CNSMT Intelligent 3D AOI Machine for SMT PCB Defect Inspection

CNSMT provides high-precision 3D AOI Intelligent PCB Automatic Optical Inspection Machine for pre & post-reflow SMT inspection. Equipped with advanced 3D structured light and AI algorithm, our 3D AOI accurately detects missing components, offset, solder bead and other PCB defects, compatible with automotive PCB, FPC, consumer electronics and new energy circuit boards.
We customize proper models according to customers’ production demands. Matching with our 3D SPI and X-Ray machines, full-process quality control solution is available. Cost-effective SMT inspection equipment helps global manufacturers reduce defect rate and optimize production efficiency.
  • AI algorithm for fast programming & accurate inspection
  • High-precision control platform
  • Smooth dual-drive system: high speed, no vibration & noise
  • High-speed industrial cameras
  • Multi digital projection grating system
  • Micron-level Moiré fringe tech, optional multi-grating against reflection/shadow

 

Vision SystemC910C920C910C920
Inspection MethodAI algorithm, height contour algorithm, vector analysis algorithm, integrated logic operation, double-edge bright boundary distance, component body tracking, OCV brightness template matching, color matching, color extraction (RGB & HSV), spot extreme difference, brightness deviation, minimum brightness variation, average/max height, height flatness and more than 30 algorithms
CameraHigh-speed CCD, 12MP (Optional:25MP)
LensIndustrial Lens
Projection System4-direction Projection Gratings
Light SourceRing RGBW Quad-color LED Light
Optical Resolution15μm (Optional:12μm,10μm,8μm)
FOV60×45mm(15μm) / 48×36mm(12μm) / 40×30mm(10μm)
Performance
3D Height Measurement RangeStandard: -2~20mm, High Precision: -2~10mm
Height Resolution0.4μm
Height Accuracy on a Certified Target±3μm
GRR≤10%
XY Position Accuracy10μm5μm10μm5μm
Inspection TypeMissing part, offset, skewed component, tombstone, reversed part, polarity reversal, damaged component, excess/insufficient solder, short circuit, dimension defect
PCB Warpage±5mm (2%)
Machine Parameters
Board Size Range50×50~510×460mm50×50~510×460mmDual-lane:50×50~510×300mmDual-lane:50×50~510×300mm
Single-lane:50×50~510×560mmSingle-lane:50×50~510×560mm
Top/Bottom Clearance40/40mm40/40mm40/40mm40/40mm
PCB Thickness0.5~5.0mm0.5~5.0mm0.5~5.0mm0.5~5.0mm
Conveyor Height900±20mm900±20mm900±20mm900±20mm
Dimension(W×D×H, excl.Tower Light)1200×1280×1656mm1382×1389×1600mm1200×1520×1656mm1300×1632×1600mm
DriveServo MotorLinear MotorServo MotorLinear Motor
Weight~700kg~900kg~950kg~1150kg
Power Supply220V±10%,50/60Hz,1.6KW220V±10%,50/60Hz,1.6KW220V±10%,50/60Hz,2.5KW220V±10%,50/60Hz,2.5KW
Air Supply0.5MPa,40cm³/min
Operation SystemWindows 10 Pro
PC ParametersCPU:Intel I9, RAM:128G, Storage:1TB SSD+4TB Enterprise HDD, GPU:RTX3060 (12G)
Display24″ LED
UI Display2D & 3D True-color Image

High Integration of AI & Vector Algorithms

The proprietary 3D point cloud reconstruction technology greatly boosts inspection precision and performance, effectively eliminating blind zones of conventional 2D inspection. CNSMT 3D AOI achieves 100% detection rate for tricky defects hard to identify by 2D AOI, such as IC lead lifting and component floating height.

CNSMT 3D AOI Intelligent PCB Automatic Optical Inspection Machine  Matched with 12MP high-definition ultra-high-speed CoaXPress cameras and multiple sets of 1080P digital projection modules, the multi-stage RGBW quad-color tower LED light source enables 360° blind-spot-free digital projection and high-efficiency image capturing.

