Environmental equipment for battery and high-tech manufacturing

Clean air for battery and high-tech plants

SAMJU designs, builds and services dust collectors, fume collectors, activated carbon towers and scrubbers for battery and high-tech plants across North America.

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2001Engineering since

230+Air pollution control projects

6U.S. battery plants supplied

9Countries served

Proven in battery and high-tech plants, supported on site

SAMJU was founded in 2001 and registered as an air and water pollution prevention contractor in 2002. Since then we have designed and installed hundreds of systems for battery, chemical, automotive and food manufacturers.

We bring that experience to North American plants. We work on site with your engineering and EHS teams, from design through commissioning, filter and carbon change-outs, and long-term maintenance.

Our team works in both English and Korean, with direct access to engineering at our headquarters.

2001SAMJU founded
2008ISO 9001 and ISO 14001 certified
2018Registered vendor to LG Energy Solution overseas plants
2022ISO 45001 certified
2023First U.S. battery plant projects
2025USD 7M Export Tower award

Equipment we build

Every system is sized to the process: airflow, dust and gas properties, temperature and available space. We handle fabrication, installation, ductwork and controls.

Bag filter and cartridge collectors

Pulse-jet cleaning keeps pressure drop low and capture efficiency high for fine particulate.

Electrode slitting, mixing, notching

Fume and scrap collectors

Central and local collectors for laser welding fume and electrode scrap, with rotary valves and compactors.

Notching and stacking, packaging, cell assembly

Activated carbon towers

Adsorption towers that remove VOCs and odor, sized for residence time with easy carbon replacement.

Electrolyte areas, solvent and odor sources

Wet scrubbers

Packed tower, venturi and jet scrubbers in FRP, carbon steel or stainless for acid gas and soluble dust.

Chemical processes, plating, incinerators

Cyclones

Low-maintenance pre-separators that remove coarse dust ahead of a final filter.

Boilers, grinding, powder recovery

Oil mist collectors

Multi-stage filter or electrostatic units that keep machining areas clear of oil mist.

Machining, extrusion, fastener production

Applications

From raw material handling to cell testing, we match the right collection and treatment system to each step of battery and high-tech production.

Raw material and mixing

Dust collectors for powder handling and activated carbon towers for NMP vapor.

Coating and drying

Fume collectors and exhaust for electrode coaters and dryers.

Electrode slitting

Slitter dust collectors that capture fine electrode dust at the source.

Notching and drying

Scrap and fume collectors for cathode and anode lines, with hydrated lime feed for fire safety.

Lamination and stacking

Dust collectors that keep cell assembly areas clean.

Cell packaging

Laser welding fume collectors and carbon towers for electrolyte vapors (EC, EMC, VC).

Degassing

Exhaust fans and activated carbon towers for degassing lines.

QA and safety test labs

Carbon towers with KOH-impregnated carbon for HF and electrolyte vapors.

Carbon and filter change-out

Scheduled activated carbon and filter replacement with test records.

Plants we have supplied

Battery plant references across North America, Europe and Asia. Other customers include LG Energy Solution, LG Chem, KCC, LX Hausys and HD Hyundai Infracore.