How We Implement Lean Manufacturing in a Toilet Seat Company

At COMSAN, implementing Lean Manufacturing has been a game-changer. It has helped us streamline operations, improve product quality, and enhance customer satisfaction—all while maximizing efficiency and minimizing waste.

Raul Castro

Responsable de Producción y Mejora Continua

Lean Manufacturing is a production philosophy that originated in post–World War II Japan, spearheaded by Toyota. Its core objective is to improve efficiency by eliminating activities that don’t add value to the production process—activities that often result in unnecessary costs, delays, and effort. Lean focuses on using fewer resources to deliver what truly matters: value for the customer. Common types of waste identified in Lean include:

Overproduction
Waiting time
Unnecessary transportation
Overprocessing
Excess inventory
Unnecessary movement
Product defects
Underutilized talent

By identifying and eliminating these forms of waste, companies can become faster, more flexible, and more cost-effective.

Introducing CBS: The Comsan Business System

In 2020, we launched CBS (Comsan Business System)—our very own management model inspired by Lean Manufacturing. CBS is built on three guiding principles:

Superior service to our customers
A competitive cost structure
A culture of continuous improvement

CBS promotes continuous improvement through small, incremental actions, standardization of processes, discipline in execution, and a constant focus on performance metrics to identify new areas for enhancement. It encourages collaboration across all teams, fostering a company-wide commitment to excellence.

CBS means thinking and working collaboratively across all areas of the company.

Lean Tools That Drive Our Transformation

We’ve embedded several Lean tools into our daily operations. These are more than just techniques—they’re part of our company culture:

5S Methodology

We apply 5S (Sort, Set in Order, Shine, Standardize, Sustain) to keep our workspaces clean, organized, and efficient. This approach reduces search time, minimizes errors, and improves safety and productivity.

The 8 Wastes

We actively identify and eliminate the eight types of waste, ensuring that every activity in our process adds real value for the customer.

Kaizen (Continuous Improvement)

Kaizen is at the heart of our improvement efforts. We empower our employees to make small, consistent changes that collectively lead to significant long-term gains. Everyone participates in making our processes smarter every day.

Kanban (Visual Workflow Management)

Kanban systems help us manage the flow of materials and tasks visually and intuitively, ensuring that production aligns precisely with customer demand. This reduces inventory levels, prevents bottlenecks, and improves planning.

Poka-Yoke (Error-Proofing)

To ensure flawless assembly, we developed our proprietary CID® (Comsan Integrated Damper) system. Based on the poka-yoke principle, CID® ensures that components can only be assembled in the correct position, eliminating the risk of errors during production and use.

The Benefits of Lean Manufacturing at COMSAN

By embracing Lean Manufacturing and CBS, we’ve achieved measurable benefits:

Less waste: We eliminate non-value-adding activities, improving efficiency and cutting costs.
Higher productivity: Optimized workflows allow us to get more done with less effort.
Improved product quality: Standardization and ongoing process control reduce errors and defects.
Lower operating costs: Lean processes require fewer resources, reducing overhead.
Faster lead times: Simplified workflows enable us to deliver faster and respond quickly to market demands.
Greater customer satisfaction: Reliable quality and on-time delivery build trust and loyalty.
Engaged employees: Our team takes ownership of improvement, contributing ideas and driving results.
Smarter use of space: Lean layouts enhance flow and minimize movement, making operations more efficient.

Through CBS and the principles of Lean Manufacturing, we’re not just optimizing processes—we’re building a stronger, more agile company. Our goal is to manufacture high-quality toilet seats while using the fewest possible resources, reducing environmental impact, and delivering superior value to our customers.