CY-330R/445R/460R/530R PCB Reject Conveyor


  • Variable speed control

  • Compatible SMEMA interface

  • Stability enhanced by robust design

  • Store up to 5 boards, total height: 20mm

  • Reject, inspect and by-pass modes provided

  • Customize the PCB stop position when loading

Customization is always available, please mark down your need when contact us.

What is a PCB reject conveyor?

A PCB reject conveyor is a specialized system engineered to automatically divert defective printed circuit boards (PCBs) off the production line during assembly for later analysis or rework. They enable swift quality control in electronics manufacturing.

The critical role of quality control in electronics assembly

Maintaining stringent quality standards is crucial for electronics manufacturers to deliver reliable, high-performance products and avoid costly recalls. PCB reject conveyors support this through automated defect removal.

How PCB reject conveyors contribute to improved product quality

By seamlessly ejecting faulty PCBs before further processing, reject conveyors prevent the production of defective finished goods. This results in overall quality improvement and reduced failure rates.

Future trends in PCB reject conveyors

Emerging trends include integrating AI-based vision inspection, cloud-based monitoring, and machine learning to optimize conveyor controls and defect analysis.

Understanding PCB Reject Conveyors

Definition and basic components

PCB reject conveyors comprise a conveyor belt to transport boards, sensors to detect faults, and pneumatic or mechanical systems to reliably divert defective PCBs.

Types of PCB reject conveyors

Pneumatic rejection systems:

Use air blasts or pusher arms to divert faulty PCBs at high speeds.

Mechanical rejection systems:

Use moving arms or trapdoors for positive rejection control. Slower but handle delicate boards.

Working principle and operation

During inline inspection, any fault triggers the reject signal, activating the pneumatic/mechanical system to accurately divert the PCB from the line for rejection.

Benefits of Using PCB Reject Conveyors

Improved product quality and defect detection

Automated rejection removes defective boards early, enhancing quality. Defect analysis provides process insights.

Reduction in defective product accumulation on the production line

Continuous removal of bad boards prevents buildup and confusion on assembly lines.

Minimized downtime and increased throughput

Early defect removal reduces rework-related downtime. Uninterrupted production increases line throughput.

Enhanced traceability and data analysis

Valuable data like reject types, counts, and batches aids root cause analysis and preventive action.

Cost savings in the long run

Scrap reduction, yield improvement and preventing field failures translate to significant long-term cost savings.

Key Features of PCB Reject Conveyors

Conveyor belt materials and design considerations

Belts utilize conductive/dissipative materials and cleats for safe PCB handling. Custom widths suit different boards.

Reject mechanism types and precision

Pneumatic systems offer speed while mechanical arms provide precision and control needed for delicate PCBs.

Integration with automated inspection systems

Seamless integration with SPI, AOI, ICT minimizes false rejects and enables data exchange.

Compatibility with different PCB sizes and shapes

Adjustable rails, width and length configurations allow handling various PCB form factors.

Industries and Applications

Electronics manufacturing and PCB assembly

Reject conveyors are indispensable for quality control during high-volume PCB assembly across consumer, industrial, and telecom electronics sectors.

Automotive electronics production

Stringent quality requirements in automotive electronics production make these systems critical for identifying the smallest defects.

Aerospace and defense electronics

Mission-critical defense and aerospace applications rely on reject conveyors to catch faults undetectable by human inspection.

Choosing the Right PCB Reject Conveyor

Evaluating specific manufacturing requirements

Required throughput, production flow layout, PCB specs, space constraints, and budget guide selection.

Considering production line speed and volume

Belt width, reject speed, mechanical vs pneumatic systems, and controls are selected based on line speed and monthly PCB volume.

Customization options for unique manufacturing needs

Custom conveyor lengths, enclosed models, and specialized mechanical arms can be incorporated as needed.

Budget and ROI considerations

Though customized systems are costlier, the significant long-term savings from quality and yield improvements justify the investment.

Installation and Maintenance

Pre-installation preparations and site evaluation

Available power, clearances, adjacent equipment and adequacy of aisle space are assessed during site evaluation.

Proper conveyor integration with the production line

Experienced technicians ensure optimal integration, belt alignment and synchronization of reject controls.

Routine maintenance to ensure optimal performance

Preventive maintenance schedules cover belt, motor, sensors, pneumatic/mechanical systems and controls.

Troubleshooting common issues and solutions

Jamming faults, misaligned belts, sensor failures and reject mechanism issues are promptly troubleshot by maintenance personnel.

Ensuring Safety and Compliance

Operator safety measures during rejection events

Installing guarding, interlocks, E-stops and warning indicators prevents workplace injuries.

Compliance with industry standards and regulations

Adherence to IPC standards and quality certifications ensures reliability and compliance.

Quality certifications for reliable PCB rejection systems

Third-party certifications like UL and TUV validate performance as per established quality benchmarks.

Specification of CY-330R/445R/460R/530R PCB Reject Conveyor

DescriptionTo filter PCBs after the AOI or SPI
Belt typeAntistatic oblate belt
Conveyor speed0.5-20M/min (support customization)
Power supplyAC 110/220 volts; single phase
PowerMax. 100VA
Storage number of PCB5pcs (support customization)
Storage step distance of PCB20mm (support customization)
Transport height900 +/- 20mm (support customization)
Transport directionL to R/R to L

Dimension of CY-330R/445R/460R/530R PCB Reject Conveyor

(LxWxH, mm)
PCB board size
(LxW, mm)


Recap of the significance of PCB reject conveyors in electronics manufacturing

PCB reject conveyors enable automated, efficient and seamless rejection of defective boards to prevent faulty finished products.

Emphasizing their role in ensuring high-quality products and customer satisfaction

By only allowing flawless boards to proceed, reject conveyors are indispensable for minimizing defects, maximizing quality and achieving customer satisfaction.

Encouraging electronics manufacturers to integrate PCB reject conveyors for efficient and reliable quality control processes

The numerous benefits make integrating reject conveyors critically important for electronics manufacturers to gain a competitive edge through robust quality control, enhanced productivity and reduced overheads.


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We help you avoid the pitfalls to deliver the quality and value your PCBA solutions, on-time and on-budget.