Fiber laser cutting is normally used for cutting metal materials with medium and high power, general light path transmission order like: laser beam go through the collimating lens, where the beam is collimated and become parallel light beam, and then focus lens set parallel light focusing on the job position, at the same time protective lenses, behind the focusing lenses, can prevent the focusing lenses from splash damage. In addition, in the L-shaped cutting head, the collimated light beam will be deflected 90 degrees by the 45-degree reflection mirror, and then goes through the focusing lenses, resulting in the focus cutting.
Category：Collimating Lenses
Keywords：Fiber Laser Cutting Focus Lens
l Capacitive Signal Insulation:
Electrically isolates the cutting nozzle from the rest of the laser head. This enables the capacitive sensor to accurately measure the micro-distance between the nozzle tip and the metal workpiece for precise height tracking.
l Thermal Protection:
Shielding the internal electronics and optical components of the cutting head from the extreme heat reflected off the laser cutting zone.
l Mechanical Alignment & Support:
Provides a rigid, high-precision mount to keep the laser nozzle perfectly aligned with the laser beam path.
l Break-Away Protection (Crash Defense):
Acts as a intentional structural "weak point." If the cutting head collides with a tipped-up part on the cutting bed, the ceramic ring breaks cleanly to absorb the impact—preventing catastrophic and costly damage to the internal optics and sensor mechanism.
1.High Thermal Stability & Resistance:
Advanced technical ceramics (like alumina or zirconia) can withstand extreme temperatures exceeding 1,000°C without warping, melting, or losing structural integrity under high laser power.
2.Exceptional Electrical Insulation:
Provides absolute isolation for the capacitive height-sensing signal, preventing interference or electrical noise so the laser head maintains a stable, sub-millimeter standoff distance.
3.Cost-Effective "Fuse" Mechanism:
Designed to snap during a physical crash into a tipped-up workpiece, sacrificing a low-cost consumable component to protect fragile, expensive internal optics and capacitive sensors ($2,000+).
4.High Dimensional Accuracy:
Precision-machined dimensions ensure the nozzle stays centered relative to the focused laser beam, maintaining clean cut quality and consistent gas assist flow.
5.Corrosion & Wear Resistance:
Impervious to molten metal spatter, slag, and aggressive process gases (like high-pressure oxygen or nitrogen), ensuring a longer operational lifespan than plastic or basic metal alternatives.
We always put our commitment to customers in the first place and enforce industry product quality standards.
Under normal circumstances, all products covered in this booklet have a shelf life of one year from the day they are delivered to the customer, and the warranty time is calculated as if the product were not opened in its packaging. After opening the package and using it, it is not covered by the warranty period, except for the laser cutting head.
We ensure the parameters of the products, if the product quality is not qualified, we will give free replacement.
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