Electronic Fume Extraction Solutions for PCB Industry

Why the PCB Industry Needs Fume Control at Every Stage

A printed circuit board passes through many steps between bare board and finished assembly, and several of them release fumes. Soldering and rework give off flux smoke, conformal coating and adhesive dispensing release solvent vapours, and laser marking and drilling of boards produce fine particles from solder mask, laminate and copper.

Multilayer, flexible and HDI boards make the problem more sensitive. Fine-pitch joints, thin coatings and tightly packed parts leave little room for residue, and operators at rework and inspection benches work only centimetres from the source. Each stage therefore needs extraction designed for the fume it creates, not one general exhaust for the whole floor.

Electronic Fume Extraction Along the PCB Line

Electronic fume extraction captures fumes at the tip, nozzle or hood where they form and passes the air through a filter train before returning it to the room. In the PCB industry, the extraction point and the filter set change from stage to stage.

• Hand soldering and rework: flux smoke captured by an arm or tip nozzle at the bench, filtered through HEPA and carbon.
• Coating and dispensing: solvent and adhesive vapours, where the activated carbon stage does most of the work.
• Laser marking and drilling: a heavier particle load from laminate, solder mask and copper, which needs a laser fume extractor with a larger pre-filter and higher airflow.

Why Board Reliability Depends on Clean Air

Fumes that are not captured do not disappear; they settle. On a PCB line they settle on stencils, nozzles, optics and on the boards themselves. A film of flux residue or laser dust on a board before coating can weaken coating adhesion, and dust on the optics of a laser marker or an inspection camera reduces mark and image quality. Capturing fumes at the source keeps both the operator’s breathing zone and the product clean, and supports compliance with occupational and environmental requirements.

Built for PCB Assembly and Board Processing

The extractors cover the range of workstations found in PCB plants, from single rework benches to laser cells.

Rework and repair benches

The V 200 extracts for up to two operators at 90 m³/hr and below 54 dBA, in a 10 kg cabinet small enough to sit under the bench, with an LED that signals filter replacement.

Multi-station assembly lines

The V 600 serves up to six workstations from one cabinet at 350 m³/hr and below 60 dBA, with iQ diagnostics and filter-replacement alerts.

PCB drilling and laser processing

The AD Oracle iQ delivers 380 m³/hr through a DeepPleat DUO pre-filter, HEPA filter and carbon gas filter, with iQ monitoring of pressure, airflow and filter condition.

Low-heat marking of boards

UV laser marking at 355 nm marks serial numbers, barcodes and logos on multilayer PCBs and passive components with low heat, and its fumes are captured by the laser extractor beside it.

Building a Complete PCB Fume Extraction Setup

Rework, repair and inspection benches are covered by the V 200, which serves two operators from one quiet unit. Assembly lines with several hand-soldering and touch-up positions are connected to the V 600, for up to six workstations. PCB laser marking, coding and drilling cells, such as the LASIT UV Laser Marking System, are paired with the AD Oracle iQ laser fume extractor, and genuine BOFA replacement filters for every unit are supplied from India.

Who Uses It

• PCB assembly and electronics manufacturing services (EMS) companies
• Bare board, flexible and HDI PCB fabricators
• Electronics OEMs with in-house SMT and rework lines
• Repair, rework and failure analysis laboratories
• Electronics R&D centres, universities and training institutes

Supply and Support in India

United Spectrum Instruments (USI), Chennai, is the authorised distributor of Donaldson BOFA in India and the distributor of LASIT laser marking systems, and supplies electronic fume extraction units, laser fume extractors and genuine replacement filters to the PCB industry.

USI helps match each stage of your PCB line to the right extractor and filter set, and provides help with sizing, set-up and filter changes by phone, WhatsApp and video call.

Request a Configuration

Download the brochure from this page, use the Enquire Now button, write to sales@unitedspectrum.in, or call +91 93631 83748 / +91 97899 04948. Please mention:

• The PCB processes to be covered: rework, hand soldering, coating, laser marking or drilling
• The number of workstations or laser cells, and how they are laid out
• The flux, coatings and board materials in use, and the shift pattern
• Any existing BOFA units, and whether replacement filters are also needed