Red and white desktop jewelry laser welder with binocular microscope and top-mounted touch screen

Jewelry laser welders

Desktop Jewelry Laser Welder 100 / 200 W (Nd:YAG, water-cooled)

A bench-top Nd:YAG pulse welder for jewelers who repair and assemble gold and silver pieces every day. It delivers 100 J or more per pulse, aimed through a 10× microscope, and the water chiller is built into the cabinet. It comes in 100 W and 200 W versions.

Laser power: 100 / 200W
Pulse energy: ≥ 100J
Welding depth: up to 2mm
Viewing: 10× microscope

2-year whole-machine warranty
Free operator training
Built to order: voltage, plug, labels

Nd:YAG pulsed laser at 1064 nm, 100 W or 200 W average power
Single pulse energy of 100 J or more; 0.2–15 ms pulse width; 1–20 Hz
Water chiller built into the cabinet, with over-temperature alarm and flow protection
Maxwave in-house pulse power supply (LS-W200 on the 200 W version)
10× microscope with an automatic shading device to protect the operator's eyes

Overview

This desktop welder joins and repairs small metal parts with short, high-energy pulses from an Nd:YAG laser. You hold the piece in the chamber, aim through the 10× microscope and fire single pulses or a fast series. Each pulse melts a small, controlled pool. Heat stays local, so nearby stones, solder joints and polished surfaces are at less risk than with a torch.

Energy, pulse width, frequency and spot diameter are all adjustable. One machine can fill porosity in a casting, rebuild a prong and run short seams on thin-walled parts. The welds are small and smooth, which usually means little finishing afterwards.

Configuration

Laser: Ø7 × 130 mm Nd:YAG rod in a ceramic reflector cavity, 1064 nm, 100 W or 200 W.
Power supply: Maxwave pulse power supply, designed and built in-house (LS-W200 on the 200 W version).
Pulse: 100 J or more per pulse, 0.2–15 ms, 1–20 Hz.
Cooling: water chiller inside the cabinet, with over-temperature alarm and flow protection.
Control: single-chip controller; parameters are set on the control panel.
Viewing: 10× microscope with an automatic shading device for eye protection.
Cabinet: about 750 × 540 × 580 mm and 65 kg. Place it on a sturdy workbench.

Typical applications

Filling sand holes and porosity in gold and silver castings
Rebuilding prongs, rejoining chain links and closing jump rings
Spot-welding findings without solder
Butt, stitch and seal welds on small, thin-walled precision parts

Options and customization

Choose 100 W or 200 W average power. We can set the machine up for your mains voltage and plug type. The machine is specified for 24-hour continuous operation. Every machine carries our 2-year whole-machine warranty, and operator training at our Wuhan factory is free.

Talk to an engineer

Tell us the material, thickness and the result you need. An engineer replies with a matched configuration and a quote.

Send your job details

Need a different setup?

This site shows only part of our range. Other powers and sizes, custom builds and everything around the machine are available on request.

Ask for the rest

Related guide

How to choose a jewelry laser welder

Data

Specifications

Desktop Jewelry Laser Welder 100 / 200 W (Nd:YAG, water-cooled) specifications
Laser type	Nd:YAG, pulsed
Wavelength	1064 nm
Laser power	100 W / 200 W
Max. single pulse energy	≥ 100 J
Pulse width	0.2–15 ms, adjustable
Pulse frequency	1–20 Hz, adjustable
Welding depth	Up to 2 mm
Laser rod	Ø7 × 130 mm Nd:YAG crystal, ceramic reflector cavity
Laser power supply	Maxwave pulse power supply (LS-W200 on the 200 W version)
Cooling	Built-in water chiller with over-temperature alarm and flow protection
Control system	Single-chip (PIC) controller
Viewing system	10× microscope
Eye protection	Automatic shading device
Duty	24-hour continuous operation
Machine size	750 × 540 × 580 mm
Machine weight	65 kg

The spec table does not separate 100 W and 200 W figures, and a smaller cabinet (about 730 × 450 × 580 mm) has also been shown; confirm your build with us.

Wuhan Maxwave Laser Technology Co., Ltd. · sales@zerolineai.com · +44 7762 362563 · Specifications may change; confirm your configuration with us.

Fit

Materials & uses

Materials

Gold
Silver
Bronze
Aluminium
Steel
Titanium

Applications

Jewelry repair
Filling casting porosity and sand holes
Spot, butt and seal welding of thin-walled parts
Small precision parts

FAQ

About this machine

What is the difference between the 100 W and 200 W versions?

Both use the same Nd:YAG pulse design and cabinet. Average power is pulse energy multiplied by frequency, so the 200 W version can keep high-energy pulses at a faster repetition rate, which helps on longer seams and heavier pieces. Our spec table does not list the two versions separately, so ask us for the figures of the version you are considering.

How deep can it weld?

The specification gives a welding depth of up to 2 mm. Actual depth depends on the alloy, the joint and your settings, so send us a sample piece if depth is critical.

Do I need a separate water chiller?

No. The chiller is built into the cabinet and has an over-temperature alarm and flow protection.

How are the operator's eyes protected?

An automatic shading device blocks the laser flash while you look through the microscope, so you can keep working at the eyepieces during welding.

Can it run a full shift?

Yes. The machine is specified for 24-hour continuous operation.