.05 mm, preventing power loss from cold joints. 

3.Material utilization: cutting yield >99.5%, improving material efficiency from 95% (mechanical cutting) to 98%, saving over one million yuan per production line annually. 

Direct Impact on Module Performance

1.Power gain: half-cell modules reduce power loss by 2–3% and boost output by 5–10%. a 72-cell module sees gains >10 w. 

2.Enhanced reliability: 

• Resistance reduced to ¼ of traditional modules 
• Hot-spot effects minimized, extending module life by 10–15% 
• Mechanical strength up by 15–20%, reducing microcrack risks 

3.Compatibility optimization: supports narrow-pitch (≤0.5 mm) cell string welding, adapts to shingling upgrades, residential, and utility-scale systems. 

Synergy for Overall Line Efficiency

1.Welding process optimization: smaller post-scribing cells lower welding defects <0.1%, improving string welder utilization to 98%. 

2.Improved lamination quality: flat cut surfaces enhance eva penetration, reducing lamination bubbles to <0.2%. 

3.Inspection efficiency: hidden crack detection in el testing drops from 1.2% to 0.3%; iv testing first-pass rate rises to 99.2%. 

Technical and Economic Advantages

Conclusion

The ctc-80s series non-destructive scribing machine leverages advanced laser thermal stress technology to deliver breakthroughs in cutting precision, heat-affected zone control, and material utilization. its integration with string welders, laminators, and other production equipment boosts line yields >98.5%, forming the foundation for mass production of high-efficiency n-type cells and shingled modules. for modern pv production lines, investing in a non-destructive scribing machine is a strategic move to enhance quality, reliability, and economic performance.