Gravity racking systems, commonly known as Pallet Flow Racks, utilize a dynamic combination of sloped roller tracks, velocity braking mechanisms, and structural heavy-duty steel framing. These systems leverage gravity to automatically slide pallets from the loading aisle to the picking face, ensuring a perfect First-In, First-Out (FIFO) material flow.
By engineering systems with exact flow angles (typically 3% to 4%), and integrating speed controllers, we eliminate structural drift and potential load damage. This level of customized storage density maximizes warehouse surface utilization by up to 60% compared to standard selective pallet racking.
Established in 2015, Shenzhen Lijin Storage Equipment Co., Ltd. is a leading enterprise specializing in the design, manufacturing, and global distribution of heavy-duty warehouse racking systems, automated storage solutions, and industrial shelving. Spanning a state-of-the-art facility of 35,000 m², we have developed into a trusted global supply chain partner with over 8 years of direct export experience and more than 12 years of deep industry expertise. Driven by innovation and quality, our global revenue reached USD 22 million last year.
Supported by a skilled team of 28 R&D engineers, Shenzhen Lijin delivers comprehensive OEM and ODM solutions tailored to unique warehouse layouts, seismic requirements, and capacity needs. Our engineering team launched over 85 new products and dynamic storage configurations last year, continuously setting new standards in space optimization and modern automated storage integration.
We source certified Q235 and Q355 high-strength structural carbon steel. Our profiles undergo rigid cold-roll forming to create upright profiles with optimized torque resistance, ensuring structural stability under high loading loads up to 4.5T per layer.
All structural designs adhere strictly to RMI (Rack Manufacturers Institute) guidelines and FEM standards (European Federation of Materials Handling) 10.2.02. This ensures localized safety factors, seismic engineering compliance, and load capacities that meet North American and European structural guidelines.
Every gravity track configuration features engineered centrifugal brake rollers. These rollers control pallet descent speeds to 0.25 m/s, preventing dynamic collision risks at the picking aisle and ensuring safe operations, even for highly sensitive cargo.
At Shenzhen Lijin, our vertical manufacturing ecosystem guarantees absolute control over structural precision. We execute ultrasonic non-destructive testing, automated weld inspection, laser dimensional checking, and heavy-load endurance testing under the strict command of 35 dedicated QC professionals.
Under freezing environments down to -25°C, space optimization is critical. Our dynamic gravity systems are engineered with customized anti-freeze dynamic brake rollers and low-temperature-resistant bearing lubricants, maintaining FIFO food storage rotation without system slowdowns.
To support high-velocity order staging, our gravity flow systems serve as the interface between storage blocks and AGV/AMR pathways. Pallets move smoothly down gravity rails to be directly accessed by robots and picker teams, reducing cycle times by 40%.
Compliance dictates strict expiration date controls. By locking warehouse operations into a strict mechanical FIFO sequence, our gravity racking systems prevent product obsolescence and guarantee that older stock is shipped first.
Heavy component manufacturers feed assembly lines via gravity lanes. Raw metal plates, dynamic molds, and sub-assemblies glide directly to the point-of-use (POU) on durable steel rollers, eliminating forklift traffic in pedestrian zones.
Designing an efficient gravity system requires balanced friction calculations. If the incline angle is too shallow, static friction prevents the pallet from rolling. If it is too steep, kinetic energy builds too rapidly, causing high impacts on the discharge side. Our engineering team designs and tests incline ranges between 3.2% and 3.8% using advanced computer simulations, adjusting for varied pallet compositions (wood, plastic, steel pod runners) to establish reliable dynamic performance.
Sourcing from Shenzhen, China, provides distinct global supply chain advantages. Our close proximity to the steel production hubs and international shipping terminals guarantees competitive freight logistics, fast export document clearing, and structural stability. By processing all stages in-house—from cold-roll forming to dynamic automated powder coating—Lijin cuts production lead times by up to 25%, while remaining fully compliant with global building codes.
To secure dynamic warehouse environments, our structures integrate several structural safety elements:
Lijin Racking