Pull Versus Push Systems

Pull and Push Systems are two different approaches in the production system,and manufacturing systems. A pull system uses signals to request production and delivery from upstream stations. Upstream stations only produce when signaledSystem is used within the immediate production process and with suppliers. Philosophy of a pull system used in the methods of Just in Time (JIT) to reduce variability and to reduce waste, so that can be zero inventory and zero waste. Push systems dump orders on the downstream stations regardless of the need.

Pull systems provides many benefits. By pulling material in small lots, inventory cushions are removed, exposing problems and emphasizing continual improvement. Manufacturing cycle time is reduced.

Originally Posted at ArifInfo.

3 Responses to Pull Versus Push Systems

  1. David Fernandes July 7, 2011 at 6:29 am #

    I disagree with the statement that cycle time would be reduced in a pull system vs a push system environment. It would incentivize innovations specifically becuase the manufacturing cycle time is longer per unit.

    Think of it this way if manufacturing costs & schedule can be explicitly optimized with a fully deterministic system. The price you pay for this is the inventory costs if demand is irregular.

    While pull smoothes this it does tend to increase cycle time and increase cost thus encouraging Lean practices

  2. anastacio contreras July 7, 2011 at 10:35 am #

    It’s a sad state of affairs when today,in the United States of America, we are still discussing a push system.No wonder we’re not number 1 in manufacturing cost competitiveness anymore.

  3. Valter Leite July 7, 2011 at 6:00 pm #

    Dear Arif,

    This is a very good note about pull system. I guess that this is macro information about that. Whether I need to implement a Pull System for some items. Which is step I need to follow. Can you suggest some of them?

    – supplier lead time, internal lead time, batch size, price,

    ps: my technology is forging

    You could help me!

    Best Regards,

    Valter Leite