What are the 7 types of waste?
7 Wastes of Lean ManufacturingThe seven wastes of Lean Manufacturing are what we are aiming to remove from our processes by removing the causes of Mura and Muri as well as tackling Muda directly. But what exactly are the seven wastes of Lean Manufacturing (or 7 Mudas)? Show
For a more in depth discussion of each waste including causes, examples, and potential solutions click the links within each description. Remove Wastes to Reduce Costs How to Remember the 7 WastesThere are a couple of Simple Mnemonics that you can use to help you remember the 7 Wastes. The first is to ask your self “Who is TIM WOOD?” TIMWOOD
TimWood comes from Standard-Cooper in the UK where I first started my career as a young Quality Engineer in the Automotive Industry. It is now probably the most recognized way of remembering the seven wastes. An alternative is WORMPIT;
Using either TIMWOOD or WORMPIT will help you to remember your seven wastes, very useful if you are training others and have to list them out on a board. What Exactly is Waste?The simplest way to describe waste is as “Something that adds no Value.” Our customers would not be happy to pay for any action that we take that does not add value to what they actually want and nor should we be. Would you be happy if you received a bill in a restaurant that included a meal that was prepared in error? No; you would argue and demand that it was removed from your bill; yet if you buy a product in a store the price that you pay will contain costs that you would not want to pay. Would you want to pay for the machine operators wages whilst they sat idle waiting for a delivery, or for the rework processes that had to be undertaken because the machine was incorrectly set, or even for storing your product for three months before it was delivered to the store? These wastes are included within the cost of your products, either inflating the price you pay or reducing the profit of the company. Why Remove Waste?Your companies Profit is your selling price less your costs, no matter how you think about the selling price it is very much dictated by the market not by yourself. If you charge too much then your customers will go elsewhere, even if you charge too little you may lose customers as they will perceive there may be something wrong with what you are offering. Therefore the only way you have to improve your profits are to reduce your costs; this means removing all elements of waste from your processes. In addition to improving your profits you will find that waste has a major impact on your customer’s satisfaction with your products and services. Your customers want on time delivery, perfect quality and at the right price. Something that you cannot achieve if you allow the 7 wastes to persist within your processes. The Waste of TransportTransportation is a waste and costs you money. Transport is the movement of materials from one location to another, this is a waste as it adds zero value to the product. Why would your customer (or you for that matter) want to pay for an operation that adds no value? The Waste of InventoryInventory Hides Problems Inventory costs you money, every piece of product tied up in raw material, work in progress
or finished goods has a cost and until it is actually sold that cost is yours. In addition to the pure cost of your inventory it adds many other costs; inventory feeds many other wastes. The Waste of MotionExcessive motion of either people or a machine is a waste. Unnecessary motions are those movements of man or machine which are
not as small or as easy to achieve as possible, by this I mean bending down to retrieve heavy objects at floor level when they could be fed at waist level to reduce stress and time to retrieve. Excessive travel between work stations, excessive machine movements from start point to work start point are all examples of the
waste of Motion. The Waste of WaitingEliminate the waste of waiting to make your processes smoother How often do you spend time waiting for an answer from another
department in your organization, or waiting for a delivery from a supplier or an engineer to come and fix a machine? We tend to spend an enormous amount of time waiting for things in our working lives (and personal lives too), this is an obvious waste. The waste of OverproductionOver producing what the customer does not want now is a waste The most serious of all of the seven wastes; the
waste of overproduction is making too much or too early. This is usually because of working with oversize batches, long lead times, poor supplier relations and a host of other reasons. Overproduction leads to high levels of inventory which mask many of the problems within your
organization. The Waste of Over-processingDoing More than the customer wants costs you money The
waste of Overprocessing is where we use inappropriate techniques, oversize equipment, working to tolerances that are too tight, perform processes that are not required by the customer and so forth. All of these things cost us time and money. The Waste of DefectsDefects hide many other problems and wastes The most obvious of the seven wastes, although not always the easiest to
detect before they reach your customers. Quality errors that cause defects invariably cost you far more than you expect. Every defective item requires rework or replacement, it wastes resources and materials, it creates paperwork, it can lead to lost customers. Additional wastesWaste of Talent; failing to make use of the people within your organization. This is an issue that
many of our companies in the West fail to address. We still tend to operate within a command and control environment and take little real notice of what our employees really think and what they can contribute. Your employees are your greatest asset by far and can help you to drive out many of the other wastes. Eliminating the Seven WastesEliminating the seven wastes is something that can be done through the implementation of Lean and the various lean tools, however the focus of your implementation should not be to identify and remove waste. Instead you should use the principles of lean manufacturing to identify value according to the customer and make those value adding processes flow through your organization at the pull of the customer. This approach helps you to make your value adding processes more efficient and causes the waste to literally “dissolve.” Approaching lean from a perspective of removing the 7 wastes rather than making value flow however usually ends up with us making non-value adding processes more efficient and we get better and better at doing things that the customer does not want. To eliminate the 7 wastes of lean we have to focus on the lean principles and value as perceived by our customers. What are the 8 types of waste?The 8 wastes. Overproduction. Producing more or sooner than needed. ... . Waiting. Idle workers or machines. ... . Inefficient operations. Operations that aren't efficient or necessary and don't add value for the customer. ... . Transport. Excess movement of materials, products or information. ... . Inventory. ... . Motion. ... . Poor quality. ... . Misused resources.. WHO identified 7 types of waste?The original seven wastes (Muda) was developed by Taiichi Ohno, the Chief Engineer at Toyota, as part of the Toyota Production System (TPS). The seven wastes are Transportation, Inventory, Motion, Waiting, Overproduction, Overprocessing and Defects. They are often referred to by the acronym 'TIMWOOD'.
What are the 7 wastes in Six Sigma?According to Lean Six Sigma, the 7 Wastes are Inventory, Motion, Over-Processing, Overproduction, Waiting, Transport, and Defects. We'll use the bakery example to demonstrate these wastes in practice. Inventory – Pies, cakes, doughnuts, cupcakes, cookies – so much variety and so many of each product.
What are the 7 wastes that we should all be working to eliminate?The 7 wastes of lean manufacturing are defects, inventory, processing, waiting, motion, transportation, and overproduction.
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