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BM114S SERIES 6KW Laser Cutting Head User Manual
5.2.4
Removal and Installation of Focus Lenses
Removal and installation of focus lenses refer to the following steps:
Remove the laser head and move to a clean place. Clean all dust on the laser head
surface;
Place the laser head horizontally. As shown in Figure 6.7, remove the locking screws from
bottom to top;
As shown in figure 6.8, use a lens-taking tool to remove the focus lens holder;
Remove the spring pressure washer and lens with a lens taking tool;
Replace or clean the focus lens.
As the direction (arrow) shown in figure 6.9, put the focusing lens and the spring
pressure washer in the lens holder carefully and tighten the pressure washer properly;
Spin the focus lens holder bake to focus lens barrel and tighten it;
As the sequence shown in figure 6.7, reassemble and lock the screw.
Check if the focus position is at the center of nozzle. If not, you need to refer to the 3.1
step to reset the operation.
Please note that biconvex lens gets 1 big curve face and
1 small curve face. The small curve face shall be next to
concave face of meniscus lens
