The detection and avoidance of wastes can be used in all areas of daily work-saving potential realized.

The meaning of lean production management will be in power, support services and blind benefits.

The power of this terminology is understood as value added. This includes all operational activities and services, the value of a product feed.
On the other hand is the power to support the necessary framework conditions for the provision and maintenance of real value-added processes within the company. Without support services can not provide power. Because of the scale is the need for continuous power to question.
Blind services are all non-value-adding activities to a product will not add value. The sum of all blind services is known as wasting.
The idea that you basically value-added activities and waste may differ, comes from the Japanese (Muda is the Japanese name of wastage).

“Waste is everything except the minimum of effort and expense for equipment, materials, parts, space and labor that the value of a product is essential” (quote from Fujio Cho, Toyota).

Waste as a cause of loss
The waste itself is the most obvious cause for the emergence of losses in the production process. The detection and avoidance of wastes can be used in all areas of daily work-saving potential realized. Regardless of what department it is wasteful, cost an “excess” money first, time, space and energy and also blocked the flow of processes.

Basically, there are the seven types of waste differ in the daily operations may occur:

In the case of over-production (Overproduction) are finished for the moment have no use, and the inventory costs in the amount of driving.
Among the stocks (inventory) includes not only finished goods stocks but also stocks in particular between the process steps through own production or by suppliers. Ultimately, also causes each skeleton to be processed in a production run is ready, capital commitment costs and affected the substantial extent, the earnings situation in the company.
Between the individual process steps, or during an ongoing process, unnecessary waiting (Waiting) as far as to prohibit. Setup times are not a necessity to understand, but are by special procedures is reduced.
Unnecessary transportation and material flows (material movement) between the successive steps are also to be avoided. While it is the internal transport - to support performance counts - not completely avoided. Non-optimized search and Holvorgänge but for sure wasted, because the production process being drawn out.
In the context of processing (processing) result in false work, where the sequence of individual steps do not work best is to waste.
For too long Grief and running paths - Movements (Motion) - extend the work and also lead to extra costs and thus wasted.
Committee and rework - corrections (Correction) - are indicators that within the production process errors on the product and are therefore likely to further costs for the company will incur.
It is therefore one of the main tasks of controlling production, the efficient use of resources in terms of material, personnel and capital to be continuously optimized. The potential to reduce unit costs, improve productivity and to increase the capacity of the stock plants are every day to identify them. This is mainly a question of the production systems in the building so that wastage is avoided if possible.

One way to uncover waste and hidden reserve capacity to develop, is to use the code “Overall Equipment Efficiency”. The OEE is a key indicator for calculating and analyzing the productivity of a manufacturing plant. It measures the ability of a system whose full theoretical potential for the production, within the scheduled time for manufacturing products, where appropriate.

One way to uncover waste and hidden reserve capacity to develop is the use of the indicator Overall Equipment Efficiency - OEE.

It is one of the main tasks of controlling production, the efficient use of resources in terms of material, personnel and capital to be continuously optimized. This means that all the potential to reduce unit costs, improve productivity and increase the capacity utilization of facilities in order to identify any kind of wastage should be avoided.

The indicator Overall Equipment Efficiency - OEE
The Overall Equipment Efficiency is a key indicator for calculating and analyzing the productivity of a manufacturing plant. The Overall Equipment Efficiency measures the ability of a system whose full theoretical potential to produce in the allotted time to produce products.

This is not solely a question of the actual utilization of a machine or plant in relation to its theoretically possible to set, but rather the identification of other factors, on the efficient deployment of a production machine work.

For optimal interpretation of the available capacity, it is primarily in the process industry, the OEE’s the individual process steps to an overall OEE the full production system should be aggregated.

Calculation of Overall Equipment Efficiency
The Overall Equipment Efficiency is derived from the product of equipment availability, performance rate and the quality of the produced quantity.

OEE = availability x performance x quality grade loss
with

Plant availability = (net operating time / planned time) x 100 (%)

Power level = ((actual output x cycle time) / net operating time) x 100 (%)

Quality Rate = (actual yield / potential yield without error) x 100 (%)

Thus, with a downtime of 30 percent in conjunction with a 80-percent plant utilization and a yield in the amount of 90 percent Overall Equipment Efficiency equal to 50 percent.

In not a few manufacturing plants, the OEE in less than 60 percent. This results, for example, the fact that when bottleneck machines quickly goes through additional investment to build additional capacity. A premature increase in capacity but the capital is deteriorating profitability in the company, since additional capital will be committed. In most cases, avoid hasty investment when knowledge of the hidden reserve capacity in the production has.

Strengths and weaknesses of the Overall Equipment Efficiency
The OEE Management is a holistic and durable scale optimization task by all direct and indirect manufacturing areas along the entire chain into account.

The Overall Equipment Efficiency is a useful indicator for monitoring the performance of individual plants or by aggregating the entire production unit. The strength of the OEE In particular, any investment losses systematically identify and analyze this in a concerted action plan to correct them.

For the practical implementation of the OEE mangement is to consider that the Overall Equipment Efficiency as a key figure is still relatively unknown and the manual Störgründen down from a high level of care and diligence required to ensure that the database is consistent personal finance software . Use of IT-based PDA systems can provide the necessary information but usually directly from the machine in a ready made software for this process. This saves resources both for the employee at the machine, as well as for the controller.