elimination of wastes

Elimination of wastes

1. Elimination of wastes Presented by: Mutahira Mba c section

2. Contents Waste Elimination of wastes Lean operations Jit Kanban conclusion

3. Waste Anything that does not have value or does not add value. Something customer will not pay for. It can be in the form of inputs, outputs, materials, stock etc. Why do we need to eliminate waste? To increase profits Improve efficiency Reduce time and cost of production Generally to improve the what company is running.

4. Types of wastes Transportation Inventory Motion Waiting Over processing Overproduction defects The 7 wastes are the root of all unprofitable activity and all tools of lean production should be focused on getting rid of these wastes

5. 1.Transportation waste Any material movement from one place to another . Unnecessary material or tool/equipment movement. Causes Poor root planning Distant suppliers Poor layout Poor production planning Elimination Co-location Avoiding unnecessary steps in between process

6. 2.Inventory waste Waste that consists of excess inventory above which is needed. Excessive raw material inventories and supplies. Causes Poor demand forecasting Incapable processes Poor inventory planning and tracking Elimination Do not store extra materials Follow FIFO

7. 3.Motion Any movement of people which does not contribute to the value of the product. Causes Poor layout and housekeeping Disorganized workplace Unclear and non standardized workplace instructions Unclear process and material flow Elimination Store tools for immediate use and closer to workplace Deliver items to internal customers as when they want them.

8. 4.Waiting Man/machine idle or waiting time When a worker cannot proceed with the next task in a process . Causes Lack of synchronization Over staffing Long set-up Material/manpower shortage or delay Elimination Proper availability of materials and manpower Well organized process

9. 5.Overprocessing Non-value added man and machine processing Causes Unclear customer specifications Unclear work instructions Lack of a concurrent design Lack of customer input related to requirements Elimination Identify value adding and non value adding activities

10. 6.Overproduction Producing more than what is needed. Producing faster than what is needed. Causes High capacity equipment Building products that are not a priority Poor production planning and producing just in case Elimination Just in time Limited production as per customer demand

11. 7.Defects Cost due to storing, repairing/ repaired products . Includes cost of materials scrapped due to defects. Causes Unskilled personnel Unclear customer specifications Incapable suppliers Lack of process control Elimination Improve the quality of raw material Skilled personnel.

12. Lean operations Derived from Toyotas 1930 operating model “ The Toyota Way ”. Term lean was coined by John Krafcik in 1988 and defined by James Womack and Daniel Jones in 1996. Focusses on providing customer satisfaction using few resources. Objective: Creating value for customers Eliminating wastes.

13. Lean principles:

14. Jit Jit – just in time Manufacturing and production of goods when needed. Usually small batches. Waste is less Goals: Eliminate disruptions Increase efficiency and decrease waste by on time production No excess inventory Example: Car manufacturers

15. KANBAN

16. When constructed, managed and functioning properly, serves as areal time information. Principles: Start with what you know Agree to pursue incremental, evolutionary changes Respect the current process roles and responsibilities Encourage acts of leadership at all levels.

17. CONCLUSION Waste is anything that does not add value or does not have value so it is needed to be eliminated. There are 7 types of wastes. These lead to inefficiency of production system and increases cost and labor. Lean operations has two main objectives: creating value for customers and eliminating wastes. Just in time is used to increase efficiency and decrease wastes by producing on time and demand. KANBAN allows to see the work in progress and identifies when and where workflow blockages happen

18. Thank you