FIFO Flow Rack Design Checklist for Assembly Lines and Warehouses
For many factories, a lean pipe system is not just a set of tubes and connectors. It is a practical way to build workstations, carts, flow racks, and material handling structures that can change as production changes. This guide explains FIFO flow rack design from a buyer and engineering point of view.
Good FIFO flow rack design depends on container size, lane width, slope, roller pitch, load, picking direction, and operator ergonomics.
Flow rack design checklist
- Confirm box or container dimensions.
- Define the number of lanes.
- Calculate maximum load per lane.
- Select roller track width and roller type.
- Set the slope angle for smooth gravity flow.
- Add end stops to prevent containers from falling.
- Confirm picking height and replenishment height.
- Leave enough clearance for labels and hands.
Common causes of flow rack problems
| Problem | Likely cause | Correction |
|---|---|---|
| Boxes do not flow | Slope too low or roller pitch too wide | Increase slope or use denser rollers |
| Boxes move too fast | Slope too steep | Reduce slope or add braking control |
| Containers jam | Lane width too narrow | Add side clearance |
| Operator reach is poor | Picking level too high or too deep | Adjust height and depth |
Best practice for assembly lines
For assembly lines, design flow racks around the operator, not only around the container. Parts should be visible, easy to reach, and replenished from the opposite side when possible.
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