TABBER & STRINGER: THE KEY TO PRECISE, FAST AND RELIABLE SOLAR ASSEMBLY

In solar-module manufacturing, precision in solar-cell interconnection defines final performance. Mondragon Assembly’s PV Tabber & Stringer machines are essential for achieving automated solar assembly lines that combine speed, process control, and maximum reliability.

How a PV Tabber & Stringer Works in Solar Module Manufacturing

The Tabber & Stringer joins solar cells by soldering or conductive adhesive, creating the electrical “strings” that form the heart of a photovoltaic module.
This automated process ensures uniform and precise interconnection — essential for optimizing energy efficiency and durability.

Thanks to its adaptable and modular design, Mondragon Assembly’s machines adjust to different materials and cell technologies (such as TopCon, SMBB, or xBC) with minimal changeover time, ensuring flexible and profitable production.

Main Technical Features of a PV Tabber & Stringer

Designed to balance productivity and quality control, Mondragon Assembly’s PV Tabber & Stringers integrate smart automation and process traceability solutions:

• Up to 6,000 cycles per hour.
• Cell breakage rate < 0.2%, even at high speed.
• Compatibility with up to 24 wires / bus bars (BB).
• Infrared soldering with optional ECA conductive adhesive for low-temperature processes.
• Precise temperature control across multiple stages.
• Anti-camber systems to ensure ribbon straightness.
• Easy MES integration for complete traceability.

Complying with European Standards in Photovoltaic Automation

With over 20 years of experience in solar automation, Mondragon Assembly designs and manufactures its PV Tabber & Stringer machines in line with the highest European quality and safety standards.

This approach ensures process reliability, repeatable results, and compliance with international regulations for solar-module production.

Why Choose Mondragon Assembly’s Tabber & Stringer Machines?

The reliability of a solar assembly line depends on both performance and process stability.
Mondragon Assembly’s Tabber & Stringer machines deliver both, integrating advanced inspection and control technologies to guarantee consistent results in every production cycle.

• Key differentiators: Integration of inspection technologies such as photoluminescence to detect invisible defects before they affect module performance.
• Advanced traceability control that records every process parameter to ensure repeatable, verifiable production.
• Proprietary patents, including the continuous string system, which improves overall efficiency and reduces defects during assembly.
• Unique process-definition and control system ensuring every cell follows a uniform pattern, preventing deviations or quality loss at batch start-ups or recipe changes.

Through this approach, Mondragon Assembly meets European quality and reliability standards and stands as a benchmark in photovoltaic automation for manufacturers seeking stable, scalable lines with dedicated technical support.

Three Solutions for Different Production Levels and Solar Technologies

HMTS 3000 – Flexibility for Versatile Solar Assembly Lines

Designed for mainstream processes such as TopCon and SMBB, the MTS 3000 offers adaptability to various cell formats and the option to upgrade to emerging technologies like xBC.
Ideal for manufacturers seeking a robust, configurable machine that adapts to different production requirements with low changeover costs.

MTS 6000 – High Performance for Large-Scale Photovoltaic Production

Designed for high-volume lines, the MTS 6000 is compatible with back-contact cells, SMBB, and low-temperature adhesive bonding processes.

Its design minimizes downtime and ensures stable operation in continuous production environments, providing maximum productivity and traceability.

MTS-ECA – Innovation in Conductive Adhesive (ECA) Interconnection

The most advanced solution in the range enables cell interconnection via electrically conductive adhesive or soldering, featuring precise curing control and servo-assisted transport.

Targeted at manufacturers embracing next-generation interconnection technologies that demand greater thermal flexibility and reduced mechanical stress on cells.

Smart Automation for a More Efficient and Sustainable Solar Manufacturing

At Mondragon Assembly, Smart Automation goes beyond basic process automation.
It means integrating process intelligence, data traceability, and predictive control so that each stage of the solar line — from cell soldering to final module assembly — operates in a coordinated, efficient, and adaptive way.

This approach enables manufacturers to:

• Monitor and optimize critical parameters in real time, reducing errors and variability.
• Ensure complete traceability of each cell and string produced.
• Anticipate deviations or downtime through diagnostics and predictive maintenance systems.
• Reduce OPEX without compromising final product quality.

The result is a more stable, profitable, and sustainable photovoltaic manufacturing process, ready to adapt to new solar cell technologies.

How Can Mondragon Assembly Help You?

At Mondragon Assembly, we support solar manufacturers in the design and implementation of efficient, automated, and scalable assembly lines, adapted to each cell technology and production volume.

Our PV Tabber & Stringer machine is a key element within this ecosystem: it combines precision, reliability, and flexibility to ensure perfect cell interconnection and long-term production stability.

With over two decades of experience in the photovoltaic industry, we provide specialized technical support, complete traceability, and customized solutions that maximize profitability while reducing operational costs.

We act as a trusted European technology partner, bringing innovation, reliability, and local support to every project.

Mondragon Assembly — Your European Partner for Efficient Solar Manufacturing.