Carton Flow Rack
Carton Flow Rack is a dynamic storage solution designed to streamline high-volume picking and optimize warehouse throughput. By leveraging the same principles as heavy-duty gravity flow racks, this system uses inclined lanes and gravity-fed components to move smaller, lighter items or cases from the replenishment side to the pick face.
Commonly referred to as “Gravity Flow for Small Goods,” this system is the gold standard for e-commerce, pharmaceutical, and food distribution centers where fast-moving SKUs require constant accessibility.
Key Features and Benefits
Gravity-Driven Flow
While a standard gravity rack handles 2,500 lb pallets, the carton flow rack utilizes the same physical force to move individual cartons or bins. This high-performance roller rack ensures that as items are loaded onto the higher “charge” end, they glide seamlessly along inclined lanes until they reach the “discharge” (pick) face. This eliminates the need for manual pushing and ensures a constant supply of product is always at the front.
First-In, First-Out (FIFO) Inventory Rotation
Consistent with high-density gravity storage, a carton flow rack is inherently a FIFO system.
- New inventory is added at the back.
- Existing stock is pushed forward to the pick face.
- This ensures that the oldest stock is always picked first, which is critical for perishable goods or products with strict expiration dates.
Maximized Order Picking Efficiency
Efficiency is where a roller rack system shines compared to static shelving. Because gravity brings the product to the worker, it minimizes travel time and reduces the physical strain of reaching into deep racks. By concentrating more SKUs in a smaller footprint at the pick face, you can significantly increase “picks per hour” while reducing labor costs.
Length Optimization
By utilizing vertical warehouse space and eliminating the need for wide aisles between every row of shelving, Carton Flow provides a high-density configuration. It allows businesses to store more inventory in a smaller footprint, delaying the need for costly facility expansions.
Customizable Configurations with Speedrack®
We offer highly versatile configurations tailored to your specific SKU profile. Our design philosophy focuses on durability and ease of adjustment:
- Adjustable Inclines: Fine-tune the flow speed based on carton weight.
- Versatile Lane Widths: Accommodate everything from small electronics boxes to large master cases.
- Seamless Integration: Our carton flow tracks can be integrated into existing Speedrack selective rack systems to create “pick modules” that combine bulk pallet storage with high-speed carton picking.
Specialized Solutions for Your Sector
We tailor our roller rack configurations to meet the requirements of high-velocity sectors:
E‑Commerce
Designing layouts that prioritize picking speed and accuracy to thrive in the demanding world of high-volume order fulfillment.
Manufacturing
We simplify your layout and improve material flow for small parts and kitting components, reducing bottlenecks on the production line.
Big & Bulky
While often used for small goods, we provide heavy-duty carton flow systems optimized for larger bins and bulky specialty items.
Food & Beverage
The industry standard for safe, compliant handling of split-case perishables and high-turnover goods requiring strict FIFO rotation.
Is Carton Flow Rack Right for You?
If your facility is struggling with congested aisles, slow picking rates, or poor inventory rotation, a carton flow rack is likely the solution. It is ideal for businesses looking to:
It is a Perfect Fit If:
- Streamline e-commerce fulfillment through a centralized pick module.
- Implement a structured FIFO system.
- Reduce worker fatigue and “dead-travel” time with an efficient roller rack layout.
- Maximize the storage capacity of a limited footprint.
Expert Note: For high-speed applications, we recommend pairing uprights with dedicated flow tracks to ensure your system can handle the daily rigors of a 24/7 distribution center.
Ready to Optimize Your Warehouse?
USSI handles the full lifecycle of your project, from custom engineering to professional installation. Our durable carton flow systems are built to increase your “picks-per-hour” and maximize every inch of your facility’s footprint.
Frequently Asked Questions
The main difference is the scale and the load. Carton Flow is designed for manual hand-picking of individual boxes or bins. Pallet Flow is a heavy-duty gravity system designed for full pallets handled by forklifts.
Yes. One of the greatest advantages of the carton flow rack design is its modularity. We can often integrate flow tracks into your existing selective rack uprights to create a dedicated pick module zone without replacing your entire system.
We use precision-pitched lanes (typically 1/2″ per foot) and high-quality plastic or metal rollers. For very light items, we can adjust the incline or use “impact trays” at the pick face to ensure the carton stops smoothly and remains accessible.
Standard cardboard cartons, plastic totes, and bins work best. The system is highly versatile, but we recommend a flat-bottomed container for the most consistent flow. We can provide “skate wheel” or “full-width roller” options depending on your specific packaging.