PV Busbar Ribbon Integrated Drawing Rolling Tinning

Quick answer: The PV busbar ribbon integrated drawing, rolling and tinning production line is a turnkey system for producing solar ribbon. It runs at line speeds up to about 150 m/min from an input diameter of roughly 3.5 mm, on a 35 V drive with spool weights around 180 kg, and is specified for ribbon production serving module lines from 5 MW to 1 GW. Integrating drawing, rolling and tinning in one line removes the coil handling and re-spooling between separate machines, which is where surface oxidation and edge damage usually appear. Tinning has to follow rolling closely: a rolled flat ribbon that sits before plating will oxidise, and an oxidised surface is what makes a solder joint look acceptable and fail in thermal cycling. One pass keeps that window short.

PV Module Manufacturing · by Jerry, Ooitech

Product Introduction

The PV Busbar Ribbon Integrated Drawing Rolling Tinning Production Line is a complete turnkey solution designed for producing high quality tin-coated copper ribbons used in solar panel manufacturing. The line integrates six core processes - wire drawing, calender rolling, flat drawing, annealing, tin coating and take-up - into one continuous production system, delivering consistent ribbon quality required by modern photovoltaic module assembly.

Each mechanical unit is built as an independent module that can be relocated or recombined according to plant layout requirements. The main motor runs through a variable frequency drive with stepless speed adjustment from 0 to 150 m/min, with current speed shown on the touch screen. The drawing pay-off, calender, annealing and take-up motors each carry their own dedicated VFD. Tension bar movement drives a precision resistor, and the resistance signal is calculated by the PLC in real time, which commands each VFD to instantly adjust motor speed. This keeps the tension bar stable, maintains optimum line tension, and ensures uniform ribbon diameter throughout the run.

The line targets manufacturers of solar cell interconnect ribbons and bus ribbons supplying module production plants running PERC, TOPCon, HJT, IBC, MBB, shingled and similar cell technologies.

Technical Specifications

Main Performance Parameters

Machine Composition

Technical Advantages

Precision Drive and Tension Control

• Stepless speed regulation 0 to 150 m/min controlled by VFD with HMI display

• Independent VFD on every functional section, each linked to a precision resistor tension sensor

• PLC real-time computation instantly corrects motor speed to keep tension bar stable

• Closed-loop control delivers uniform ribbon diameter and minimal yield loss

Robust Drawing and Rolling Section

• 7-die four-axis horizontal gear drawing with tungsten carbide spray welded capstans

• Three-layer integrated capstan design, two interchangeable plus one final dedicated capstan

• 180 mm tungsten carbide rolling rolls, air cooled with internal water circulation

• Online laser detection with closed-loop control automatically adjusts rolling gap during operation

• Dovetail slide alignment at inlet and outlet for precise positioning

Stable Annealing Performance

• Short circuit full-wave DC annealing, 45 KW 0-35V power supply auto-tracking line speed

• Aluminum annealing tube with anodized door opening structure, nitrogen protected

• Circulating water plus air cooler temperature control

• Hard wearing electrical bakelite guide wheels for long service life

High Quality Tin Coating

• 12 KW tubular electric heater with ceramic fiber insulation for uniform heating

• Titanium plate welded tin pot, 180 kg capacity, stress relief annealed

• Titanium press rolls resist tin adhesion and wear

• Precision air knife with stable balanced air supply for uniform tin thickness

• Dual-groove PP flux tank with felt drip application and shortage alarm

• Automatic tin feeding system with low level alarm

• Centralized fume extraction over flux and tinning zones

Reliable Take-up System

• Servo driven up-lead storage with 2.5 m vertical wire storage space

• 4 m storage rack provides up to 35 seconds for non-stop bobbin change

• 750 W servo motor traverse with ball screw and gear belt for stable wire laying

• Twin spindle take-up with segmented main shaft for both large and small bobbins

• Two sets of traverse and take-up enable non-stop reel change

Premium Component Selection

• Bearings from NSK, JNS, HRB brands

• Habasit flat belts and Nitta timing belts

• Wannan series motors with sinusoidal servo and PLC

• Sinusoidal brand HMI touch screen

Product Applications

The production line is dedicated to manufacturing tin-coated copper interconnect ribbons and busbar ribbons used in crystalline silicon solar module assembly. Typical downstream applications include:

• Interconnect ribbon for 5BB, 9BB, 12BB and MBB solar cell stringing

• Busbar ribbon for solar module bussing operations

• Ribbon supply for PERC, TOPCon, HJT, IBC, ABC, HPBC cell modules

• Ribbon for shingled module production

• Custom flat copper conductor for power electronics and battery pack tabs

• Flexible solar module interconnect applications

The equipment suits ribbon manufacturers serving 5 MW to 1 GW solar panel production lines, as well as integrated PV module factories looking to bring ribbon production in-house for cost control and supply security.

Contact and Purchase

For detailed quotations, layout drawings, factory acceptance test arrangements and complete technical proposals on the PV Busbar Ribbon Integrated Drawing Rolling Tinning Production Line, please reach out through the website inquiry channel. Customized configurations are available to match specific ribbon width, thickness and output capacity requirements.