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SYSTEMS

WPG
Warehouse Products Group
A Division of Southern California Material Handling (SCMH)

The focus of the Warehouse Products Group is to provide you solutions that are:

Investment “R.O.I.” Justified

Labor Efficient &

Code Compliant

Whether you are new to SCMH, just “surfing the web” looking for solutions, or you are one of our valued Customer’s – our commitment is to draw from our years of experience and “partner” with you in the development, sourcing & implementation of your Material Handling solution.

SELECTIVE PALLET RACK

                  

“Selective” pallet rack is the most popular form of standard pallet storage rack sold or marketed today. If you’ve been to one of the large general merchandise “member’s only” retailers or Home Improvement chain stores, well then you’ve seen selective pallet rack.

Selective rack is also known for having the lowest “cost per pallet position” of all the different types of rack made today. Being made up of three (3) basic parts – the uprights, the beams and row spacers. Here are some other basic considerations…

Beams Levels. Not counting the floor position, how many beam or “shelf” levels will you require? For average pallet storage, 2 to 4 beam levels are most common. However, 10 or more beam levels will occur in the event of a tall building or in the case of short load heights.

Pallets Per Beam. Beam lengths vary and two pallets wide on a pair of beams are most typical. However, in the event of lighter weight loads, “three wide” is an attractive option. This is due to an approximate one-third reduction of the upright components necessary.

Wire Mesh Deck or “Front to Back” Supports. These two components have become more popular in recent years for three basic reasons. They are: 1) Additional pallet support, particularly in our seismic Zone 4 area. 2) Specifically the Wire Mesh Deck, can be used as decking for product and/or boxes that are not stored on a pallet. And 3) Both serve as an alternative to solid wood decking. All our local Fire Agencies have essentially “outlawed” solid decking as it restricts the effectiveness of an “in house” sprinkler system.

Column Protectors. These parts are designed to protect the pallet rack, due primarily from the damage caused by lift trucks. These components are usually recommended, at the very least, for the high traffic areas in each respective warehouse.

Selective Rack Advantages…

* Lowest “Cost Per Pallet Position” * 100% Selectivity or Access to Product * Adjustability *

Selective Rack Disadvatages…

* Poor Space Utilization or Storage Capacity (when used in combination with a traditional sit-down type lift truck) *

“DOUBLE DEEP” SELECTIVE RACK

Double Deep selective pallet rack is accomplished by placing one row of standard selective in front of another. The objective of this “two deep” pallet storage is quite simple – pallet storage density or capacity. Effectively, Double Deep eliminates half or 50% of the space required for lift truck operating aisles. Access to the pallets in this storage method requires the use of a specialized lift truck, known as the Double Deep Reach Truck.

While density is accomplished, this storage method is not for everyone. Theoretically, 50% of the pallet loads are “buried.” Double Deep is based on the “FILO” (First In, Last Out) storage principle. For example, high SKU count applications are typically not conducive to this storage method or type.

As a general comment, Double Deep is suited more towards specific applications than any type of industry. The type of applications best suited for Double Deep are:

Finished Goods – Where there is a lot of “like” product and or very low SKU counts.

High Turn Over or Product Rotation – “All In, All Out” such is found in the Produce business. Any product with a low shelf life is an obvious candidate for this type of storage.

Raw Material – The “bulk” storage of any material that is not sensitive to immediate access or FIFO requirements.

Maximized Storage – Regardless of any operational considerations, space limitations and/or storage requirements dictate this storage method.

“Double Deep” Advantages

* Typically will increase storage by 35 to 60% over standard selective rack. *Comparatively low investment cost as it relates to the storage capacity realized.

“Double Deep” Disadvantages

*Load uniformity is critical, must also be strictly maintained.
*Dependent on the application, can be very labor intensive due to the potential for multiple load handling and a lack of operator visibility.
*Load weight limitations.
*Higher than average potential for product damage due to limited operator visibility

DRIVE IN PALLET RACK

“Drive In” Pallet rack, as its’ name implies, is a multiple pallet deep form of storage accomplished by a lift truck driving into an open rack row or lane. Most typically, pallets can be stored from three (3) out to ten (10) “plus” pallets deep. Utilized properly, Drive In will provide a very high level of storage or product density.

For your reference, this is a “FILO” (First In, Last Out) form of storage. If your application is product rotation sensitive then most likely Drive In is not the type of rack best suited for you.

This type of rack is best suited to the following applications:

  1. “All In, All Out.” Much like you find in most Produce industry applications is virtually ideal.
  2. Low SKU Counts. Where there are far more pallets than there are SKU’s. “W.I.P” (Work In Process) storage of raw materials is just one example.
  3. Slow Moving Product. Say in the instance of a bulk buy of material that you’ll store for longer periods of time. And product that is not conducive to simply stacking on top of each other.
  4. No Space For Storage. Literally, Drive In that provides you an amount storage capacity that you would not have otherwise. Be it less than ideal for handling reasons, you simply require maximum storage.

