Semsons Tech
Jewellery Laser Welding & Spot Welding Machines
A jewellery laser welder joins, repairs and builds up precious metal with a focused pulse instead of a flame — close to stones, close to finished surfaces, without the heat spread that makes torch work risky on set pieces. Semsons Tech has received a Best Laser Welding Machine award for this range.
The headline platform is our jewellery spot welding machine, built around a YAG single-doped laser source. Its catalogue-stated feature set is aimed squarely at production repair and fabrication: sweet spot, speed mode, pulse ramping, dual display, micro weld, user-friendly control, and an in-built chiller so the machine holds its duty cycle through a full shift.
Technical parameters
Specifications
| Laser source | YAG Single-Doped Laser |
|---|---|
| Frequency of laser | 0.1–20 Hz |
| Speed | 1064 nm |
| Output power | 200 W |
| Single pulse energy | 150 J |
| Pulse width | 0.1–20 ms |
| Focal spot diameter | Adjustable 0.2–3.0 nm |
| Viewing system | 10× Microscope & CCD System |
| Control system | Integrated Visual Operating System |
| Cooling system | Chiller & Wind Cooling System |
In this range
Models we supply
Jewellery Spot Welding Machine
Main platform — 200 W YAG, 150 J single pulse, 10× microscope and CCD viewing, in-built chiller.
ST-110J
Additional jewellery welding variant shown in the catalogue.
Answers
Common questions
Written to be useful before you buy, not after.
Can a jewellery laser welder work near set stones?
That is the main reason to own one. The pulse is focused and short — 0.1 to 20 ms at an adjustable focal spot — so heat is delivered locally instead of spreading across the piece the way a torch does. Combined with 10× microscope and CCD viewing you can place a weld precisely where it is needed. Stone type and proximity still matter, so we set the machine up on your actual work during commissioning.
What is pulse ramping and why does it matter?
Pulse ramping shapes how power is delivered across the pulse rather than dumping it all at once. In practice it gives cleaner welds with less spatter and less cracking on sensitive alloys — one of the catalogue-listed features alongside sweet spot, speed mode and micro weld.
Do I need a separate chiller?
No. The catalogue specifies a chiller and wind cooling system built into the machine, which is what lets it hold output through a production shift rather than needing to rest.
Is laser welding the same as spot welding?
In our range the jewellery spot welding machine is a laser machine — the "spot" refers to the small, localised weld it produces. That is different from resistance tick welding or hydra welding, which the catalogue lists separately at stage eight of the factory workflow.
Get in touch
Enquire about Jewellery Laser & Spot Welding Machines
Tell us what you are producing and we will recommend the right model — including when the honest answer is that you do not need this machine yet.
Enquire about Jewellery Laser & Spot Welding Machines
Share your production requirement and we will come back within one working day with the right model, a realistic throughput estimate and a quotation.