One common concern from operators and workshop managers is whether handheld laser welding machines produce significant noise during operation. The short answer: yes, there is some sound, but it’s generally much quieter than traditional arc or plasma welding methods.
What Causes the Sound?
The main source of noise isn’t the laser itself—laser beams are silent. Instead, the sound comes from supporting components:
Cooling system: The built-in or external chiller runs fans and pumps, producing a low hum (typically 50–65 dB).
Fume extraction: If using an integrated or external extractor, the fan creates airflow noise, especially at higher suction levels.
Arc ignition (in hybrid models): Some handheld units combine laser and arc processes, where the arc start can create a brief snapping sound.
Spatter impact: Small metal sparks hitting the workpiece or shielding gas nozzle may produce light popping, particularly on dirty or coated surfaces.
Noise Level Compared to Other Welding Methods
Compared to MIG or TIG welding, handheld laser welding machines generate less operational noise. Traditional welding often exceeds 75–85 dB due to arc crackle and wire feeder motors. In contrast, most laser handheld systems operate between 60–70 dB under normal conditions—similar to a standard office conversation.
Workplace Considerations
While hearing protection may not be required solely for noise in many setups, workshops still need proper ventilation and fume control, which often involve additional equipment that contributes to ambient sound.
Haiwei Laser offers handheld laser welding machines with optimized cooling and quiet operation, designed for industrial environments where operator comfort and workspace noise matter.