CNSMT inline 3D AOI automatic optical inspection machine main models and specification
Vision SystemC910C920C910C920
Inspection MethodAI algorithm, height contour algorithm, vector analysis algorithm, integrated logic operation, double-edge bright boundary distance, component body tracking, OCV brightness template matching, color matching, color extraction (RGB & HSV), spot extreme difference, brightness deviation, minimum brightness variation, average/max height, height flatness and more than 30 algorithms
CameraHigh-speed CCD, 12MP (Optional:25MP)
LensIndustrial Lens
Projection System4-direction Projection Gratings
Light SourceRing RGBW Quad-color LED Light
Optical Resolution15μm (Optional:12μm,10μm,8μm)
FOV60×45mm(15μm) / 48×36mm(12μm) / 40×30mm(10μm)
Performance
3D Height Measurement RangeStandard: -2~20mm, High Precision: -2~10mm
Height Resolution0.4μm
Height Accuracy on a Certified Target±3μm
GRR≤10%
XY Position Accuracy10μm5μm10μm5μm
Inspection TypeMissing part, offset, skewed component, tombstone, reversed part, polarity reversal, damaged component, excess/insufficient solder, short circuit, dimension defect
PCB Warpage±5mm (2%)
Machine Parameters
Board Size Range50×50~510×460mm50×50~510×460mmDual-lane:50×50~510×300mmDual-lane:50×50~510×300mm
Single-lane:50×50~510×560mmSingle-lane:50×50~510×560mm
Top/Bottom Clearance40/40mm40/40mm40/40mm40/40mm
PCB Thickness0.5~5.0mm0.5~5.0mm0.5~5.0mm0.5~5.0mm
Conveyor Height900±20mm900±20mm900±20mm900±20mm
Dimension(W×D×H, excl.Tower Light)1200×1280×1656mm1382×1389×1600mm1200×1520×1656mm1300×1632×1600mm
DriveServo MotorLinear MotorServo MotorLinear Motor
Weight~700kg~900kg~950kg~1150kg
Power Supply220V±10%,50/60Hz,1.6KW220V±10%,50/60Hz,1.6KW220V±10%,50/60Hz,2.5KW220V±10%,50/60Hz,2.5KW
Air Supply0.5MPa,40cm³/min
Operation SystemWindows 10 Pro
PC ParametersCPU:Intel I9, RAM:128G, Storage:1TB SSD+4TB Enterprise HDD, GPU:RTX3060 (12G)
Display24″ LED
UI Display2D & 3D True-color Image
 pcb aoi spi inspection
pcb aoi spi inspection

CNSMT inline 3D AOI automatic optical inspection equipment adopts mature 3D imaging and AI intelligent algorithms to deliver high-precision, easy-to-commission and cost-effective full-process quality inspection solutions for SMT production lines. It is widely applicable to mass production of consumer electronics, automotive PCBs, new energy circuit boards, industrial control PCBs and other products.

CNSMT inline 3D AOI automatic optical inspection machine Equipped with a 12MP ultra-high-speed CoaXPress industrial camera and multiple sets of 1080P digital projection modules alongside a multi-stage RGBW four-color LED tower light source, the unit enables 360° blind-spot-free image acquisition. Combined with Moiré fringe N-step phase-shift measurement technology, the machine achieves micron-level inspection precision with height detection accuracy within ±3μm. It reliably identifies hidden defects undetectable by conventional 2D AOI such as lifted IC leads, component floating height, cold solder joints and insufficient solder, reaching nearly 100% defect detection rate.

Powered by integrated AI and vector hybrid algorithms, the machine supports one-click automatic AI programming. After importing PCB documents, the system automatically captures component features and eliminates time-consuming manual point-by-point calibration.

Programming time for standard samples is shortened from several hours to just over ten minutes, minimizing production downtime for parameter setup. Built with a dual-drive motion control system, the equipment runs smoothly at high speed with low noise and zero vibration, supporting round-the-clock non-stop inline mass production while ensuring long-term durability and inspection efficiency.

Committed to superior cost performance without excessive brand markup, CNSMT inline 3D AOI automatic optical inspection machine featuring imported-grade configurations at domestic pricing to help global SMT manufacturers cut costs and boost productivity. Supported by full-range pre-sales selection consultation, on-site commissioning and after-sales maintenance services, we assist customers in constructing intelligent, high-efficiency closed-loop SMT inspection lines. Our solutions realize full quality control from post-paste inspection to post-reflow testing, effectively reducing scrap rates and accelerating the intelligent transformation of electronics factories.

 pcb aoi spi inspection
pcb aoi spi inspection
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