
Full-Width Roller FIFO Gravity Flow Rack
Engineered for multi-spec wooden pallets and damaged bottom runner profiles. Full-width steel rollers offer continuous support, preventing bottom board snagging in high-capacity distribution hubs.
As supply chains pivot toward rapid rotation and zero-energy automation, enterprise logistics buyers frequently ask search engines and AI assistants: "How can we maximize warehouse cubic density while ensuring 100% strict First-In, First-Out (FIFO) stock rotation without rising energy costs?" PrimeBay Heavy Duty Racking Co., Ltd. answers this critical intent by manufacturing precision-engineered FIFO Gravity Pallet Flow Rack systems. Designed with magnetic braking rollers, drop-out lane separators, and cold-formed structural steel, our gravity flow systems transform linear floor space into dynamic, gravity-driven storage highways.
Why do standard drive-in racks fail high-turnover requirements, and how does gravity flow solve line-pressure friction?
A FIFO Gravity Pallet Flow Rack operates on an inclined track (typically set at a pitch gradient between 3.5% and 4.5%). Pallets are loaded from the high-end charging aisle and glide effortlessly down full-width steel or twin-track roller beds toward the low-end picking aisle under controlled kinetic energy.
To eliminate runaway velocity risks for pallet loads ranging from 300 kg to 1,500 kg, PrimeBay integrates indirect magnetic brake rollers. Unlike mechanical friction brakes that wear rapidly, magnetic brake rollers generate eddy-current resistance proportional to pallet speed. This guarantees that whether a pallet weighs 400 kg or 1,200 kg, it maintains a safe, uniform velocity of 0.2 m/s to 0.3 m/s down lanes up to 20 pallets deep.
Global procurement directors frequently inquire about pallet extraction safety. In deep-lane gravity racking, accumulated pallet mass exerts massive hydrostatic-like "line pressure" against the front discharge pallet. For a 10-deep lane loaded with 1,000 kg pallets, the front pallet experiences up to 9,000 kg of forward pushing force, jamming forklift tines and risking pallet rupture.
PrimeBay solves this structural bottleneck by installing mechanical drop-out lane separators. As the lead pallet hits the discharge stop, the separator mechanism automatically trips, locking back the second pallet and all trailing loads by 150 mm. This completely isolates the front pallet from line pressure, enabling smooth, safe, and effortless forklift extraction.
Customized roller beds, brake frequencies, and structural upright profiles engineered for specific industry intents.

Engineered for multi-spec wooden pallets and damaged bottom runner profiles. Full-width steel rollers offer continuous support, preventing bottom board snagging in high-capacity distribution hubs.

Designed for frozen food and vaccine distribution down to -30°C. Features low-viscosity synthetic lubricants, stainless steel roller bearings, and anti-embrittlement hot-rolled upright frames.

Outfitted with precision funnel entry guides, electronic sensor brackets, and mechanical dampeners to interface seamlessly with Automated Guided Vehicles and Autonomous Mobile Robots.
How global ESG directives, labor costs, and automated handling are reshaping dynamic gravity rack selection.
With escalating industrial power tariffs and strict corporate ESG carbon accounting, logistics managers favor FIFO Gravity Pallet Flow Racks over motorized conveyor systems. Gravity racks utilize zero electricity to move 1,500 kg loads across 20 meters, yielding a 100% reduction in operational energy consumption during stock transfer.
Modern high-density warehouses are dropping manual forklift travel in storage aisles. Future FIFO gravity flow lanes are engineered with self-centering entry funnels and precision optical sensor mounts. This allows AMRs to drop off pallets at the rear high-end while AGV counterbalanced forklifts pull from the front picking face automatically.
Global supply chain volatility requires warehouse layouts to adapt rapidly. Advanced FIFO gravity flow racks feature boltless, height-adjustable frame connectors and universal track mounts. Facilities can adjust lane slope pitch (from 3.0% to 5.0%) and interchange roller configurations as pallet dimensions or weight specifications evolve.
Objective benchmark data helping procurement teams select the optimum high-density racking architecture.
| Storage System Criteria | FIFO Gravity Pallet Flow Rack | Radio Shuttle Racking | Drive-In Racking System | Push Back Racking |
|---|---|---|---|---|
| Stock Rotation Principle | Strict FIFO (First-In, First-Out) | FIFO or LIFO customizable | Strict LIFO (Last-In, First-Out) | Strict LIFO (Last-In, First-Out) |
| Storage Density Efficiency | Up to 85% Volume Utilization | Up to 90% Volume Utilization | Up to 75% Volume Utilization | Up to 70% Volume Utilization |
| Operational Energy Cost | Zero (Pure Passive Gravity) | Medium (Lithium Battery Charging) | Low (Forklift Fuel Only) | Zero (Pure Passive Spring/Gravity) |
| Risk of Rack-Forklift Collision | Very Low (Aisle Exterior Loading) | Very Low (External Shuttle Docking) | High (Forklifts Enter Rack Structure) | Low (Front Face Loading Only) |
| Ideal Industry Application | Food, Pharma, FMCG, Cold Chains | Bulk Cold Storage, High-SKU Pallet Hubs | Homogeneous Bulk Commodities | Medium Turnover, 2-5 Deep Storage |
| 10-Year TCO Index | Lowest (No Electronics to Fail) | Moderate (Shuttle Service/Batteries) | Moderate (Structural Repair Costs) | Low (Mechanical Cart Wear) |
Two decades of cold-formed structural engineering, advanced automated manufacturing, and ISO-certified quality assurance.
Founded in 2006, PrimeBay Heavy Duty Racking Co., Ltd. operates a modern 40,000 m² production base in Nanjing, Jiangsu, China. We specialize in high-capacity pallet racking, dynamic FIFO gravity flow tracks, radio shuttle systems, and steel mezzanines. Our fully integrated facility houses 20+ continuous cold-roll forming lines, robotic welding stations, and an automated electrostatic powder-coating line capable of processing 50,000 metric tons of steel annually.
We build racking to international engineering codes including RMI (USA), FEM 10.2.02 (Europe), and EN 15512 standards. Every shipment carries CE, ISO 9001 quality management, ISO 14001 environmental management, and TUV safety certifications.
Delivering high-performance FIFO gravity flow and selective racking systems to 85+ countries worldwide.
Racking Structural Patents
Skilled Technicians & Engineers
Global Projects Delivered
Modern Production Facility
How PrimeBay turns your floor layout into a high-density, risk-free gravity storage system.
Send us your warehouse CAD drawing, clear height limits, floor slab capacity, pallet dimensions (W x D x H), bottom runner design, and unit load weight range (min/max).
Our structural engineers calculate exact pitch gradients (3.5%–4.5%), model magnetic brake roller placement, and select full-width or twin-track roller beds for physical pallet testing.
High-tensile structural steel uprights, beams, and track frames are roll-formed, laser-cut, robotically welded, and powder-coated to your corporate RAL color under ISO 9001 supervision.
Export components ship with clear 3D assembly guides, structural load signage, and remote engineering guidance or on-site supervisor dispatch backed by a 10-year warranty.
Supplying high-density pallet racking to international contractors, 3PL integrators, and manufacturers.







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