Scotle Jewelry Laser Spot Welding Machine
The Scotle Jewelry Laser Spot Welding Machine is designed for precision welding, repair, and production of gold, silver, K-gold, stainless steel, copper, and other metal jewelry. Its small laser spot, low heat-affected area, microscope or CCD viewing system, and foot-pedal control enable accurate welding of rings, chains, clasps, fine wires, and other delicate components.
Nd YAG jewelry laser welding machines
Nd:YAG jewelry laser welding machines are precision micro-welding systems designed for jewelry manufacturing and repair.They are ideal for welding gold, silver, platinum, and other precious metals, delivering high accuracy with controlled heat input and minimal thermal impact.Equipped with microscope or CCD visual systems, Nd:YAG laser welders enable clean, precise welds on delicate jewelry parts without deformation or discoloration.Not recommended for thick industrial steel welding.
Scotle currently offers two Nd:YAG jewelry laser welding machine models, as listed below.
• Compact Desktop Design – Space-saving size, ideal for jewelry studios and retail repair shops
• Air-Cooled System – Plug-and-play operation, low maintenance, no external water chiller required
• CCD Camera + Microscope – Dual visual positioning for accurate and confident micro welding
• Pulsed Nd:YAG Technology – Low heat input, safe for gold, silver, and delicate jewelry parts
• Ideal for Daily Jewelry Repairs – Perfect for rings, chains, prongs, fillings, and fine adjustments
• Water-Cooled System – Higher stability and longer duty cycle for continuous jewelry welding
• Professional Vertical Structure – Designed for workshop and production-level use
• CCD Camera + Microscope – Dual visual positioning for precise and confident micro welding
• Pulsed Nd:YAG Technology – Excellent control on gold, silver, and precious metals
• Low Thermal Stress – Minimal heat-affected zone, no deformation or discoloration
What Is YAG / Nd:YAG Laser Welding for Jewelry Spot Welding?
What Is YAG / Nd:YAG Laser Welding?
YAG laser welding is a solid-state laser welding technology based on a Nd:YAG crystal, operating at a wavelength of 1064 nm.
In the jewelry industry, the term “YAG laser” almost always refers to Nd:YAG pulsed laser welding, which is widely used for precision spot welding and micro repair.
YAG vs Nd:YAG – What’s the difference?
This is one of the most common points of confusion for customers.
YAG (Yttrium Aluminum Garnet) is the crystal material used inside the laser system.
By itself, YAG does not generate laser light. It acts as the carrier and working medium.
Nd:YAG means that neodymium (Nd) is added to the YAG crystal.
Only after this doping process does the crystal become active and capable of producing a laser beam.
That is why, in industrial usage, you will often see:
YAG laser ≈ Nd:YAG laser
In simple terms, YAG is the crystal carrier, while Nd:YAG is the working laser.
Spot Laser Welding vs Nd:YAG — What’s the Relationship?
Spot laser welding is a welding method, while Nd:YAG is the laser type.
What Is Spot Welding?
Welding at a single point or very small area
Short-duration, pulsed energy release
Typical weld spot diameter: 0.2–3 mm
Spot = welding process
Nd:YAG is a laser generation method that uses a 1064 nm wavelength and produces high-peak-power pulses for precise spot welding.
They do not conflict In jewelry applications, they are the ideal combination
Why Nd:YAG is the standard for jewelry spot welding？
Jewelry welding requires extremely fine control. The parts are small, delicate, and sensitive to heat.
Nd:YAG lasers are especially suitable because they operate in pulsed mode, allowing precise energy delivery in very short bursts.
This offers several key advantages:
Pulsed output with high peak power
Extremely small weld spots (approximately 0.2–3 mm)
Minimal heat-affected zone
Low risk of burning, deformation, or discoloration
Excellent results on gold, silver, and K gold jewelry
Ideal for repair welding, hole filling, and micro spot welding
Because of this balance between precision and heat control, Nd:YAG remains the preferred choice for professional jewelry laser welding machines.
Nd:YAG vs Fiber Laser (for jewelry applications)
| Item | Nd:YAG Jewelry Laser | Fiber Laser |
|---|---|---|
| Working mode | Pulsed | Continuous |
| Weld spot control | ★★★★★ | ★★ |
| Heat input | Very low | High |
| Jewelry suitability | Highly suitable | Not recommended |
| Typical power | 60–200W | 500W+ |
Conclusion:
Jewelry spot welding requires pulsed Nd:YAG technology, not continuous-wave fiber lasers.
Inside the Nd:YAG Laser System
What does a YAG crystal look like?
The YAG crystal （the above picture showed）is typically a transparent or light purple cylindrical rod, precisely polished on both ends.
The color comes from neodymium (Nd) doping. Pure YAG without Nd is almost completely transparent.
Where is it inside the machine?
In a Nd:YAG jewelry laser welder, the crystal is sealed inside the laser cavity, together with:
Xenon lamp
Reflective chamber
Cooling system (air or water)
It is not visible during normal operation and is not a consumable part.
How does a YAG Laser Work?
The working process：Xenon lamp → excites YAG crystal → Nd ions are activated → 1064 nm laser is generated
Common Misunderstandings
Thinking YAG is just a piece of glass Thinking it is an optical fiber Thinking it is a frequently replaced consumable
Correct understanding:
YAG is a solid-state laser crystal and a core component, but not a routine consumable
Practical Maintenance Reality
In Nd:YAG jewelry laser welding machines:
🔧 Commonly replaced part: Xenon lamp
❌ Rarely replaced: YAG crystal
The YAG crystal typically lasts 8–10 years or longer under normal use.
Application of YAG Jewelry Laser Welding Machines
Get a Fast Quote for Your Application
Reply within 12–24 hours. Factory-direct support
email address
sales08@scotle.com
Phone number
(86)13725576791
(86)18902847621
location address
No.14, 2F, Building Y1, Bantian Street Creative Park, Longgang District, Shenzhen 518000 ,China (Mainland)
