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Facility layout

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Facility layout ppt
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Facility layout

  1. 1. Facility layout
  2. 2. Introduction  As a part of such decisions, it becomes important to decide where to place machinery, where to locate the stores, heat chambers, tool rooms, toilet, canteen and other equipments.  The flow of production depends upon how well these facilities have been placed or arranged in the plant or factory.
  3. 3.  In a properly or well designed plant, the material move in forward direction from raw material stage to the completion of finished product.  The material and other resources do not move in backward or zig zag direction because this would make the production process longer and costly.  Layout differs from firm to firm and industry to Industry, changes take place in the product design, volume of production, production method which also requirs change in plant layout.
  4. 4.  A plant layout is appropriate arrangement of machinery, equipment and other industrial facilities such as receiving and shipping department, tool rooms, maintains room etc..  The main purpose of plant layout is to achieve fastest and smoothest production at minimum cost.  So plant layout is a floor plan which to decide and organise the machinery and equipment, whether established or anticipated, at the best possible place in a way that aids the smoothest flow of material, at the least cost and with a very little amount of handling in processing the product from the raw material to the finished product
  5. 5. Definitions  Knowles and Thomson says that a plant layout involves  Planning and arranging manufacturing machinery, equipment and services for the first time in completely new plants;  The improvement in layouts already in use in order to introduce new methods and improvements in manufacturing procedure
  6. 6.  Plant layout is the arrangement of machinery, work areas and service areas within a factory. - G.R.Terry  Plant layout involves the development of physical relationship among building, equipment and production operations which will enable the manufacturing process to be carried out efficiency. -M.E.Hurley
  7. 7. Factors affecting plant layout  Factors affecting plant layout are as follows 1. Type of labor 2. Location 3. Type of machinery 4. Type of production 5. Possibility of future expansion 6. Maintenance 7. Safety 8. Types of industry 9. Managerial policies
  8. 8. Objectives of an ideal plant layout  Provide enough capacity by providing for flexibility of volume and product  Maximum utilization of floor area  Maximum reduction of internal transport from one operation to the next and reducing material handling cost  Appropriate lighting and ventilating areas  Lowering cost of scrap and waste
  9. 9.  Minimizing possibility of accident  Minimizing production delays  Providing space for future expansion  Ensuring safety of personal and equipment  Avoiding unnecessary change  Saving cost  Providing easy for supervision  Neatness  Providing proper production control  Eliminating waste efforts for spending up production  Increase employee moral
  10. 10. Types of plant layout  Types of plant layout are different- different types and they are as follows.. 1. Production layout / straight line layout 2. Process layout / functional layout 3. Static layout / fixed position layout 4. Cellular layout 5. Combined layout / hybrid layout 6. Service facility layout
  11. 11. Product layout / straight line layout  This layout requires machines to be arranged in sequence as needed by the particular product. All machines that is required needed to arrange in order. This known as a production line layout. In this arrangement the product goes through all the machines in the sequence for its manufacture. Production of motor car is the best example for this layout.
  12. 12.  In contrast to process layout, the production is given primary important im relation to the process. In industries with few items of production which require a continuous flow of production for production this is the most suitable layout.  The arrangement of machine in this layout doesn’t require frequant changes.  Materials are fed into the first machine and finished goods travel from one to another machine. In this process there are many lines of machines and hence they are special purpose machine. The machine are arranged either in U,L,Z,S,O,V,C or such other forms. It is advantageous for mass scale production of standardized goods
  13. 13. Advantages of product layout  Material handling cost is reduced because of straight line production flow  In it effective production planning and control in product layout as compared to process layout.  Due to shorter and fast movement of materials the operating cycle is much shorter.  Bottlenecks and idle capacity are removed due to line balancing.  Quality control can be done effectively as it doesn’t regular change in the set up of machine.  Relatively easy to control  Less floor space is required per unit of production
  14. 14. Disadvantages of product layout  Highly inflexible system since production flow is regulated through the straight line sequence and fixed rated capacity.  Can not avail benefit of specialized supervision.  The entire production flow can be interrupted by the failure of single machine in the line.  It is difficult to implement the individual incentive scheme as entire production is the result of the joint efforts of all operations in the line.  Investment made in the duplication of machine and equipments at times results in idle capacity
  15. 15. Process layout / functional layout  This layout is also known as functional layout. In it all machines performing similar type of operations are grouped at one location. So in the engineering area all lathes, milling machine etc will placed together.  All foreign machines are placed in one area and all lathes in another  The machine groups are generally arranged in sequential form. This arrangement done on the basis of labor operations.  The product take second place and is moved to the machine which are kept at particular point
  16. 16.  Operations vary from product to product in such a layout and so it is more beneficial to arrange the machines on the basis of process rather than on the basis of products  In every department a partly finished good would be waiting for operation or for further processing. The machine are general purpose machines.  This type of layout is more suitable for intermittent production system or job order type of production
