In today's fast-paced business world, efficient inventory and supply management are crucial for smooth operations and customer satisfaction. One effective system that has gained popularity in recent years is Kanban.
Two types of Kanban tools we use:
- Kanban Inventory Management Calculator - scroll down below
- Pull System - see 3rd paragraph below in "What is Kanban"
What is Kanban?
Kanban, which translates to "visual signal," is a visual and pull-based inventory management system that originated from the Toyota Production System in Japan in the 1940s. It uses cards, bins, or other signals to indicate the status and quantity of inventory items in different stages of the production or distribution process.
Imagine a physical board with columns representing different stages of production or tasks. Each task or item is represented by a card, which moves across the board as they progress from one stage to another. The cards can also be strategically placed in an inventory stack, triggering an action. The primary purpose of Kanban is to establish a smooth flow of work and enable teams to manage their inventory and supplies efficiently.
A basic example is having a pallet of 18x12x6 shipping boxes regularly used to ship goods. If the pallet has 500 boxes, you consume 100 per week, it takes one week to replenish the stock, and you want two weeks of supply on hand, you place a visual indicator after the 200th box (approximate placement should be acceptable in most cases). In this example, the warehouse associates get trained to place the visual indicator (a card in most cases) in the floor Supervisor's inbox. The card in the Supervisor's physical inbox becomes a task indicator for the Supervisor to order another pallet for delivery in a week. The card typically has order information indicated on it to prevent time loss in finding the vendor, minimum order quantity (MOQ), cost, and contact information.
If you ask a big group of people to do one thing right manually all the time, you will have inconsistent results. Workflows, processes, and visual indicators are necessary for consistency and predictability versus depending on individuals to understand, interpret, and perform synchronously." - Arsen Janikyan, Founder & CEO of Ops Engine.
The Principles of Kanban
- Visualization
As mentioned earlier, Kanban is all about creating a visual representation of your workflow. This allows everyone involved to clearly understand the tasks at hand, their current status, and potential bottlenecks. - Limiting Work in Progress (WIP)
Kanban emphasizes setting limits on the number of tasks or items simultaneously in progress. This restriction ensures that teams focus on completing existing tasks before starting new ones, reducing multitasking and improving productivity. - Continuous Improvement
Continuous improvement is a core principle of Kanban. Regularly reviewing and refining the workflow helps identify areas for optimization, leading to increased efficiency and reduced waste. - Pull System
Kanban operates on a pull system, meaning work is only pulled when there is capacity to handle it. As a result, inventory levels are kept lean, reducing the risk of overproduction or unnecessary stockpiling.