JIT (Just-in-time) manufacturing.

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JIT (Just In Time )

JIT (Just-In-Time) Meaning:
JIT (Just-In-Time) manufacturing:

  • Full form of JIT is Just-In-Time.
  • JIT (Just-in-time) manufacturing is planning in terms of procurement policies and the manufacturing process.
  • The JIT (Just-In-Time) inventory system is a management strategy where raw-material is ordered from suppliers as per production schedules so as to increase efficiency and decrease waste by receiving goods only as they are needed in the production process, hence reducing inventory costs. 
  • In short, JIT (Just-In-Time) manufacturing is an inventory management system to increase efficiency and decrease waste by receiving only sufficient goods to meet demand.
  • JIT (Just-In-Time) manufacturing works on a demand-pull basis.

Factors reliant:

1. Timely supply of raw materials by supplier.

2. Company is using raw materials, leaving little to no raw materials left over after production.

3. Companies utilizing the raw materials for filling orders on a timely basis.

Three Tenants Of JIT:

  • Minimize waste in all forms
  • Continuous improvement in process and system.
  • Maintain respect for all workers.

Characteristics Of JIT (Just In Time) manufacturing:

  • Pull Method.
  • Small Lot Sizes.
  • Uniform Workstation Loads.
  • Consistently High Quality.
  • Standardized Components and Work Methods.
  • Close Supplier Ties.
  • Flexible Workplace.
  • Line Flows.
  • Automated Production.
  • Preventive Maintenance.

Problems In JIT Implementation:

  • Discipline Required.
  • Cooperation and Trust Required.
  • Applicable to Repetitive Operations.
  • Requires Change of Philosophy.

Precautions to be taken while Implementing a Just-In-Time (JIT) Manufacturing System:

  • Management buy-in and support at all levels of the organization are required.
  • Adequate resources should be allocated.
  • The design flow process needs to be redesigned if required.
  • Layouts need to be re-formatted as per convenience.
  • Lot sizes need to be minimized.
  • Workstation capacity should be balanced whenever possible.
  • Preventive maintenance should be carried out, to minimize machine breakdowns and line downtimes.
  • Set-up times should be reduced wherever possible.
  • Quality enhancement programs should be adopted.
  • Reduction in lead times and frequent deliveries should be incorporated.
  • Motion waste should be minimized.





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Location: India

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