Typical Users and/or Industry for this type of rack storage method are:

* Produce Industry * Meat Processing – Both “Wet” & Frozen * Finished Goods Storage – All Industries * Raw Materials – All Industries

Drive In Rack Advantages…

  • The lowest “cost per pallet stored” of all the various forms of “multiple deep” pallet rack.
  • A high density method of pallet storage.

Drive In Rack Disadvantages…

  • Load size & uniformity is a critical requirement.
  • Expense. Can easily average 3 times that of standard selective rack.
  • High maintenance. Due to damage from the lift truck driving in and out.
  • Potential for low productivity and/or labor intensive when not loaded or managed properly.
  • Potential for storage loss due to “honeycombing.”
  • Generally, inflexible and un-adjustable.

PUSH BACK PALLET RACK

        

     Push Back pallet rack is a method of storing pallets “multiple deep” on a pallet cart system. Six (6) pallets deep is not uncommon. While also being a “FILO” storage method, the key advantage of Push Back is that you always maintain a “face” or front position.

Meaning, that you “push back” each pallet at each level which allows you to store and/or retrieve at each separate location or level along with 100% access to the front or face position at all times. This presents a huge operational advantage over other “multiple deep” storage methods, particularly if you have a multiple of product lines or SKU’s.

This type of rack is typically best suited to the following applications:

  1. High Density Requirements. Freezer, coolers and all types of expensive storage environments are the most common.
  2. Revenue Warehousing. Whether it’s Public Warehousing, a “3PL,” a Moving & Storage company or any other type of revenue based storage business, literally anywhere that charges for storage. Push Back maximizes revenues by virtue of the “pallet hotel” effect.
  3. Pallet Load Staging. Oft times it’s the loading dock that can have the highest degree of congestion. Push Back has been used to maximize pallet storage in a minimum of square footage.
  4. “Maxed Out” Storage. Regardless of the application, where maximum pallet storage is all that you’re concerned with.


Push Back Rack Advantages…

  • Product Density
  • Relative Selectivity, per each level and lane


Push Back Rack Disadvantages…

  • “Cost Per Pallet Position,” simply stated the second most expensive storage manufactured today.
  • FILO – Depending specifically on the individual application, challenges with product rotation, excessive handling and “honeycombing” can result.
CANTILEVER "LONG LOAD" RACK

Cantilever is designed to store long of virtually any length. And with decking Cantilever is also used in the storage of odd sized and/or awkward loads.

Typical users of this type of rack are:

  • Steel / Metal Service Centers – Wholesale or Retail
  • Lumber Yards / Wood Distribution – Wholesale or Retail
  • Finished Wood or Steel Products – Typically with their raw material storage.
  • Odd Size Loads – Ranging from car parts to corrugated storage to furniture


Cantilever Rack Advantages…

  • Can be designed to virtually any length, fifty foot (50’) “plus” load lengths
  • Open linear storage – no vertical uprights or disruptions
  • Can be designed with virtually any number arms, depending on the product height

Cantilever Rack Disadvantages…

  • Huge potential for wasting warehouse floor space, when designed or used with a conventional lift truck.
  • Expense. Can easily cost 2 to 3 times more than standard selective pallet rack
CARTON FLOW SHELVES

Carton Flow Shelves are a most efficient way to provide a tremendous amount of SKU’s, boxes or cases into a concentrated area of space for picking. Virtually every type of industry today has seen a dramatic increase in the number of SKU’s they are required to pick from and/or work with.

Carton Flow is a shelf that is installed into a Selective Pallet Rack frame system. Typically, the Carton Flow is on the lower rack levels providing access for personnel with full pallet storage above. Carton Flow creates a “pick aisle” by virtue of a gravity flow delivery “system.”

Carton Flow is flexible and versatile. Maybe “adaptable” is the best word to describe this product. Consider the following:

  1. Box or Case Size. This doesn’t really matter. Carton Flow can be designed or configured for virtually any case size.
  2. Application Changes. The shelf heights are easily adjustable.
  3. Pallet Rack Requirement(s). Carton Flow shelves can be installed into just about any type of rack. Whether it’s brand new rack material or it being retrofitted into existing material.
  4. Full Case or Split Case. Again given this products flexibility, it can be configured for just “full” case, just “split” case or both.
  5. Box / Case Sizes & Widths. Different types of Carton Flow exist. Certain types are better suited to consistent load sizes and weights. Others are designed to work with any different size or weight…this type tends to cost more.

Carton Flow Shelves Advantages…

  • Maximized storage combined with optimized access to a high concentration of SKU’s.
  • Minimized “travel” in order to pick full and split case quantities.
  • A safe picking environment is created due to a separate “load” aisle.
  • May eliminate the need for “man up” lift trucks.
  • Works well with or compliments an “automated” or mechanized take away method.

Carton Flow Shelves Disadvantages…

  • Some old style Selective Pallet Rack designs may not allow the retrofitting of shelves.
  • Misapplication of the shelving configuration & design can occur if there’s not a thorough understanding of the components and related options.
 

 

 
 
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