Custom 2U Rack Blank Panels
A 2U rack blanking panel designed for standard 19-inch server racks and network cabinets. It fills unused rack spaces, prevents hot air recirculation, and improves cooling efficiency.
- Compatible with 19-inch EIA-310-D standard racks — standard 2U height (88.9 mm)
- Three material options available: cold rolled steel, SS304 stainless steel, and aluminum alloy
- Available in 1U, 2U, 3U, and 4U heights — custom U sizes available
- Two installation options: cage nut screw mounting and tool-less snap-in mounting
- Standard matte black powder coating (RAL 9005) — custom RAL colors available
- Compliant with RoHS and REACH requirements — certificates available upon request
- Full OEM/ODM support — send your drawings for quotation
Product Details
Material Specifications
| Parameter | Options | Description |
|---|---|---|
| Base Material | Cold rolled steel (SPCC) / 304 stainless steel / Aluminum alloy (AL5052) | Select based on application environment and weight requirements |
| Material Thickness | 1.0 mm / 1.2 mm / 1.5 mm / 2.0 mm | Greater thickness provides higher rigidity; confirm before ordering |
| Steel Gauge Equivalent | 14 ga / 16 ga / 18 ga / 20 ga | For reference only; metric thickness is the primary specification |
Dimensional Specifications
| Parameter | Value | Description |
|---|---|---|
| Panel Height | 88.9 mm (2U) standard — available in 1U/3U/4U | Complies with EIA-310-D rack unit standards |
| Panel Width | 482.6 mm (19″) standard | Fits standard 19″ rack openings; custom widths available |
| Panel Depth (Profile) | 5–15 mm depending on edge design | Folded-edge panels have greater depth than flat panels |
| Mounting Hole Pattern | Complies with EIA-310-D (15.875 mm / 31.75 mm alternating spacing) | Compatible with square-hole, round-hole, and threaded-hole racks |
| Mounting Hole Diameter | 6.5 mm (for M6 cage nuts) | Custom hole sizes available |
| Dimensional Tolerance | ±0.2 mm for critical features | Applies to hole positions, panel width, and bend angles |
Surface Finish Specifications
| Parameter | Options | Description |
|---|---|---|
| Finish Type | Matte powder coating / Textured powder coating / Clear anodizing / Brushed anodizing | Steel panels typically use powder coating; aluminum panels use anodizing |
| Powder Coating Thickness | 60–80 μm | Uniform coverage with batch inspection |
| Anodizing Thickness | 10–15 μm | Available in Type II (decorative) or Type III (hard anodizing) |
| Standard Color | Black (RAL 9005) | Custom RAL colors available — MOQ may apply |
| Salt Spray Test | 48–96 hours (powder-coated panels) / 500+ hours (anodized aluminum) | Tested according to ASTM B117; actual performance depends on environment |
Installation Specifications
| Parameter | Details |
|---|---|
| Mounting Hardware (Screw Version) | Cage nuts + screws + washers — quantity matched to U height |
| Mounting Hardware (Tool-Less Version) | Integrated spring clips — no tools required |
| Compatible Rack Hole Types | Square holes, round holes, threaded holes |
| Compatible Rack Width | Standard 19″ (482.6 mm) — custom widths available for specialized racks |
Packaging Specifications
| Parameter | Details |
|---|---|
| Standard Packaging | Individual plastic bag + corrugated carton |
| Bulk Packaging | Carton packaging; quantity per carton varies by U height |
| Custom Packaging | Retail boxes, OEM branded packaging, or blister packaging available upon request |
Compliance Certifications
| Standard | Status |
|---|---|
| RoHS (2011/65/EU) | Compliant — certificates available |
| REACH (EC 1907/2006) | Compliant — certificates available |
| EIA-310-D | Mounting dimensions compatible |
Choosing the Right Panel for Your Rack
Solid Panel vs. Vented Panel
This image compares solid and vented rack panels, showing how different panel designs affect airflow control and rack cooling management.
