SPDPHOTO Tech
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LN Series Fine Wire Particle Defect Detection System

Considering that fine wire production environments often involve simultaneous production of multiple wires, the LN-2000 and LN-3000 systems feature multiple detection heads, enabling a single host to support up to 16 detection heads for monitoring 16 production lines simultaneously.


The LN-1005 and LN-2004 measurement heads integrate advanced miniaturized optoelectronic components and high-speed analog signal processing technology, offering a solution for non-contact detection of micron-level surface particle defects.



Applicable Diameter Range
0.02 mm - 5 mm
Applicable Line Speed5 - 1500 m/min


LN Series Concave and Convex Particle Defect Detector
During production, defects such as concave and convex irregularities are often caused by issues with raw materials, processes, or equipment.

The LN series micro-wire particle defect detector uses advanced miniaturized optoelectronic components and high-speed analog signal processing technology, offering an innovative solution for non-contact detection of micron-level particle defects on surfaces. It is especially suitable for monitoring various process steps on high-speed production lines, including drawing, coating, sheathing, and coloring. The system can accurately detect and characterize a range of fine defects, such as bulges, necking, blisters, bubbles, coarse segments, scratches, particle contamination, coating delamination, and bruises.




Applicable Diameter Range
0.015 mm - 0.8 mm
Applicable Line Speed5 - 1500 m/min

HV Series High-Voltage Pinhole Detection for Enameled Wires

The HV-1000 is a high-voltage testing system designed specifically for detecting insulation defects in enameled wires. It generates adjustable DC high voltage from 200V to 3000V, making it ideal for testing the insulation quality of wires of various specifications. The system allows precise voltage adjustments to meet the requirements of different wire types.



Applicable Diameter Range
0.02 mm - 1 mm
Applicable Line Speed5 - 1500 m/min
Voltage Range200V - 3000V

LNV Series High-Voltage Pinhole and Particle Defect Detection System

The high-voltage pinhole and particle defect detection system combines the HV series high-voltage pinhole detection system and the LN series fine wire particle defect detection system, providing a comprehensive solution for simultaneous high-voltage pinhole and fine wire particle defect detection. Utilizing two distinct detection principles, the system performs non-contact surface defect and high-voltage pinhole inspections, ensuring effective quality monitoring under high-speed production conditions.




Applicable Diameter Range
0.02 mm - 1 mm
Applicable Line Speed5 - 1500 m/min
Voltage Range200V - 3000V


LSG Series Multi-Head Integrated Laser Measurement and Control System

Proven Solution for Multi-Wire Production Lines:
The LSG-3000 Multi-Head Integrated Laser Measurement and Control System is a high-performance, cost-effective solution for online outer diameter detection. Capable of driving up to 48 measurement heads simultaneously, this system utilizes high-speed DSP processing technology to ensure efficient data acquisition, calculation, and communication. Each measurement head delivers exceptional accuracy and reliability, meeting the demands of modern multi-wire production environments.



Applicable diameter range
0.015mm - 3mm
Accuracy up to
±0.3μm
LSG Series Runout Measurement and Control System

Specifically designed for high-precision, non-contact automatic measurement of maximum diameter, maximum value, minimum value, roundness, and runout for bars, tubes, milling cutters, and drill bits. This system overcomes the drawbacks of conventional contact measurement methods, such as surface scratching and instrument wear.



Applicable diameter range
0.1mm - 30mm
Accuracy up to
±0.5μm

LSG Series Ovality Measurement System

The LSG-5000 series performs 360-degree scanning of clamped wires, completing precise measurements through over 100 positioning points within 2–3 seconds. Its comprehensive scanning technology ensures every detail is accurately captured, providing real-time display of the wire's average value, ovality, maximum, and minimum dimensions.



Applicable diameter range
0.015mm - 3mm
Accuracy up to
±0.15μm

LSG Automated Inspection Laser Measurement and Control System

For multiple production lines running in parallel, our solution offers an ideal balance of cost and efficiency for measuring the diameter of each wire. 


The LSG-6000 inspection-based laser measurement system is suitable for setups with 1 to 40 lines, with a detection speed ranging from 3 to 10 seconds per wire, adjustable to meet specific production requirements.





Applicable diameter range
0.02mm - 6mm
Accuracy up to
±0.3μm


LSG Series Flat Wire Laser Measurement and Control System
The system uses dual laser detection heads with auxiliary fixtures for non-contact, high-precision online or offline measurements. Its advanced edge detection technology excels in flat product measurements, ensuring high accuracy and efficiency. The laser scanning system provides precise measurements without damaging the surface of the object, making it ideal for industrial applications requiring high-precision measurements.





Applicable diameter range
0.1mm - 30mm
Accuracy up to
±0.5μm