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Span Track - Bed

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Optimize your pallet rack for picking and perishables with Span Track's wheel bed configuration. This innovative gravity flow system allows for ultimate flexibility and up to 90% space utilization from left to right. Cut costs by reducing travel time for order pickers and increasing their throughput up to 150%. With Span Track's wheel bed configuration, you put the laws of nature to work for your bottom line.


  • Attaches to pallet racks
  • Drop-in design for easy installation
  • Shark fin infeed guides ease replenishment
  • Built-in label holders
  • Rated to withstand sub-zero temperatures
  • Built-in safety features
  • Patented Interior notching saves vertical space
  • Customizable ends for your exact needs
  • Light, Standard, and Heavy-duty options
  • Available in custom to-the-inch sizes
  • 7 year warranty

Unex's Span Track is available in 2 main varieties: Bed and Lane. Find out the strengths of both types of gravity flow below. Mouse over the check mark for an explanation.

Bed Lane

Capacity High-capacity options allow for stacking

Flexibility Effortless reslotting with fins for changing track size

Stability Provides 300% more product contact to support weaker boxes

Versatility Works with multiple carton sizes


Span Track Bed is available in a number of configurations to suit your unique applications. Click the images below for a larger view.

Low Profile Nests between beams on hangers for maximum use of vertical space. Used for full case or each pick. Perfect for racks with pallet storage above
High Profile Rests on rack beams. Typically used in loose pick applications or where contouring racks is preferred. The fully adjustable overhang allows track to extend beyond pallet rack depth.
Knuckles Available for low and high profile tracks. Angled at 20° for increased efficiency in open box picking.
Hangerless Adjustable length track sits on the ledge of step beams in the front and rear, keeping the face of the beam clear.
Pick Trays Presents open cases to order pickers so product can be picked without interference and in full sight.
Deck Track Pushback-style for loading and picking from the front. Usually used against walls.
Cell Track Use in a flow cell to create a modular, dynamic storage unit designed for your unique operation.


For a complete list of specifications, click here.

  • Light duty: up to per foot
  • Standard duty: up to per foot
  • Heavy duty:up to per foot
  • WBS series: 1.6” diameter wheels (plastic)
  • SWS series: 1.9” diameter skatewheel (steel/bearing)
  • Adjustable centers from 2” to 3” on WBS series; 1.5” to 4.5” on SWS series


Impact Plates Slow Down Strips Pressure Relief Stops Infeed Guides Guard Rails
Steel protection to handle toughest loading conditions Add friction to slow cartons before transfer to knuckles or trays Ramp stop that eases back pressure to make front-case pick easier Snap on to the axle to indicate locations Available for some models


CASE STUDY: Pine State Trading Co.

Leading Distributor of Convenience Store Products Maximizes Space and Flexibility with UNEX Systems

With a warehouse space crunch jeopardizing growth opportunities, Pine State Trading Co. decided to make a big move and flex for the future.

More than 5,000 convenience stores in the New England region and New York depend on Pine State Trading Co. to deliver a variety of products to fill their shelves – from salads to cigarettes. “We distribute items of all shapes and sizes, and our stock can change frequently,” says Steve Mitchell, Director of Operations at Pine State Trading Co. “To keep up with customer demands, our distribution center must run efficiently and flawlessly.”