Swing Arm Laser Welding Equipment for Battery Cell & Pack Assembly, Precise Laser Welding for Energy Storage Packs

Conventional battery spot welding faces obvious technical bottlenecks when working with thick copper busbars, multi-layer composite strips, and high-density battery modules. Excessive heat output, unstable welding force, and easy oxidation often lead to poor conductivity, a high defect rate, and shortened battery service life. This swing arm fiber laser welding machine resolves these issues with ultra-fine laser beam energy, minimal thermal influence, non-contact welding, and stable molding effect.

The machine is equipped with a high-precision multi-joint swing arm supporting free rotation, lifting, and horizontal movement. It covers a super-large working area and easily reaches corner positions, densely arranged cell gaps, and high-position module welding points that ordinary fixed equipment cannot access. The mechanical arm runs smoothly with high rigidity and no shaking during operation, ensuring ultra-high repeat positioning accuracy for each laser welding point and effectively avoiding welding deviation and missed spots caused by position limitations.

Adopting an industrial-grade, high-stability fiber laser generator, the light beam is fine, uniform, and concentrated. Laser energy output remains stable without attenuation after long-hour working. It achieves fast local melting and precise metallurgical fusion of copper, nickel, and composite metal materials. The welding seam is narrow, smooth, and flat with no bubbles, no cracks, and no spatter. Welding strength far exceeds traditional spot welding, and internal resistance is more stable and lower.

Laser welding features instantaneous energy release and an ultra-small heat-affected zone. It acts only on the welding metal part without heat transfer to battery cells, insulating paper, or surrounding accessories. This effectively prevents battery core overheating, diaphragm damage, and thermal hidden dangers, greatly improving the safety consistency and cycle life of finished battery packs.

Equipped with an industrial-grade color touch screen, the equipment enables full digital parameter adjustment. Users can precisely set laser power, welding speed, pulse width, frequency, and molding parameters. Multiple groups of welding process parameters can be stored and recalled with one click, adapting to different material thicknesses and metal types. The system includes real-time working status monitoring and self-diagnosis functions, making production operation and daily maintenance more efficient and convenient.

The whole machine adopts integrated internal wiring and a hidden cable layout design. All optical fibers and circuit lines are fixed neatly inside the mechanical arm, avoiding wire pulling, friction damage, and aging failure caused by frequent movement. The overall structure is firm, wear-resistant, and fatigue-resistant, fully meeting long-term high-frequency industrial production requirements.

The equipment is equipped with a laser protective structure, emergency stop button, over-temperature protection, over-current protection, and overload automatic power-off function. It effectively avoids equipment failure, laser radiation risk, and workpiece burning problems during operation, ensuring safe and stable production.

This swing arm fiber laser welding machine is widely used across new energy manufacturing industries:

• Electric vehicle and electric motorcycle power battery production
• Portable outdoor energy storage power station assembly
• Household and commercial large energy storage battery module manufacturing
• Communication equipment, medical equipment, and industrial backup battery processing
• Battery factory precision welding process upgrading and laboratory prototype development

All equipment is strictly tested for laser energy stability, swing arm precision, and real battery welding effect before delivery. We provide complete English operation manuals, professional parameter debugging guidance, and long-term remote technical support. Custom fixtures and personalized process solutions are available to meet different customer production standards.