Span Track Bed — Carton Flow for Picking & Perishables

Optimize your pallet rack for picking and perishables with Span Track's wheel bed configuration. This gravity flow system delivers up to 90% space utilization from left to right.

Cut costs by reducing travel time for order pickers and increasing throughput up to 150%. Span Track Bed is configured to your rack, carton type, and pick strategy—not sold off the shelf.

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Span Track Bed Features

Span Track Bed puts the laws of nature to work for your bottom line—gravity moves product to the pick face so cartons are always front and center.

Attaches to pallet racks with a drop-in design for easy installation
Shark fin infeed guides ease replenishment
Built-in label holders
Rated to withstand sub-zero temperatures—ideal for cold storage and perishables
Patented interior notching saves vertical space
Light, standard, and heavy-duty options, with customizable ends and to-the-inch custom sizes
Backed by a 7-year warranty

Bed or Lane? When to Choose Span Track Bed

Span Track comes in two main varieties: Bed and Lane. The wheel Bed configuration uses a full-width rolling surface, making it the better choice when you need maximum product contact and stacking capacity.

Capacity: high-capacity options allow for stacking
Stability: provides 300% more product contact to support weaker boxes
Versatility: works with multiple carton sizes

Need to compare? See Span Track Lane for an all-metal roller surface built for flexibility and effortless reslotting.

Span Track Bed Configurations

Span Track Bed is available in a number of configurations to suit your unique applications.

Low Profile

Nests between beams on hangers for maximum use of vertical space. Used for full-case or each-pick, and perfect for racks with pallet storage above.

High Profile

Rests on rack beams for loose-pick applications or where contouring racks is preferred. The fully adjustable overhang lets track 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 front and rear, keeping the face of the beam clear.

Pick Trays

Present 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 operation.

Tech Specs

Span Track Bed wheel beds are built to handle a wide range of carton weights and sizes. Final capacities are confirmed during configuration.

Duty ratings: light, standard, and heavy-duty capacities to match your load per foot
WBS series wheels: 1.6" diameter plastic wheels, adjustable centers from 2" to 3"
SWS series wheels: 1.9" diameter steel/bearing skatewheels, adjustable centers from 1.5" to 4.5"
Available in custom, to-the-inch sizes with customizable ends

Accessories

Add accessories to fine-tune flow, protect loads, and make picking faster and safer.

Impact Plates

Steel protection to handle the toughest loading conditions.

Slow Down Strips

Add friction to slow cartons before transfer to knuckles or trays.

Pressure Relief Stops

Ramp stop that eases back pressure to make the front-case pick easier.

Infeed Guides

Snap onto the axle to indicate locations and guide replenishment.

Guard Rails

Available for select models.

Real-World Example

Pine State Trading Co.—which supplies more than 5,000 convenience stores across New England and New York with products of every shape and size—turned to UNEX Span Track to keep its distribution center running efficiently as inventory and SKUs grew.

Read the Case Study

See Span Track Bed in Action

Frequently Asked Questions About Span Track Bed

Shelving.com helps warehouse, distribution, and fulfillment teams choose between Span Track Bed and Lane, select the right configuration, and gather the details needed before requesting a quote.

What is Span Track Bed carton flow used for?

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Span Track Bed is a gravity flow system that mounts in pallet rack to move cartons to the pick face automatically. It's ideal for order picking and perishables, delivering up to 90% left-to-right space utilization and increasing picker throughput by up to 150%.

What's the difference between Span Track Bed and Span Track Lane?

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Bed uses a full-width wheel surface that provides up to 300% more product contact—better for stacking capacity and supporting weaker boxes. Lane uses an all-metal roller surface built for flexibility and effortless reslotting. Both attach to pallet racks and work with multiple carton sizes.

What configurations does Span Track Bed come in?

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Low Profile, High Profile, Knuckles, Hangerless, Pick Trays, Deck Track, and Cell Track. Each suits a different picking style or rack setup, and tracks are available in custom, to-the-inch sizes.

Can Span Track Bed be installed in my existing pallet rack?

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Yes. Span Track Bed uses a drop-in design that attaches to pallet racks for easy installation. Profiles like Hangerless and Low/High Profile are designed to integrate with existing beams and step beams.

Does Span Track Bed work in cold storage or freezers?

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Yes. Span Track Bed is rated to withstand sub-zero temperatures, making it well suited to refrigerated and frozen environments, and it's backed by a 7-year warranty.

How do I get a quote for Span Track Bed?

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Share your rack dimensions, carton sizes and weights, pick strategy, and any temperature requirements. We'll recommend the right configuration, duty rating, and accessories, then quote the system. Span Track Bed is configured to your operation rather than sold as a standard add-to-cart item.

Carton Flow & Picking Resources

Span Track Bed works hand in hand with the rest of our carton flow and picking systems. Explore related solutions to design a complete pick line for your operation.

Span Track Lane

The original all-metal roller carton flow. Span Track Lane is built for flexibility and effortless reslotting, decreasing travel time and boosting throughput by up to 150%.

View Span Track Lane →

Roller Racks

Standalone or bayed carton flow racks built on Span Track. Up to 7x more SKU density per bay than pallet rack and 80% less travel time for pickers.

View Roller Racks →

Pick Shelves

Angled steel pick shelves that kill the rear dead zone. Add them to Span Track for partial-case picks or use them alone for slow movers.

View Pick Shelves →