DOYA 200W YAG Stand-Type Laser Welding Machine for Jewellery (DWJ-200)

DOYA 200W YAG Stand-Type Laser Welding Machine for Jewellery (DWJ-200) 

The DOYA DWJ-200 Jewellery Laser Welding Machine is a high-precision welding system designed for jewellery manufacturers, repair shops, and industries that require ultra-fine welding of micro and small components. Its advanced laser spot-welding technology ensures exceptional accuracy, minimal heat distortion, and outstanding weld quality across a wide range of materials.

Principle & Precision

The DWJ-200 uses laser spot welding based on heat conduction.
Laser radiation heats the workpiece surface, and the energy diffuses inward to form a controlled molten pool.

Critical welding parameters—pulse width, energy, peak power, and repetition frequency—are precisely regulated, ensuring:

• Extremely accurate welds
• Minimal heat-affected zones
• No damage to surrounding materials

Key Features

High Precision Welding

• Adjustable focal spot diameter from 0.1 mm to 3.0 mm
• Suitable for delicate, intricate, and micro-sized welds
• Ideal for fine jewellery work and precision part repair

Advanced Visual Observation

• Dual CCD visual imaging system
• Integrated microscope for high-clarity, magnified viewing
• Enables accurate positioning and real-time monitoring of the weld area

Wide Material Compatibility

Works effectively on:

• Gold, Platinum, Titanium
• Silver, Copper, Nickel
• Aluminium, Magnesium
• Stainless Steel
• And other metal alloys

Inert Gas Protection

• Uses Argon gas to prevent oxidation
• Ensures clean, bright, and high-quality weld joints

Applications

While primarily designed for jewellery production and repair—such as:

• Ornament fabrication
• Ring resizing
• Prong rebuilding (re-tipping)
• Stone fixing and gap filling

Its high precision also makes it suitable for:

• Eyewear frame welding
• Medical instruments & titanium dentures
• Electronic components
• Small automotive parts
• Aviation & aerospace micro-components