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    Our Latest Blog

    Can Cold Solder Joints in a PV Junction Box Cause Diode Breakdown and Burnout?
    20 Jul

    Can Cold Solder Joints in a PV Junction Box Cause Diode Breakdown and Burnout?

    A practical look at how cold solder joints inside a solar module junction box ca···

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    Why Bussing (Overlap Soldering) Causes Cell Cracks During Lamination in PV Modules
    20 Jul

    Why Bussing (Overlap Soldering) Causes Cell Cracks During Lamination in PV Modules

    A hands-on breakdown of the three most common bussing-related causes of center h···

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    Perovskite/Silicon Tandem Cells: 8nm ITO Interconnect Layer Achieves 31.80% Efficiency
    20 Jul

    Perovskite/Silicon Tandem Cells: 8nm ITO Interconnect Layer Achieves 31.80% Efficiency

    An ultrathin 8 nm ITO interconnect layer combined with NiOx and Poly-SAM functio···

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    TOPCon Cells Under Damp Heat: Why the Rear Side Fails First
    17 Jul

    TOPCon Cells Under Damp Heat: Why the Rear Side Fails First

    A close look at why the rear passivation stack of TOPCon solar cells degrades fa···

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    N-Type Silicon's Invisible Efficiency Killer: When Oxygen Crosses 12 ppma, Cells Lose 0.4%+
    17 Jul

    N-Type Silicon's Invisible Efficiency Killer: When Oxygen Crosses 12 ppma, Cells Lose 0.4%+

    Concentric ring defects (CRD) are small oxygen precipitates hiding inside N-type···

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    Is BC Just One Technology? Unpacking the XBC Solar Cell Family
    17 Jul

    Is BC Just One Technology? Unpacking the XBC Solar Cell Family

    BC (Back Contact) is a platform technology, not a single cell product. Learn how···

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    Pinholes in TOPCon Cells: The Surprising Path to 26.55% Efficiency
    17 Jul

    Pinholes in TOPCon Cells: The Surprising Path to 26.55% Efficiency

    New research reveals two types of SiOx pinholes in TOPCon cells. Passivating pin···

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    Solar PV Module Manufacturing: The System Behind Repeatable Modules
    16 Jul

    Solar PV Module Manufacturing: The System Behind Repeatable Modules

    Learn how solar PV module manufacturing links product design, material control, ···

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    From Solar Cells to Finished Modules: How a Solar Panel Production Line Works
    16 Jul

    From Solar Cells to Finished Modules: How a Solar Panel Production Line Works

    See how a solar panel production line turns cells into finished modules through ···

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    What Machines Are Used to Make Solar Panels?
    15 Jul

    What Machines Are Used to Make Solar Panels?

    What Machines Are Used to Make Solar Panels?Discover the machines used to make s···

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    SiNx Too Thin and Silver Paste Punches Through the Poly Layer, Too Thick and Contact Resistance Jumps 600x: ISFH Points to a Fix
    15 Jul

    SiNx Too Thin and Silver Paste Punches Through the Poly Layer, Too Thick and Contact Resistance Jumps 600x: ISFH Points to a Fix

    An ISFH study on POLO contacts shows how backside SiNx capping thickness and fir···

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    Why Are Solar Panels Mostly Blue or Black?
    15 Jul

    Why Are Solar Panels Mostly Blue or Black?

    Solar panels look blue or black because of silicon crystal structure, anti-refle···

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    Client testimonials praise our deep understanding of their challenges, which leads to innovative solutions and strong ROI. Long-term collaborations—some over a decade—demonstrate their trust and satisfaction. Their success stories drive us to continually exceed expectations. Know More

    A man with a big soul. Thank you very much for your visit Mr Wu. Thank you very much for the services provided in installing equipment and training my students. The kindest person and professional in his field

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    Thanks to Ooitech for providing highly suitable BC solar cell experimental equipment.

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    Thank you again so much again for the very big big help for improving and fixing the factory and also teaching the workers how to use the machines

    Mark

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    Thanks to Ooitech for providing the fully automated production equipment—your installation and after-sales service have been excellent.

    Amjad

    Our Products

    Our Latest Products

    Automatic Layup & Bussing Integrated Machine SAW-100A | Solar Panel Production Equipment | Ooitech
    2025-09-05 22:36:46

    Automatic Layup & Bussing Integrated Machine SAW-100A | Solar Panel Production Equipment | Ooitech

    Ooitech SAW-100A Automatic Layup & Bussing Integrated Machine delivers high-efficiency cell string layup and terminal busbar welding with high frequency electromagnetic soldering, mechanical and fiber optic positioning, and capacity up to 15S per grou

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    Wire Drawing Machine for Solar Ribbon Production Line
    2026-05-11 16:24:32

    Wire Drawing Machine for Solar Ribbon Production Line

    Professional intermediate wire drawing machine for solar ribbon production line, featuring four-axis horizontal design, copper wire drawing from 3.2mm to 0.6mm with high-speed 1800m/min performance and WF650 plum-blossom spool take-up system.

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    STW-60A Automatic Shingled String Cell Terminal Head Welding Machine | Solar Module Busbar Welding Equipment
    2025-08-17 17:41:21

    STW-60A Automatic Shingled String Cell Terminal Head Welding Machine | Solar Module Busbar Welding Equipment

    STW-60A automatic shingled string cell terminal head welding machine by Ooitech uses infrared heating technology to weld busbars on both positive and negative terminals of solar cell strings. Supports 158.75mm, 166mm, and 210mm cells with a cycle time of

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    OLS-20E Dual-Laser Solar Cell Cutting Machine with Automatic 1/4 Breaking for Shingled Solar Cell Production
    2025-08-17 17:41:21

    OLS-20E Dual-Laser Solar Cell Cutting Machine with Automatic 1/4 Breaking for Shingled Solar Cell Production

    OLS-20E is specially designed for shingled solar cell cutting, featuring dual laser heads, automatic 1/4 breaking, and compatibility with 1/2 breaking for flexible solar cell processing.

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    CHT9951A/CHT9951B Solar Panel Hipot Insulation Resistance Tester | PV Module Safety Testing Equipment
    2025-09-08 14:34:35

    CHT9951A/CHT9951B Solar Panel Hipot Insulation Resistance Tester | PV Module Safety Testing Equipment

    CHT9951A/CHT9951B hipot and insulation resistance tester for solar PV module testing. DC output up to 10kV, insulation resistance up to 99GΩ, arc detection, wet leakage current test. Compliant with IEC61215 and IEC61730 standards. Ideal for solar panel pr

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    ST-TLD3A+ IV Tester – PV Module Flash & Performance Testing
    2025-09-08 14:05:49

    ST-TLD3A+ IV Tester – PV Module Flash & Performance Testing

    ST-TLD3A+ / SMTL-V21.3A+ solar IV tester – A+ spectrum, tests mono, poly, TOPCon, HJT, IBC & thin film. Accurate I-V/P-V curves for full module electrical performance measurement.

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