Amada LW500A - Section V. Spot Size (µm)

APPENDIX A. TECHNICAL SPECIFICATIONS
LW500A/LW600A PULSED Nd:YAG LASER
A-8 990-539
Section V. Spot Size (µm)
The table below shows the theoretical spot sizes (in µm) of the imaged IR laser beam impinging upon the
welding surface. The actual weld spot diameter on the surface will always be larger than shown in the
table. At high power levels, the spot size will be significantly larger. The weld spot diameter is a function
of the material type, laser settings, penetration depth, and desired weld strength. Not all lens combinations
are available as standard products. Please consult Amada Miyachi America for availability and pricing.
We encourage you to use our laser applications laboratory to help you determine the best process and
equipment for your specific application.
FOCUS HEAD LENS COMBINATION
FIBER DIAMETER (m)
Collimating Focal
Length
Output Focal
Length
300m 400m 600m 800m 1000m
70 50 214 286 429 571 714
70 70 300 400 600 800 1000
70 100 429 571 857 1143 1429
70 120 514 686 1029 1371 1714
100 50 150 200 300 400 500
100 70 210 280 420 560 700
100 100 300 400 600 800 1000
100 120 360 480 720 960 1200
120 50 125 167 250 333 417
120 70 175 233 350 467 583
120 100 250 333 500 667 833
120 120 300 400 600 800 1000
200 50 75 100 150 200 250
200 70 105 140 210 280 350
200 100 150 200 300 400 500
200 120 180 240 360 480 600