Andon: A Lean System in Manufacturing

Andon System: How Does It Work?

Previously, production personnel left their posts to look for solutions, but with Andon, the solution is brought directly to the working area. It is a system that has been tried and tested to streamline workflows. Generally, Andon works through an interconnected network of three primary components: cord, light, and board. Listed below are what they mean and how they function:

1. Andon Cord

The Andon cord, cable, or rope is usually located at the overhead of assembly line workers. When pulled, it means that a production operator requires support because a problem has been identified. In some settings, the cord manifests as a button or switch. Whatever the case, its purpose remains the same in alarming others of an issue that has been spotted.

2. Andon Light

The act of pulling the cord or pressing the button also triggers the Andon light of that specific equipment or production line. The change in color helps responders quickly determine the area that needs their assistance. While other types may have additional colors such as blue and white, a simple light system displays three main colors: green, yellow or amber, and red.

• Green means production is normal or running smoothly, so continue with work as usual.
• Yellow or Amber means a problem has been identified, so respond to the signal and help the operator fix the problem or perform product quality checks.
• Red means production has been stopped, so investigate with the team leader or refer the problem to managers and fix it before continuing production.

3. Andon Board

Each with their appropriate color codes, the status of production lines automatically gets updated on the Andon board. It is a single source of truth for current manufacturing conditions. At a glance, supervisors and factory workers can view production targets, actual numbers, and total downtime, if any, fostering a culture of transparency and accountability.

Andon Example: Toyota

Seeing Andon in action can help demonstrate exactly how the system works. When it comes to putting the principle into practice Toyota is well-known for taking the lead. Here is a real-life example of Andon in the workplace:

In Toyota, Andon functions as an alert system that can lead to a line stop. By using the cord which typically comes with an alarm sound, the Andon board lights up and team leaders get notified about an issue in a specific production line. If it cannot be resolved within a certain amount of time, then the line stops. Every Toyota employee can stop the manufacturing line if they perceive something as a threat to vehicle quality.

Benefits of Andon in Lean Manufacturing

As a visual control system applied in lean manufacturing, Andon can increase production levels by taking the time to look into problems and making the effort to fix them before they escalate. By sustaining its principles in daily operations, manufacturers can gain these significant benefits:

• Empower frontline workers through an environment of openness and trust.
• Accelerate teamwork by democratizing the ability to make decisions in production.
• Maximize raw materials and reduce the manufacture of defective items.
• Standardize product quality before it moves further down the line.
• Improve customer satisfaction and enhance value to end users.

How SafetyCultureCan Support Your Andon System

Taking inspiration from traditional paper lanterns, Andon has evolved into an innovation not only for industrial use but also for commercial use. Today’s technology has played a vital role in making it easier for businesses to strengthen and scale the system. SafetyCulture (formerly iAuditor) is an operations management platform that can help teams respond to issues faster and work better together. Here’s how SafetyCulture can support Andon implementation:

Issues Reporting, Management, and Documentation

Boost employee reporting through the SafetyCulture Issues feature. With the mobile app, capture key information as soon as problems arise, so your team can handle them before they spiral out of control. Using the web app, manage issues with ease as you can view their status and updates from a user-friendly dashboard. Managers can ensure that all issues identified through Andon are properly documented and accounted for.

Assigning, Monitoring, and Record-keeping of Corrective Actions

Promote a culture of collaboration through the SafetyCulture Actions feature. Displayed in a timeline that looks like a conversation, teams can chat and attach photos to assigned actions with priority levels and due dates. Opening SafetyCulture on your desktop or laptop enables you to access all corrective actions in easy-to-understand charts to help track areas of improvement and keep compliance records. You can add up to 10 team members using your free SafetyCulture account.

Frequently Asked Questions

Understanding the basic elements of Andon allows companies to take practical steps toward applying a lean approach in manufacturing. Some essential details involve its history and development, purpose, and implementation. Here are our answers to 5 of the most commonly asked questions about Andon:

Free Tools to Help Implement Andon