  17. 17. Advantages of process layout  It facilitates more flexible in production then a line layout because different product can be made without the changes in the arrangement of machine.  It is possible to have specialization in supervision.  It is possible to develop individual incentive scheme.  It eliminates the duplication of machine and facilitates the most favorable use of installed capacity.  There is reduced investment in machine since they are general purpose machine.  There is scope for expansion as the capacity of different production lines can be increased
  18. 18. Disadvantages of process layout  Due to long routine and back tracking between the process the cost of material handling increase  The group incentive scheme is possible to implement on the basis of quantity of the products manufacturing.  More number of supervisors are required at each process unit due to which the cost of supervision increase.  This layout needs more floor space to ensure storage every where.  It is very difficult to maintain line balancing in production. Hence, waiting and idle time increasing
  19. 19. Static layout / fixed position layout  In this layout movement of men, machine and materials is necessary. Static layout also called fixed layout refers to the movement of men and machine to the product which us stationary. Where the product is huge the layout will be static.  For example, aircraft, ship building, manufacturing of dams, bridges, buildings etc.  In this type of layout materials and other major components remain in fixed location but tools, men, machines are brought to the location.  The cost of moving men and machine would be less than cost of moving the product because the product is bulky.
  20. 20. Advantages of static layout / fixed position layout  This layout is simple and easy to understand  The laborers in this type of layout can be fully utilized.  Frequent adjustment can be made  Material handling is less  Men and machine are used for a variety of operations producing different products.  Cost of transportation bulky product is avoided.  Worker take pride when the work is complete
  21. 21. Disadvantages of static layout / fixed position layout  Heavy machines, equipments and tools take time to reach the work place.  It is heavy expensive since highly skilled worker are needed.  This kind of layout is suitable only for special types of project and producing small quantity of items
  22. 22. Cellular layout  This layout is an attempt to bring some benefits of a line layout in circumstances where a pure line layout is not practicable. In thus layout machines are placed in groups that make a family of parts which requires the same treatment in each cell.  It offers more control than a static process layout and is more flexible than a line layout  Flexible manufacturing system was first installed in 1968 in England
  23. 23.  Since customization is the call of the day there is an attempt made to bring in an element of flexible into the manufacturing system with regards to the batch size variations and the differing operations sequence  It is a manufacturing system in which there is some amount of flexibility that allows the system to respond in the case of change, whether predicted or unpredicted.
  24. 24. Advantages of cellular layout  In this type if layout the work can be done with lot of speed  Specialization can be used for the work in this type of layout  Production cost decrease and delivery time shortens.  Reduced material handling cost  Quick set up  Low stock of inventories needed
  25. 25. Disadvantages of cellular layout  Capital requirement is needed in this type of layout because of duplication of an equipment  In cellular type of layout the cost is increase  More space needed  There are chance of idle capacity in cellular layout
  26. 26. Combined layout / hybrid layout  It is difficult to find process or pure layout in practic. They are both manually exclusive. A good compromise from which it is possible to benefit from both the layout is possible to some extent.  So efforts must be made to have the combined layout which including advantages of the process and product layout
  27. 27.  A combined layout is developed to expand the production with a vision to tap the idle capacity of the product layout  Generally combined layout developed where,  Product layout is used for main product  Process layout used for by products or joint products  E.g in soap manufacturing unit manufacturing soap is arranged on line layout whereas manufacturing glycerine is on functional layout
  28. 28. Advantages and disadvantages of combined layout / hybrid layout  Advantages  Optimum utilization of resources can be done in this layout  Disadvantages  Combined layout is time consuming  More investment is needed in this layout  More space is utilized in it
  29. 29. Service facility layout  The major difference between service facility and manufacturing facility layout is that a variety of service facilities exist to forge link between customers and service  Some of the requirement of service facility layouts are well organized and adequately lighted parking area as well as designed walkways to and from parking area.
  30. 30.  Customer contract two extremely different type of layout. One is that type of layout that is totally designed around the customer receiving service function and the other is the one that is designed around technology, processing of physical materials and product efficiency. hospitals are the best example for service facility layout that focus more on technology or physical materials processing and production efficiency while banks are good example of layout designed around customers.  There are other facilities that strike balance between these extremes and a restaurant is a good example where attention is directed both at customer receiving and servicing as well as on processing and preparation of food
  31. 31. Principles of an ideal layout  Principle of maximum flexibility  Principle of maximum co-ordinations  Principle of maximum visibility  Principle of maximum accessibility  Maximum use of space  Principle of maximum safety and satisfaction  Principle of minimum travel  Principle of minimum investment  Minimum handling  Minimum discomfort  Principle of sequence
  32. 32. Characteristics of a good layout 1. Sufficient space 2. Satisfactory safety and security to worker 3. Minimum material handling 4. Suitable storage facility 5. Simple supervision 6. flexibility

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