Explore our flagship bench-top, vertical, and multi-axis CNC laser machines precision-calibrated for gold jewelers, dental laboratories, mold rebuilders, and high-spec metal fabricators.
Precious metals exhibit physical traits that challenge traditional fusion joining. Understanding photon-to-electron coupling is the foundation of high-yield jewelry manufacturing and hermetic electronics sealing.
Solid pure gold (Au) reflects up to 98% of incident photon energy at the standard infrared wavelength of 1,064 nm. A conventional continuous-wave laser risks either reflection back into the optical delivery cable or sudden thermal runaway once the liquid phase is reached.
Micro-welding requires absolute control over spot diameter and energy distribution. Traditional Gaussian beams produce sharp thermal gradients, leading to central weld depression and undercut.
While 24-karat gold does not oxidize, standard alloy compositions (such as 18K yellow, 14K white, and rose gold) contain reactive copper, zinc, nickel, and silver that form brittle oxides upon melting.
Technical Insight: When laser welding white gold alloys containing nickel, micro-cracking often occurs due to thermal contraction stresses. Youmir’s proprietary 16-segment pulse-shaping firmware enables progressive post-pulse thermal annealing, lowering reject rates below 0.12% in certified automated jewelry operations.
Transparent factory-direct cost ranges based on laser source technology, duty cycles, optical configurations, and automation integration levels.
| Equipment Category | Laser Source / Wavelength | Average Power / Peak Power | Spot Diameter | Target Applications | Factory FOB Price (USD) |
|---|---|---|---|---|---|
| Desktop JewelWelder 60 Entry / Studio |
Nd:YAG Crystal 1,064 nm |
60 W continuous 4.5 kW peak |
0.2 – 2.0 mm adjustable | Retail repairs, chain joining, ring sizing, prong re-tipping | $2,850 – $3,600 |
| Pro-Studio YAG-100 Workshop Grade |
Pulsed Nd:YAG 1,064 nm |
100 W continuous 7.0 kW peak |
0.15 – 2.2 mm | Heavy ring casting repairs, porosity filling, silver & 18K gold | $3,800 – $4,950 |
| Heavy-Duty YAG-200 Cabinet High Throughput |
Dual-Lamp Nd:YAG 1,064 nm |
200 W continuous 11.0 kW peak |
0.1 – 2.5 mm | Continuous 2-shift jewelry factories, platinum, thick bangles | $5,200 – $6,800 |
| QCW Precision Fiber 150/1500 Optoelectronic Edge |
Quasi-CW Fiber Source 1,070 nm (M² < 1.2) |
150 W continuous 1,500 W peak |
0.05 – 0.8 mm | Ultra-fine filigree, microelectronics, titanium & 24K pure gold | $7,500 – $9,800 |
| Multi-Axis CNC Laser Auto-Cell Industry 4.0 |
Fiber / QCW Integrated 1,070 nm or 532 nm |
200 W – 500 W Vision-guided |
0.08 – 1.2 mm | Fully automatic chain assembly, medical components, luxury watches | $14,500 – $28,000 |
Shenzhen Youmir Laser Technology Co., Ltd. operates at the core of the world’s leading optical and electronics ecosystem in Guangming District, Shenzhen. Our vertical manufacturing model strips out multi-tiered distributor markups while guaranteeing traceable component sourcing.
We do not merely assemble external kits. We design proprietary laser cavitations, precision beam delivery heads, multi-language CNC motion kernels, and pulse-forming switchboards in-house.
Situated within an 8-kilometer radius of top-tier optic lens manufacturers, chiller specialists, and CNC precision casting foundries, our production lead times average under 7 business days.
Every laser resonator undergoes rigorous thermal stress cycling, power stability logging over 72 hours, and real gold sample test burns before packing and dispatch.
We provide full customs brokerage, ISPM-15 export wooden crating, and direct doorstep air/sea shipping to over 50 countries, with all customs documentation handled seamlessly.
