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About SPDPHOTO
To better meet the higher standards of product quality and performance set by customers, the parent company, AMG Technology, launched the SPDPHOTO premium brand and established a subsidiary, SPD Technology, as its high-tech R&D center. The company has successively introduced a team of PhDs and master's degree holders in relevant fields, bringing together a professional team with extensive experience in design, production, and sales.
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We Can Solve Problems For These Industries
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  • Fine wires
  • Electronic communication cables
  • Flat wires
  • Medical supplies
  • Tobacco products
  • Electronics industry & Photovoltaics
  • Milling cutters & Drill bits
  • Pipes
  • Steel
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SPDPHOTO Tech
Main Products
Fine Wire Laser Diffraction Diameter Gauge

Using the Fraunhofer diffraction principle, it achieves precise outer diameter measurement of ultra-fine wires. This method ensures high accuracy even for extremely small diameter wires, making it ideal for micro-wires, and other fine materials.



Applicable diameter range
0.015mm - 0.8mm
Accuracy up to
±0.3μm

LIG Series Laser Diffraction Diameter Gauge

The LIG series devices use the Fresnel diffraction principle with a multi-spectral parallel laser light source, which effectively reduces ambient light interference, improving measurement stability and precision. This makes them particularly suitable for complex industrial environments.




Applicable diameter range
0.4mm - 20mm
Accuracy up to
±5μm