3D STORAGE SYSTEMS LIMITED

Address: 270 Harry Walker Parkway N. L3Y 7B4
Email: mail@3dstoragesystems.com
Toll-Free: 877.905.0003
Phone: 905.830.0003
Fax: 905.830.0338
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Achieving First-in-first-out (FIFO) with Pushback



3 Keys to Successful pushback applications

  • 1. First-in First-out stock rotation
  • 2. High Occupancy
  • 3. Random Storage

These three keys can easily be implemented by following these simple rules.

Rule #1
Select products to be stored that have at least 3 times the lane depth in average pallets in inventory.


Most storage facilities have products that range from one pallet per item up to many pallets per item. The average amount of storage per item should be used to select optimum lane length. The table shown will yield occupancy rates of 80% – 90%. The higher the number of lanes per product the higher the occupancy rate.

PALLETS PER PRODUCT LANE DEPTH LANE DEPTH
1 – 4 .................................................. STANDARD RACK
5 – 8 .................................................. 2 DEEP PUSHBACK
9 – 12 .................................................. 2 – 3 DEEP PUSHBACK
13 – 16 .................................................. 3 – 4 DEEP PUSHBACK
17 – 20 .................................................. 4 – 5 DEEP PUSHBACK
OVER 20 .................................................. 5 – 6 DEEP PUSHBACK

 
Rule #2
Never replenish a
partially filled lane
with a new lot
code of the existing
product or
a different product.


As a result of rule number 1 there is a minimum of three to five lanes available for any one product. Therefore, when a
new lot code is introduced, a new lane (as depicted in Red B) is selected so as to not block access to an existing lot code (as depicted in Red A).
Rule #3
When retrieving
loads for shipping or for use within the company, be sure to pick from the oldest part lane first.
Picking from the oldest part lane, (as shown in Red A) will automatically rotate your stock while freeing up empty lanes for general availability. This will result in no more than one part lane, per lot code. This procedure will ensure FIFO Stock Rotation
(First in – First Out).
Rule #4
Use random storage to minimize
honeycombing. This will enable you to maximize your storage facility.
Random storage in any of the lanes that become available will allow the storage requirement for any item to grow and shrink as necessary. Fixed locations would require storage to be preset for every item at its peak. Exceptions could be made for bottom
level case picking with fixed locations.

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