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LeanWhat is Lean?
“A manufacturing philosophy that shortens the time line between the customer order and the shipment by eliminating waste” - John Shook
What is Lean ?
What is Lean?
A strategy for maximizing value to customers
The relentless pursuit of the perfect process through waste elimination
A competitive advantage to produce:What is needed (customer expectations, quality, etc.)When it is neededUsing the absolute minimal resources
8 Types of Waste
Muda
Defects
Overproduction
Waiting
Non-Utilized
Resources
Transportation
Inventory
Motion
Extra-processing
“DOWNTIME”
Defective work or non-conforming output
Typical causes: Variation in processesLack of Standard Operating Procedures
Improvement ideas: Poke Yoke (Mistake Proofing) Jidoka (Autonomation) Cross training Document procedures Establish information needs
Waste - Defects
Manufacturing Example Service Example
Wrong packaging Wrong data entry
Producing beyond what is in immediate use
Typical causes:Production schedules & push productionCost justification for expensive equipmentWorking on the wrong parts at the wrong time
Improvement ideas: Reduce lead time and order quantity Establish a kanban system Level out the orders Remove all unnecessary paperwork Improve quality
Waste - Over-productionManufacturing Example Service Example
Producing more due to big batch size.
Producing a weekly report daily
Any delay between when one process steps ends and the next begins.
Typical causes: Idle time due to lack of “standard” operations Waiting for decisions (dispositions, inspections, materials, etc.) Waiting for shared equipment
Improvement ideas: Balance operations Eliminate unnecessary approvals Eliminate redundancies Establish Single piece flow Eliminate hand-offs
Waste - WaitingManufacturing Example Service Example
Downtime to machine changeover
Waiting for signatories prior to report submission
Not utilizing resources to its full capacity
Typical causes: Lack of standards Idle time
Improvement ideas: Do a skills matrix Cross training Level out orders Balance operations
Waste – Non-Utilized ResourcesManufacturing Example Service Example
Senior engineer doing manual tasks
Senior lead processor manually correcting entries
Needless movement of work, products or information
Typical causes: Unnecessary inventory Poor shop/office layout
Improvement ideas: Reduce inventory Reduce lead times Eliminate unnecessary files Create a paperless process Review record retention policy
Waste - TransportationManufacturing Example Service Example
Transfer of materials to another processing area
Shipping hard copies requiring signatures.
Excess WIP vs what is needed by the customer
Typical causes: Push production Over-ordering Too many shelves Too much floor space
Improvement ideas: Reduce lead times Establish kanban system
Waste - InventoryManufacturing Example Service Example
Excessive buffer stocks Claimed forms in a workflow stuck in the mailbox
Needless movement of people
Typical causes: Equipment/Office layout Fixture design Material storage
Improvement ideas: Implement point of use Develop work cells
downover
Waste - MotionManufacturing Example Service Example
Unnecessary twisting, bending and reaching movements of operator.
Opening 5 subdirectories to access a frequently-used file
Doing more work than is necessary to satisfy your customers.
Typical causes: Work is not standardized Tasks are not simplified Operations are not understood
Improvement ideas: Automate the process Eliminate non-value added steps Combine steps/forms
Waste – Extra-ProcessingManufacturing Example Service Example
Transfer of materials to another processing area
Excessive approvals or handoffs
Lean Principles5 principles of Lean
Define value from the end customer back Identify the value streamEstablish flowPull from the customerContinuously improve the process to perfection
Thank you !