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Unformatted text preview: Material handling accounts for; • 25% of all employees • 55% of all factory space • 87% of production time 15 to 70% of the total cost of a manufactured product • There is typically more than one “best” solution to a material handling system design problem. • An ideal goal is to totally eliminate material handling activities. A more practical goal is simply to reduce material handling as much as feasible to minimize total manufacturing costs . • Material handling is one of the first places to look for operational efficiency and quality improvements. • I t is estimated that between 3 and 5 % of all material handling becomes damaged. • Right amount – refers to the problem of how much inventory is needed. • Just-in-Time vs. just in case inventory management. • Issue quantity vs. stocking quantity. • Stocking in active picking areas, reserve, and safety stock. • Right material – refers to picking the right material in the right quantity. • Automatic identification system is key to accurate identification • Simplify the part numbering system • Reduce the number of part numbers • Right condition – refers to the state of the material the customer wishes to receive the material. • The absence of damage • Right sequence – refers to gaining efficiency by picking materials in the best order possible. • Minimize the variety of materials required • Change assembly criterion • Right Orientation – positioning the material for ease of handling. • Regaining or retaining orientation • Changing the design • Right Place – both transportation and storage. • Central storage vs. distributed storage • Desirable to directly transport materials to the point of use. • Right time – means on-time delivery, neither early nor tardy. • Sufficient capacity inherent in the system to respond • Cycle time reductions • The emphasis is on the right time, not the fastest time • Right cost – not necessarily the lowest cost, but one appropriate for what is required. • Cost incurred and cost foregone • Cost incurred • Investment of operating cost for material handling technology and personnel. • Cost foregone • Cost of inventories, space, inspectors, expediters, and other personnel not needed because of the installation of the material handling system. • Reduction in losses due to damage and pilfering need to be included • Right methods • Requirements-driven materials handling systems over solution-driven system. • Solution-driven systems are those in which technologies are chosen without consideration for how the technologies match requirements; instead or defining requirements and matching technology options to requirements, the solution-driven approach force-fits a technology on the system....
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- Fall '09
- Distance, The Unit, Material Flow Analysis