Laser assemblies
CO₂ scan lenses, 3-axis heads, expanders.
ZnSe optics in black barrels, specified for 9.3 and 10.6 µm marking, cutting and welding. Tell us galvo aperture and field — we will return working distance.
Three-axis marking heads
Dynamic focus for large fields. Working distances are calculated from the maximum galvo scan angle for each requested field size.
| Spec | Clear aperture | Scan field (mm) | Typical spot |
|---|---|---|---|
| C30 | 30 | 200×200 – 800×800 | 150 µm @ 200×200 |
| C50 | 50 | 300×300 – 800×800 | 150 µm @ 300×300 |
| C70 | 70 | 300×300 – 800×800 | 110 µm @ 300×300 |
F-θ scan lenses
Standard thread M85×1. Example SL3-9.3-60-90-14: 9.3 µm, under 500 W, EFL 90 mm, working distance 87.9 mm, CA 10 / 14 mm.
| EFL (mm) | Lens Ø | Design field | Actual field | CA | Spot (mm) | Entrance Ø |
|---|---|---|---|---|---|---|
| 73 | 48 | 50×50 | 60×60 | 43 | 0.15 | <16 |
| 100 | 36 / 48 | 70×70 | 80×80 | 32 / 43 | 0.20 | <8 / <16 |
| 160 | 36 / 48 | 110×110 | 130×130 | 32 / 43 | 0.20 | <8 / <16 |
| 230 | 48 | 140×140 | 170×170 | 43 | 0.35 | <16 |
| 254 | 48 | 175×175 | 190×190 | 43 | 0.40 | <16 |
| 300 | 48 | 210×210 | 230×230 | 43 | 0.45 | <16 |
| 330 | 48 | 250×250 | 265×265 | 43 | 0.50 | <16 |
| 450 | 48 / 56 / 60 | 300×300 | 320×320 | 43 / 53 / 56 | 0.60 | <16 / <22 |
| 592 / 562 | 48 / 60 | 400×400 | 420×420 | 43 / 56 | 0.70 | <16 / <22 |
Beam expanders
Thread: M22×0.75 on every magnification.
| Magnification | Input CA (mm) | Output CA (mm) |
|---|---|---|
| 1.5× | 12 | 14 |
| 2× | 12 | 14 |
| 2.5× | 9 | 19 |
| 3× | 9 | 19 |
| 4× | 9 | 19 |
| 5× | 9 | 19 |
| 6× | 9 | 20 |
| 8× | 9 | 20 |
RFQ checklist for F-θ and CO₂ assemblies
Working distance is returned when galvo aperture and field are known — tell us galvo aperture and field, and we will return working distance. Incomplete RFQs delay quotes; send the fields below with wavelength and power.
Send these fields
- Wavelength — 9.3 or 10.6 µm (buyer must pick one)
- Galvo / entrance aperture — clear aperture or entrance beam diameter (F-θ Entrance Ø columns; 3-axis CA 30 / 50 / 70)
- Design field size — map to F-θ Design/Actual field or 3-axis Scan field ranges
- Laser power — include in every RFQ (example model only: SL3-9.3-60-90-14 under 500 W; other ratings confirm with factory)
- Optional — target spot, preferred EFL (catalog 73–592 mm), expander magnification (1.5×–8×, thread M22×0.75)
- F-θ mount — standard thread M85×1
For a working-distance quote, email [email protected] or use the inquiry form with galvo clear aperture, wavelength (9.3 or 10.6 µm), laser power, and design field size. Substrate and coating language for custom ZnSe: ZnSe material page.
Questions buyers ask
- What F-theta scan lens do I need for a 300×300 mm CO₂ field?
- From the catalog, EFL 450 mm covers a 300×300 mm design field (320×320 mm actual) with ~0.60 mm spot. Send galvo aperture, wavelength (9.3 or 10.6 µm) and power for a working-distance quote.
- Are THOI scan lenses ZnSe?
- Yes. The F-theta, three-axis and expander assemblies use zinc selenide optics in black barrels, AR-coated for 9.3 / 10.6 µm CO₂ lasers.
- What thread is on the beam expanders?
- M22×0.75 on every magnification from 1.5× to 8×.
- What galvo aperture, wavelength, and power should I send for an F-theta quote?
- Send (1) galvo clear aperture or entrance beam diameter, (2) wavelength — 9.3 or 10.6 µm, (3) laser power, and (4) design field size. The catalog maps EFL to design/actual field and spot (for example, EFL 450 mm → 300×300 mm design / 320×320 mm actual, ~0.60 mm spot). Standard F-θ thread is M85×1. We return working distance from your galvo aperture and field. Quote via the inquiry form or [email protected].
- How do I choose a three-axis CO₂ marking head (C30 / C50 / C70)?
- Match clear aperture and field to the published table: C30 — CA 30, fields 200×200–800×800 mm, typical spot 150 µm @ 200×200; C50 — CA 50, fields 300×300–800×800 mm, 150 µm @ 300×300; C70 — CA 70, fields 300×300–800×800 mm, 110 µm @ 300×300. Working distances are calculated from the maximum galvo scan angle for the requested field. Include wavelength (9.3 or 10.6 µm) and power in the RFQ.