| Comparison | Solid Panel | Vented Panel |
|---|---|---|
| Airflow | Fully sealed — blocks all bypass airflow | Partially open — provides controlled ventilation through perforations |
| Best Application | Hot aisle/cold aisle airflow separation; maximizing cooling efficiency | Racks requiring additional airflow at unused positions |
| Typical Applications | Colocation data centers, enterprise server rooms | Telecom racks, AV cabinets, mixed equipment racks |
Material Selection
This image compares different rack panel materials, highlighting the differences between cold rolled steel, stainless steel, and aluminum alloy options.
| Material | Weight | Corrosion Resistance | Typical Applications |
|---|---|---|---|
| Cold Rolled Steel (SPCC) | Medium | Standard (with powder coating) | General indoor racks |
| 304 Stainless Steel | Heavier | High — resistant to humidity and chemical corrosion | Coastal, high-humidity, or industrial environments |
| Aluminum Alloy (AL5052) | Lightweight (approximately 35% of steel weight) | Good (with anodizing treatment) | Weight-sensitive applications, portable racks, AV equipment |
If you are unsure which material is suitable for your application environment, send us your usage details and we will recommend the best combination.
Manufacturing Process & Quality Control
Every panel is manufactured through our in-house sheet metal production line:
This image shows the manufacturing workflow of rack blanking panels, including CNC punching, press brake forming, edge finishing, and surface treatment.
- CNC Turret Punching — mounting holes and ventilation patterns controlled within ±0.2 mm accuracy
- Precision Press Brake Forming — consistent edge folding and return bends with uniform bend radius
- Deburring and Edge Finishing — all edges are smoothly finished for safe installation and handling
- Surface Treatment — powder coating thickness 60–80 μm; anodizing thickness 10–15 μm
- Salt Spray Testing — powder-coated panels pass 48–96 hour testing; anodized aluminum panels pass 500+ hour testing
Critical mounting features are controlled within ±0.2 mm tolerance. Each production batch undergoes inspection for hole accuracy, surface finish consistency, and panel flatness.
This image demonstrates quality inspection of rack panels, focusing on hole accuracy, panel dimensions, and surface finish consistency.
Package Contents
Each panel includes:
· 1× blanking panel (selected U height, material, and panel type)
· Screw mounting version includes cage nuts, screws, and washers (quantity matched to panel U height)
· Individual plastic bag packaging; bulk orders packed in cartons
Customization & OEM Services
This image shows the OEM customization process from customer drawings and engineering review to prototype production and final manufacturing.
We manufacture blanking panels according to your specifications. Common customization requirements include:
- · Custom U Heights — 1U to 10U+ with any rack mounting increment supported
- · Custom Ventilation Patterns — round perforations, louver slots, honeycomb holes, or customer-supplied patterns
- · Custom Dimensions — non-standard widths or depths for specialized rack systems
- · Branding Options — screen printing, laser engraving, or labels
- · Surface Finishes — any RAL color, textured powder coating, or custom anodizing
- · Packaging Options — retail boxes, OEM branded packaging, or bulk carton packaging
- Process: Send drawings or samples → We confirm manufacturability and provide quotation → Sample approval → Mass production.
Standard products can ship within several working days. After drawing confirmation, customized samples typically require 7–10 working days.
Why Choose Us
- · In-house Manufacturing — CNC punching, bending, welding, and surface treatment completed internally with full process control
- · Flexible Material Options — capable of processing cold rolled steel, SS304, SS316, aluminum alloy, and galvanized steel
- · Low MOQ for Standard Products — order on demand without large inventory requirements
- · Fast Prototyping — customized samples completed within 7–10 days
- · Engineering Support — our team reviews your drawings for manufacturability before production
- · Stable Quality — ±0.2 mm tolerance control, batch inspection, and material certificates available
This image shows typical applications of rack blanking panels in data centers, telecom cabinets, and industrial server racks.
