01
Develop
Development & optimization of laser processes – feasibility studies, PoC, parameter optimization, design for manufacturing, prototype and sample production.
Faster technology development · Reduced development riskRMA · Laser Experts
We deliver complete production processes.
Laser welding technology, engineered into reliable, scalable battery manufacturing – validated in the Laser Application Center, proven on the production line.
Let's meet – upcoming events
The Battery Show North America
Oct 12–15, 2026 · Huntington Place, Detroit, MI · Booth 5405
See all events →§ 01 – What we deliver
One accountable partner – from concept to serial production.
Rather than supplying standalone machines, we design and deliver complete production processes. Every project moves through the same four stages.
02
Validate
Proving process quality and production readiness – metallography, material analysis, pull-off and tensile testing, repeatability assessment, validation reports.
Verified performance · Objective quality confirmation
03
Industrialize
Transforming validated processes into reliable production systems – standard Battery Welders, custom machines, automation, robotics and line integration.
Faster ramp-up · Lower total cost of ownership
04
Support
One accountable partner for the entire system – spare parts stock, service contracts, hotline and remote diagnostics, continuous process optimization.
Maximum uptime · One partner for the complete solutionR / 01
Shorter time-to-market
R / 02
Reduced technology and investment risk
R / 03
Stable, repeatable manufacturing processes
R / 04
Higher product quality at lower manufacturing cost
R / 05
Single technology partner for the entire lifecycle
RMA · A BUSINESS UNIT OF AIC S.A.
RMA is part of the AIC group, which for 25 years has been engineering laser-based production systems – today spanning 3 manufacturing plants and 8 commercial locations across Europe, North America and Asia-Pacific, with 600+ employees worldwide.
We are an engineering and technology company focused on laser technology solutions for battery manufacturing. Rather than supplying standalone machines, we design and deliver complete production processes – validated in our Laser Application Center and engineered for consistency, traceability and long-term reliability at scale.
Learn more about RMA →AIC Group
2001Founded
3Manufacturing plants
8Commercial locations
600+Employees
EU·NA·APACCoverage
RMA
§ 02 – Platforms
Precision joining & laser process platforms for battery production.
Battery Welder Max
Full automation, highest throughput.- LoadingFully automated
- High-volume production
Battery Welder Flex
High customization for mixed production.- LoadingConfigurable
- Mixed-model lines
Battery Welder Turntable
Flexibility and efficiency, turntable-fed.- LoadingSemi-automatic
- High-volume, semi-automatic
Battery Welder Spot
Entry point – up to 4 press fingers, manual or auto-loading.- LoadingManual / auto-loading
- Entry point, prove the process
All platforms share the same process-control architecture
§ 03 – Quality gates
Quality is verified before, during and after every weld.
The machine refuses to weld a bad joint.
Vision recognition locates each joint, the clamping unit eliminates the gap, connection height is measured and focal position adjusted. If preconditions are not met, the weld does not start.
Every weld monitored in real time.
Controlled energy input and online process monitoring track the weld as it happens – deviations are flagged at the joint, not discovered in the field.
Documented proof, not assumptions.
Weld data recorded per joint and per pack, transferable to your database. Processes are validated at the Laser Application Center with metallographic examinations, tensile testing and macroscopic analysis.
§ 04 – Materials
A wide range of materials, including challenging dissimilar-metal joints.
SteelStainless steelCopper (nickel-plated)Copper alloysNickelAluminiumLayered materials
Cell types
- Cylindrical – single-sided
- Cylindrical – double-sided
- Prismatic
- Pouch
- Blade
Joint types in the module
- Connectors
- Busbars
- Enclosures
- Measurement tabs
- Fuses
Production & quality
Every Battery Welder is built and validated at RMA's own facility in Gdynia. Machines are engineered for stable, repeatable welding performance, with every process validated before it leaves the factory: efficient validation and revalidation, full traceability across production, and reliability built for continuous manufacturing.
Up to 80%
Heat-affected zone (HAZ) reduction1
2–6 m/min
Continuous welding speed2
- Compared to conventional resistance spot welding – confirmed through metallographic testing at RMA's Laser Application Center.
- Optimal process window for continuous fiber laser seam welding (1–3 kW) on EV battery interconnects and casing joints, for spatter-free penetration.
§ 05 – Industries served
Wherever joint quality and traceability decide whether the product ships.
§ 06 – Laser Application Center
The process starts in the Laser Application Center – not with the machine.
We develop and validate optimal welding parameters against your actual stack-up – before any tooling is committed. Materials laboratory and laser technology center in one place.
- DEV Feasibility studies, Proof of Concept, welding parameter optimization
- LAB Metallographic analysis – penetration, fusion and weld area measurement
- TEST Pull-off and tensile strength testing, process repeatability assessment
- DOC Validation reports and full test documentation
Next step
Focus on your product. We'll engineer the process.
Engineered for process stability. Built for production reality.