Single Pendulum Vs Double Pendulum Fiber Laser Welding Machines

Working Principle And Structural Difference

Single pendulum and double pendulum laser welding machines differ mainly in beam oscillation control. A single pendulum welder uses one-axis swing, with the laser spot moving linearly. It features a simple structure, stable beam output, and easy operation. A double pendulum system adopts dual-axis independent oscillation, allowing the laser beam to move freely in two directions and form various patterns such as circles and figures of eight. This dual-motor design greatly improves motion flexibility and welding adaptability.

Performance And Welding Effect

The single pendulum model provides concentrated energy and strong penetration, suitable for straight seams and thin sheets, with smooth weld formation and lower cost. The double pendulum structure distributes heat more evenly, effectively reducing pores and cracks. It supports wider weld width, better gap bridging ability, and higher-quality fish-scale welds. Double pendulum welding performs better on reflective materials like aluminum and stainless steel, ensuring stable and attractive results.

Application And Selection Guide

Single pendulum welders are ideal for simple, cost-effective jobs such as sheet metal, cabinets, and small parts. They are easy to maintain and friendly for beginners. Double pendulum machines serve high-demand industries including auto parts, pipelines, and complex structural welding. They fit large workpieces, irregular surfaces, and high-standard production. Users should choose based on material thickness, seam requirements, and budget: single pendulum for economy and simplicity, double pendulum for efficiency, precision, and versatility.

If you want to know more about our machines or need any help , please send email to sales@xc-laser.com

XC-Laser . Ms. Helen