Precitec Original Collimating & Focusing Lenses

Precitec Original Collimating & Focusing LensesPrecitec Original Collimating & Focusing Lenses (D30 D37) Original Precitec optical lenses for fiber laser cutting heads. Select your Diameter (D30 or D37), Focal Length (F100F300) and Spec (Collimating Focusing Aspheric + power rating). Built for 1 m Yb fiber lasers and high power industrial cutting. Compatibility: Precitec laser heads (verify D30 D37 and focal length before ordering). Types: Collimating (beam collimation) & Focusing (spot

Precitec Original Collimating & Focusing Lenses (D30/D37)

Original Precitec optical lenses for fiber-laser cutting heads. Select your Diameter (D30 or D37), Focal Length (F100–F300) and Spec (Collimating / Focusing / Aspheric + power rating). Built for 1 µm Yb-fiber lasers and high-power industrial cutting.

• Compatibility: Precitec laser heads (verify D30/D37 and focal length before ordering).
• Types: Collimating (beam collimation) & Focusing (spot formation); aspheric options for high-power heads.
• Power ratings: 4–30 kW (see variant list).
• Optics: Laser-grade fused-silica substrates with high-damage-threshold AR coating for 1030–1090 nm.
• Weight: 0.2 kg per item. Tax-exempt on this store.
• Packing: Each lens is individually protected and sealed for safe transport.

How to choose the right lens

1. Confirm diameter on your head label or existing lens: D30 or D37 (must match mechanically).
2. Identify function:
   • Collimating lens (near the fiber input) converts the diverging beam to a parallel beam.
   • Focusing lens (above the nozzle) concentrates the parallel beam into the cutting spot.
3. Pick focal length by process needs (shorter F → smaller spot & shallower depth; longer F → larger process window & more standoff).
4. Match power level: for ≥15 kW, choose aspheric options where noted to reduce aberrations and thermal load.

Variant matrix (quick reference)

Technical information

Installation & maintenance

1. Environment: Work in a clean, enclosed, dust-free area. Wear powder-free nitrile gloves and a mask.
2. Check parts: Verify diameter and F value; inspect O-rings, spacers, and seats for residues.
3. Orientation: Keep coated surfaces clean; follow manufacturer orientation marks if present.
4. Mounting: Place gently into the holder; tighten the retaining ring to the manufacturer’s torque (do not overtighten).
5. Alignment: After collimator replacement, check beam collimation and nozzle centering.

Cleaning guideline

• Blow off loose particles with filtered, oil-free air from center to edge.
• Single drag-wipe with lint-free lens tissue lightly wetted with 99.9% IPA; avoid circular scrubbing.
• Do not touch the surface; never reuse tissues; air-dry in a clean environment.

FAQ

Q1. Do I need an aspheric lens?
For heads ≥15 kW, an aspheric collimating lens (and for 30 kW also the F300 focusing lens) helps maintain beam quality and stability.

Q2. Can I switch between D30 and D37?
No. The diameter must match the head design. Always follow the label or the size of your existing optics.

Q3. Can I combine F100 collimation with F150 focusing?
Yes—collimating and focusing focal lengths are chosen together to achieve the target spot size and standoff; use the same combination as your OEM setup unless process changes are intended.

Q4. What else should be checked or replaced?
Protective window, nozzle, and ceramic ring. A contaminated window can quickly damage a new focusing lens.

Recommended accessories

• Protective windows (QBH sizes matching your head)
• Nozzles (single/double layer, conical/straight)
• Ceramic rings & sensor cables