Understanding the 8 Wastes

Lean Manufacturing: A revolutionary approach that boosts operational efficiency, reduces waste, increases competitiveness and profitability.

Lean Management, Manufacturing Quality Control

Bookmark (0)

Have you ever looked around your workplace and noticed, well, waste everywhere? You might not call it that, but when you see overproduction, excess inventory, and underutilized talent, what you’re seeing are problems that can steal your productivity and profit. Thankfully, there are strategies designed to combat these “8 Wastes”. Getting familiar with these wasteful practices is the first step to a leaner, more efficient operation.

Getting to Know the 8 Wastes

What are the 8 Wastes, you ask? They are overproduction, waiting, over-processing, excess inventory, motion waste, defects, extra-processing, and non-utilized talent. Each one is unique, but they all share one thing in common: they can be a drain on your resources and a barrier to your success.

Overproduction and Its Impact

Let’s start with overproduction. It’s producing more than you need, or producing it sooner than you need it. This problem affects more than just your storage space. It also ties up capital, inflates overhead costs, and makes defects and errors harder to spot.

Ditch the “Just in Case” mindset. A balanced pull-based system can act as a buffer against overproduction. Remember, it’s all about making only what’s needed, when it’s needed.

The Problem with Waiting

Next up is waiting. It could be waiting for parts, information, or approvals, but any idle time is waste. Besides delaying the project, it interrupts workflow and increases lead time.

How can we combat this? Start by setting clear procedures and expectations. Make sure everyone knows their roles, duties, and timelines. Streamline your workflow and cut down that waiting time.

Limiting Extra Processing

On to extra processing, which is adding more value than the customer actually wants. This could be over-engineering a product, including features the customer doesn’t need, or performing tasks that don’t fit into the process flow.

How do you avoid this? Stick to the “voice of the customer”. Solicit feedback, understand their needs, and let it guide your production plan. That way, you make what the customer truly wants, not what you think they might want.

Managing Inventory Excess

Excess inventory can also spell trouble. Goods not immediately needed can become prone to damage, obsolescence, and theft. Moreover, it ties up cash that could be used for other business investments.

Try implementing Just-in-Time (JIT) systems to match production with demand. Keep a close watch on your inventory levels and use analytics to predict future demands.

Ditching Motion Waste

Motion waste involves unnecessary movements by people during the production process. Whether it’s excessive walking, reaching, bending, or lifting, these extra movements can lead to decreased productivity and increase the risk of injuries.

To eliminate this, consider implementing ergonomics and efficient workplace design. Keep the most-used tools and equipment in easy reach. Consider workflow design too to minimize unnecessary movement.

Detecting and Rectifying Defects

Defects, be it in product or process, can be a significant waste. It leads to downtime, rework, scrap, and even cost of warranty claims.

Establishing a robust quality control system is key here. Implement proactive practices, like Poka-Yoke or “mistake proofing” techniques, and consider Six Sigma methodologies to manage and reduce defects.

Curbing Over-Processing

Over-processing, doing more work than required, can waste time, energy, and materials. This could occur when using equipment that’s more precise, complex, or costly than what’s necessary.

Again, listen to the “voice of the customer.” Understand exactly what the customer requires, so you provide value without extraneous effort or costs.

Unleashing Your Talent

Lastly, one commonly overlooked waste is non-utilized talent. When you don’t fully use people’s skills, experience, or knowledge, you miss out on ideas, innovations, and opportunities to improve.

Make sure to offer continuous training and promote a culture where everyone can contribute ideas and feedback. You’ll be amazed at what your team can achieve when you let them shine.

Using Lean Manufacturing to Your Advantage

The principles of Lean Manufacturing can be a game-changer in tackling these wasteful practices. With concepts like Kaizen, or continuous improvement, and 5S (Sort, Set in Order, Shine, Standardize, Sustain), Lean helps streamline operations and minimize waste.

Case Studies to Learn From

Companies worldwide have successfully reduced the 8 wastes. Toyota, through its Toyota Production System (TPS), showed how Lean Manufacturing can drastically minimize these wastes. Another example is Harley-Davidson, who, after adopting JIT and work teams, saw a turnaround from near bankruptcy to profitability.

A Sneak Peek Into Your Action Plan

Good that you’ve understood the 8 wastes now. It’s time for action! Start by observing your operations, spotting instances of waste, and questioning why it occurred in the first place. Consider Lean tools and strategies discussed earlier in the journey to reduce these wastes. Remember, it’s a continuous process, not a one-time event. Let’s hit that road towards a leaner, more efficient operation. It’s totally worth it!

Print Friendly, PDF & Email

startMFG

We provide a transformative roadmap, blending leading manufacturing methods for efficient, sustainable progress in every production step.

Newsletter

Sign up to receive the latest news and trends from our company.

More questions? Get in touch