The Challenge: Overcoming Motion Control Issues in High-Demand Applications
Client: Leading semiconductor manufacturer
Application: Automated Optical Inspection (AOI) Systems
In semiconductor manufacturing, precision is crucial. A manufacturer faced motion control issues in their AOI systems due to step loss in open-loop stepper motors. The impact included:
- Misalignment during inspections
- Slower production speeds
- Increased downtime and rework
With increasing production speeds, they needed a reliable, cost-effective solution without a full system overhaul.
The Solution: Closed-Loop Stepper Motor System
They selected SANMOTION PB, SANYO DENKI’s closed-loop stepper motor, which offers:
- Step Loss Elimination – Real-time closed loop feedback for precise positioning without step loss even under varying loads.
- High Torque at High Speeds – Consistent torque even at full speeds for faster automated inspection.
- Cost-Effective Upgrade – Improved efficiency without the need to replace the entire system with a more complex servo motor solution.
- Seamless EtherCAT Integration – Smooth communication with existing factory automation systems for real-time monitoring, easy maintenance and remote adjustments.
The Results: Faster, Smoother, More Reliable Production
After switching to SANMOTION PB, the manufacturer achieved:
- 20% faster inspection speeds, increasing throughput
- Eliminated step loss, ensuring flawless inspections
- Improved automation integration, enhancing reliability increasing throughput
- Lower energy consumption, creating a more stable production environment
For simpler tasks, SANMOTION F2 open-loop stepper motors remain a great option, but for high-precision needs, SANMOTION PB offers superior control, efficiency, and reliability.
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