Panduit FLBSIM-51 Continuous Roll-Up Blank Panel
The Panduit FLBSIM-51 delivers flexible airflow containment for datacenter racks and network enclosures with variable open-unit configurations. Unlike fixed-height blank panels that require stocking multiple sizes or leaving gaps, this continuous roll-up design uses opaque fabric on a spring-loaded roller to cover any combination of consecutive rack units—roll it down to seal airflow bypass paths, roll it up when you add equipment. The lower handle locks into vertical mounting rails on CEA-310-E standard racks, giving installers a reusable, adjustable blanking solution that adapts as equipment density changes without panel swaps or re-ordering.
Key Features
- Continuous roll-up design: Opaque fabric on spring roller adjusts to cover 1U–42U of open rack space as needed, eliminating the need for fixed-height panel inventories
- 19-inch rack standard: 19.1" width (486.7 mm) fits universal rack and cabinet vertical rails per CEA-310-E; 2.82" roller housing (71.6 mm) mounts in standard rack-unit spacing
- Locking lower handle: Secures fabric at any height and clips into vertical mounting rails for tool-free installation and repositioning
- Opaque fabric barrier: Black material blocks airflow bypass through empty rack units, supporting hot aisle/cold aisle containment strategies
- Compliance-ready: Meets CEA-310-E rack equipment standard and ASTM D6413 for material performance; RoHS compliant for EU and California deployments
Traditional blank panels require installers to stock multiple fixed heights (1U, 2U, 4U panels) and swap them whenever equipment layouts change—common in staging environments, colocation cages, or edge deployments where rack density fluctuates. The FLBSIM-51's spring-loaded roller solves this: one panel handles any gap from a single rack unit up to full-height coverage. The opaque fabric unrolls smoothly and locks at the desired height via the lower handle, which also serves as the mounting interface—align the handle's clips with the vertical rail holes, press to engage, and the panel is installed. When you need to add a server or switch, pull the handle to release, roll the fabric up to the new position, and re-lock. No screws, no panel removal, no downtime. The fabric tension holds flat against the rack face, maintaining a continuous barrier that prevents recirculated hot exhaust from entering the cold aisle—a critical failure mode in partially populated racks where cooling efficiency can drop 20–30% per unblocked open unit.
Deploy the FLBSIM-51 in colocation facilities where cabinet allocation changes weekly, staging labs where test configurations cycle daily, or edge sites where a single rack serves multiple tenants with varying footprints. The 19.1" width matches EIA-310-D and CEA-310-E universal rack standards, fitting NetShelter, SmartRack, and open-frame racks from APC, Tripp Lite, and Panduit's own Net-Series enclosures. The roll mechanism handles hundreds of adjustment cycles without fabric sag or spring fatigue, and the black opaque material blocks light leakage for secure facilities where visual barriers matter. Pair with horizontal cable managers and vertical PDUs to complete a clean, containment-compliant rack—each FLBSIM-51 ships as a single unit ready to install, with no assembly required.
CEA-310-E compliance ensures compatibility with current and legacy 19-inch rack standards across manufacturers, while ASTM D6413 certification confirms the fabric's tensile strength and flex-cycle durability for commercial datacenter use. RoHS conformance clears European and California restricted-substance requirements, simplifying procurement for multi-region deployments. For environments where airflow management directly impacts cooling costs and uptime, the FLBSIM-51's adjustable-height design eliminates the panel-inventory tax and gives facility teams a reusable tool that follows the rack through its lifecycle—from initial deployment through reconfigurations and decommissioning.
