Bae 5 Tracker

Pallet Rack for the warehouse

pallet racking

Selective pallet racking systems

Is a common pallet racking system in use today. Selective pallet racking systems typically come in one of two configurations:a roll formed, or clip-in configuration, and a structural bolt-together configuration.

  • Roll formed selective rack is most commonly manufactured in a “teardrop”style (so named as the holes on the column of the upright are shaped like (a teardrop). Pallets then rest on the horizontal load beams that are held in place by mounting clips. Because the clips on teardrop configurations can be quickly moved, the shelves can be easily adjusted to different heights to accommodate various load sizes. This is convenient for a warehouse that needs to store a wide variety of product sizes.
  • Structural pallet rack systems are very similar to roll formed pallet rack systems except the horizontal load beams are attached to the uprights with bolts and have much greater weight-bearing capacity. The bolt fixings make this a form of adjustable shelving- racks can be constructed,reconfigured, and dismantled and reused as necessary.

 

 Structural pallet rack

Structural pallet racking

Structure pallet rack is designed to store heavier loads. It is designed like roll form racking but built with structural channel. Can be designed into the structure of the building itself,so that the upright columns are simultaneously used to support the roof of the storage facility, in which case the structural pallet rack uprights replace the storage building’s vertical support I-beams. This system is a rack supported building.

Selective pallet rack systems

Provide easy accessibility to all products at all times- important if the inventory is rapidly depleted and restocked (called quick turnover). A selective pallet rack system is commonly used in a “big-box”distribution application, as well as in retail store inventory rooms, cold storage applications, wholesale stores, etc.

 narrow aisle pallet rack vna

Very narrow aisle

Otherwise known as VNA, is the use of selective pallet racking in a tighter configuration to provide maximum space utilization within a storage facility. These systems typically operate in conjunction with wire-guided or rail-guided reach-truck systems. A wire-guided system consists of a wire embedded in the concrete floor that provides tracking for the reach-truck. A rail-guided system consists of angle iron bolted to the floor down the length of each row. Typically, the angle iron is 4” by 3” and ¼” – inches thick. A distinct advantage of a narrow aisle pallet racking is fast picking without large aisles which results in improved use of space. When there is limited space, a compact storage method is ideal.

Single-deep Rack

Single-deep rack, or selective rack, is the most common type used in warehouses and distribution centers. Since loads are stored one pallet deep, this is the lowest density storage of any system, but it allows unimpeded access to every pallet. It can be used in a number of aisle configurations and can be paired with any type of lift truck.

Double-deep Rack

Double-deep rack stores one pallet load behind another in a structure that’s twice as deep as single-deep. This design doubles storage, but it limits access and flexibility.

To access the rear pallet load, the front pallet position must be empty. Double handling is necessary unless pallets are stored on a last-in/first-out basis. In most cases, two pallets with the same product are stored in a slot of a double-deep rack, which limits flexibility and requires a deep-reach lift truck to access loads in the rear position.

High Density Rack

High-density rack consists of the following types of rack:

     Drive in racking

  • Drive-in rack can be configured to store loads four or more deep, creating very dense storage. For example, a drive-in system that stores pallets four high and five deep can hold 20 pallet loads in each bay.
    In a drive-in system, lift trucks drive into the front of a storage bay, place a load in the designated position then back out. The rack is designed without traditional beams across the bays so lift trucks can maneuver in and out. Instead, pallets rest on rails that run along the inside of the bay, perpendicular to the aisles.
    Pallets are stored on a last-in/first-out basis. Each bay is typically dedicated to a single product, so drive-in rack is best used for storing large quantities of the same product. They work well where an entire bay of product is moved at once, such as in staging product for shipping.
  • Drive-through rack is almost the same as drive-in, except that drive-through rack allows lift trucks to enter from either end. This means an aisle is required at both ends of the structure, but it increases access to pallet loads and can be loaded from one end and emptied from the other, enabling first-in/first-out product rotation.

 

Dynamic Storage Rack

Dynamic storage rack consist of the following types of rack:

     skate wheel flow racking

  • Gravity flow rack combines a stationary racking structure with either a skate wheel or roller conveyor to create a specialized dynamic storage system. Pallets are loaded into the back end of the rack and then travel down the slightly inclined plane of conveyor or rollers so they can be easily retrieved from the front of the system.
    Gravity Flow rack systems provide high-density storage by storing product multiple pallets deep. Since each layer of flow rack is typically dedicated to a single product or SKU, these systems offer less storage flexibility than selective rack, but more than drive-in or drive-through pallet rack.
    This option may be best for your application if you are storing dated products, because it allows easy rotation of inventory on a first-in/first-out (FIFO) basis. It can be used for picking by the piece, carton, or pallet. Carton flow rack that stores individual cartons are also available from our manufacturers. DL
  • Push Back rack combines a stationary rack structure with nested carts that move along inclined rails. The first pallet, which is loaded from the front, is placed on top of the cart. When the second pallet is loaded, it pushes back the first pallet, exposing the second cart, and so on.
  • Usually configured two to five pallets deep, these systems offer dense storage. Like flow rack, push-back rack does not require a lift truck to enter the racking structure or require an entire bay to be dedicated to one product. Unlike flow-rack, however, push-back rack manages inventory on a last-in/first-out basis and requires less space than flow-rack because rear access is not necessary.

 

There are a couple of types of pallet rack safety netting applications:

 pallet rack netting

  • Offset installation is required where pallets or product loads overhang the rack face 3″ or more. Our adjustable horizontal offset brackets provide the base for a cable frame which supports the netting away from the rack frame.

  • Flush Mounted installation is used when no allowance for pallet or product overhang is required. Heavy duty nylon tie wraps are used to attach the netting directly to the rack frame on 1′ centers on all edges.

 

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