While gold laser welding is celebrated in luxury jewelry manufacture, its exact energy delivery makes it indispensable in mission-critical precision electronics, healthcare, and horology.
In high-end watchmaking, joining 18K yellow and rose gold watch cases, bracelet links, and bezel bezels requires non-destructive joining that preserves pristine brushed or polished finishes.
Biocompatible gold and platinum-iridium alloys are widely utilized in dental bridge reconstruction, pacemaker leads, and neurological implant electrodes.
Precision hermetic packaging for military, aerospace, and MEMS sensors relies on gold wire micro-bonding and kovar-gold lid perimeter sealing.
Purchasing capital laser equipment from China requires rigorous compliance verification, power grid adaptation, and dedicated after-sales SLA commitments.
Laser safety is paramount in commercial workshops and cleanroom facilities. Youmir equipment meets all international safety benchmarks:
Different international regions operate under widely varied mains power and ambient temperature profiles:
Downtime in high-value jewelry and assembly facilities incurs steep financial penalties. Youmir provides robust lifecycle support:
Expert answers to the most critical technical, commercial, and metallurgical questions raised by manufacturing executives and procurement directors.
Solid gold’s thermal conductivity is exceptionally high (~318 W/m·K), paired with extreme optical reflectance (>95% at 1,064 nm). A continuous-wave (CW) laser pumps heat into the entire body of the jewelry faster than it can establish a localized melt pool, risking melted prongs, loosened gemstones, and widespread distortion.
In contrast, a pulsed Nd:YAG or Quasi-Continuous Wave (QCW) fiber laser delivers massive peak power (e.g., 4,000 to 7,000 W) in millisecond bursts. This instantly breaches the reflectivity threshold and vaporizes a microscopic keyhole to couple laser energy efficiently into the metal. The material melts and re-solidifies before heat can conduct into adjacent areas, keeping the heat-affected zone (HAZ) under 0.05 mm.
Yes. Diamonds, sapphires, and rubies have high heat resistance and do not absorb the 1,064 nm infrared wavelength, allowing welds as close as 0.2 mm to the stone girdle. However, stones should never be directly hit by the focused beam. For thermal-sensitive or porous stones such as emeralds, opals, turquoise, and pearls, operators place a protective barrier or angle the spot away from the gem.
A classic pulsed Nd:YAG welder uses a xenon flash lamp with a rated lifespan of roughly 5 to 8 million pulses (around 12 to 18 months under typical workshop use), costing approximately $80 to $150 to replace. Deionized cooling water and internal filters must also be refreshed every 3 to 6 months.
A Quasi-Continuous Wave (QCW) fiber laser uses solid-state semiconductor diode pumping with an expected diode life exceeding 100,000 hours (nearly 10 years of multi-shift operation). It uses 70% less electricity, requires no lamp changes, and needs less chiller maintenance. While the initial equipment cost is 30% to 50% higher, QCW fiber models yield lower total cost of ownership (TCO) in automated 24/7 manufacturing environments.
Welding in ambient air causes alloyed copper, silver, and zinc to react with atmospheric oxygen and nitrogen, producing dark copper oxides (CuO/Cu2O) and microscopic inclusions that cause joint embrittlement. Using Grade 5.0 (99.999% pure) argon gas at a flow rate of 4 to 8 liters/minute creates a clean, oxide-free protective envelope.
For platinum-gold joins, argon-helium mixtures (75% Ar / 25% He) are frequently used because helium raises the ionization threshold and delivers deeper, smoother weld profiles that require minimal final wheel buffing.
We invite enterprise clients to ship real workpieces and alloy wires to our Shenzhen application laboratory. Our optical engineers execute joining tests across varying pulse shapes, frequencies, and gas shielding setups, providing:
Complete your production facility with Youmir’s specialized heavy-deposition mold repair systems, continuous high-power fiber welders, and galvanometer micro-joining workstations.
Connect directly with Shenzhen Youmir Laser’s application engineering team. Send sample drawings, request material weld testing, or evaluate custom OEM manufacturing options tailored to your local power and compliance requirements.
