How Boards on Fire Can Support One Piece Flow

If you work in the manufacturing industry, you know how quickly conditions can change. Requirements evolve, demand increases, and the pace accelerates. To keep up, it’s rarely enough to simply refine existing ways of working, often a more fundamental rethink of how production is organized is needed. One such change is the shift from traditional batch production to single-piece flow, also known as one-piece flow.

What is One-Piece Flow?

One-piece flow means that each product moves continuously through production without waiting between steps.
A practical example is assembly. Instead of producing large batches in one stage and then moving them forward, each product follows the entire process from start to finish. This allows problems to be identified and addressed immediately, creating a smoother flow, shorter lead times, and less waste.

The result is a production process that better meets customer demands for quality and efficiency.

Benefits of One-Piece Flow

• Reduces waste
• Improves quality
• Shortens production lead times
• Makes it easier to quickly respond to customer needs

The Difference Between One-Piece Flow and Batch Production

One-piece flow is a highly valued Lean method, not least because of its ability to deliver precision and efficiency in production. At the same time, it is not always the most obvious way of working. In traditional production, work is often carried out in batches, where many units are completed in one stage before being moved to the next.
While this can sometimes be efficient, it often results in products waiting between steps. This leads to higher inventory levels, longer lead times, and quality issues being discovered too late.

As illustrated, batch production differs from one-piece flow in how the process is organized. In a one-piece flow, each product moves continuously through the process without unnecessary stops between steps, creating better conditions for a smooth flow and a more flexible production system.

When Does One-Piece Flow Work Best?

One-piece flow is most effective when work can move smoothly and continuously throughout the entire process. To achieve this, several key conditions need to be in place:

• Standardized processes: The method works best when products go through similar production steps.
• Stable demand: Consistent demand makes it possible to create a balanced and predictable flow.
• Low product variation: Less variation reduces the need for changeovers and simplifies operations.
• Reliable equipment: Since the flow is continuous, disruptions can impact the entire production process.

This way of working is particularly common in areas such as assembly lines, electronics manufacturing, food packaging, and other types of light manufacturing.

Challenges with One-Piece Flow

As with many ways of working, one-piece flow can present certain challenges, especially when transitioning from a traditional batch production system.

1. Equipment-related limitations
   Some production equipment is designed to handle multiple units at once, such as in chemical processing or when using large-scale ovens. These systems often rely on volume to operate efficiently, which makes it challenging to shift to a flow where only one product is handled at a time.
   
   
2. Impact of changeover times
   When it takes a long time to switch machines between different tasks, single-piece production can become less efficient. However, by applying methods such as SMED (Single-Minute Exchange of Dies), changeover times can be reduced, creating better conditions for a more continuous flow.
   
   
3. Factory layout constraints
   Many factories are organized by function, where processes like machining, assembly, and inspection take place in separate areas. This type of layout often requires products to be transported between multiple stations, which is better suited to batch production.

Succeeding with the Transition to One-Piece Flow

During major changes, communication is often a key challenge. When information is unclear or insufficient, it can create uncertainty within the organization. Without a clear vision, guidance, and support, the risk of frustration and confusion increases.

To successfully implement the change, it is crucial to clearly communicate the purpose and direction early on, and to provide employees with the right conditions through continuous communication, training, and day-to-day support.

How Boards on Fire Can Support One-Piece Flow

If your goal is to improve efficiency, one-piece flow may be a strong fit. It contributes to higher quality, shorter lead times, and a production system that is closely aligned with customer needs. At the same time, like many other methods, it requires clear follow-up and good visibility. This is where digital tools can play a crucial role.

Boards on Fire’s digital tools for daily management provide a clear overview of your production, its performance, and how you can work more systematically with improvements. They make it easier for employees and teams to access real-time data in their daily work, increasing transparency, strengthening productivity, and boosting engagement.

Interested in knowing more about Boards on Fire? Book a demo today!

Additional Lean Tools That Support One-Piece Flow

To make one-piece flow work in practice, the right conditions need to be in place. Production must be supported by methods that ensure the flow does not stop, become uneven, or create disruptions. Several Lean tools can play an important role here—areas where Boards on Fire can also provide support in daily operations:

1. Kanban systems
   Kanban is used to control when materials should be moved between different stages of production. Together with Just-in-Time (JIT), it ensures a smooth and steady workflow while preventing overproduction.
   
   
2. Value Stream Mapping (VSM)
   VSM provides a clear overview of the entire production flow. It makes it easier to identify waste, bottlenecks, and other issues that disrupt a smooth and efficient process.
   
   
3. Standardized work
   By working in a standardized way, tasks are performed consistently each time, in an efficient and predictable manner. This reduces variation and helps create a stable and balanced production flow.

Learn more about how our Customers benefits from Boards on Fire!