Handheld laser welding
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Laser optics · Procurement enquiries
Handheld Laser Welding Protective Lenses
Compare 18 × 2, 20 × 2, 20 × 3 and 20 × 4 mm handheld welding protective-lens enquiries. Confirm the welding head and part reference before ordering.
Exact specification and supply terms are confirmed in the quotation.
One welding selection page, four nominal sizes
Select the requested diameter and thickness together. The three 20 mm options remain distinct records; a shared diameter does not establish that a holder accepts all three thicknesses.
- 18 × 2 mm
- 20 × 2 mm
- 20 × 3 mm
- 20 × 4 mm
Available nominal sizes
Choose a nominal size to prepare an enquiry. Listed dimensions do not establish stock, optical grade or verified compatibility.
4 nominal size options
Handheld laser welding
Prepare enquiry →Handheld laser welding
Prepare enquiry →Handheld laser welding
Prepare enquiry →Welding-head model & position
Provide the exact welding-head model, revision, window location and existing part number. References to SUP, Qilin, Hanwei or another maker are used only to describe the compatibility enquiry.
Power grade verification
Provide the source wavelength and operating power. No window power rating is inferred from a handheld-welding application label.
Specifications
Nominal dimensions below are enquiry options. Confirm dimensional tolerances, material, coating and optical performance for each quoted line.
| Nominal enquiry size | Requested diameter | Requested thickness | Basis |
|---|---|---|---|
| 18 × 2 mm | 18 mm | 2 mm | Enquiry dimensions; supplied specification requires confirmation |
| 20 × 2 mm | 20 mm | 2 mm | Enquiry dimensions; supplied specification requires confirmation |
| 20 × 3 mm | 20 mm | 3 mm | Enquiry dimensions; supplied specification requires confirmation |
| 20 × 4 mm | 20 mm | 4 mm | Enquiry dimensions; supplied specification requires confirmation |
How to order mixed sizes
List quantity separately for each size. Keep each line linked to its welding-head model and part reference, particularly when purchasing for several machines.
Compatibility Matrix
Compatibility can vary by head revision, optical position and power grade. Use the references below as a purchasing guide and share the exact model or part number when available.
Verified Reference: confirmed exact-configuration evidence. Common Reference: an association recorded in existing professional research. Model Check Required: brand or series level only — share your exact head model or part number.
| Maker / head reference | Nominal size reference | Reference Status | Notes | Action |
|---|---|---|---|---|
| WSX Unspecified head | 18 × 2 mm | Common Reference | Research size context: 18x2 / 30x5 / 32x5. | Check configuration → |
| OSPRI Exact model required | Confirm from part reference | Model Check Required | Provide the exact head model and part reference for checking. | Send model → |
| SUP Exact model required | Confirm from part reference | Model Check Required | Provide the exact head model and part reference for checking. | Send model → |
| Qilin Exact model required | Confirm from part reference | Model Check Required | Provide the exact head model and part reference for checking. | Send model → |
| Hanwei Exact model required | Confirm from part reference | Model Check Required | Provide the exact head model and part reference for checking. | Send model → |
5 reference rows
Read the cross-reference guide →Frequently Asked Questions
Can I replace 20 × 2 mm with 20 × 3 or 20 × 4 mm?
Do not assume interchangeability. Confirm the thickness, mounting clearance and exact part specification against the head documentation.
Does the listed size confirm compatibility?
No. Treat the dimensions as an enquiry starting point. Confirm the head model, revision, window position, drawing and required optical specification before ordering.
How are power grades confirmed?
Ask for evidence tied to the exact material, coating, wavelength and operating conditions of the quoted part. A machine power label or nominal window size is not a verified grade for the replacement.
What are the MOQ, stock and lead time?
Request a quotation with your size and quantity. Availability, minimum order quantity and delivery timing are confirmed for the quoted configuration.
Prepare a complete enquiry
Send the details you know. Leave uncertain inputs open for confirmation.
| Enquiry input | What to provide |
|---|---|
| Size | Diameter × thickness in mm; include drawing tolerances if available. |
| Cutting Head Model | Exact head maker, model, revision and installation position; for welding, provide the welding-head model. |
| Laser Power | State the machine operating power as an enquiry input, not as a window rating. |
| Wavelength | Provide the laser-source wavelength from the equipment documentation. |
| Quantity | Quantity per size, sample needs and repeat-order forecast if known. |
| Part Number | Copy the existing part reference exactly; identify whose reference it is. |
| Photo / Drawing Reference | Include an accessible reference link or document identifier in your enquiry. No upload is offered here. |
Product enquiry: Handheld Laser Welding Protective Lenses Size: Cutting / welding head model and position: Laser power: Wavelength: Quantity per size: Part number: Photo / drawing reference:
In the RFQ form, enter size under Dimensions / specification and the quantity in Quantity. Paste this checklist into Additional requirements for the head model, power and part reference. WhatsApp opens the same enquiry inputs. This page does not offer file upload.
Resources & Media
Laser Protective Windows →Laser Optics product family →Optical Component RFQ Checklist →Protective Window Compatibility Cross-Reference →How to Identify Your Laser Protective Window →
Request evidence for the actual part
Use the quotation to confirm the material, coating, inspection record and any required test data. The representative image is for product-category identification only.