Custom Network Equipment Cabinets | Sheet Metal Factory

Custom Sheet Metal Solutions for Network Equipment Cabinets

Custom Sheet Metal Network Equipment Cabinets

ISO 9001±0.1mm TolFree DFMOn-Time

SanJun Hardware engineered 1,200 sets of precision sheet metal network equipment cabinets 鈥?42U server, 24U switch and 12U wall-mounted models 鈥?for a global network leader. Rated for 800 kg load, ≥40 dB EMI shielding and IP55 protection, these enclosures deliver long-term reliability across data centers, enterprise computer rooms and edge computing nodes.

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Product Overview

Precision-engineered network & server equipment enclosures built to your exact specifications

Powder-coated 42U network server cabinet sheet metal enclosure with ventilation holes
Key Specifications

Network Equipment Cabinets (42U / 24U / 12U)

  • Material: 1.5mm SPCC cold-rolled steel frame, 1.2mm panels, galvanized coating
  • Thickness: 0.8–1.5mm across frame, doors, trays and dust-filter frames
  • Tolerance: ±0.1mm sheet metal; laser cutting ±0.05mm
  • Finish: 70µm electrostatic powder coating, black / gray, anti-static
  • Load rating: ≥800kg static load; mounting trays to 150kg each
  • Quantity: 1,200 sets (42U server, 24U switch, 12U wall-mounted)
  • Rating: IP55 dust & water ingress; EMC ≥40dB (1MHz–10GHz)

Full Project Story

From initial concept to final delivery –every detail of this custom fabrication project

1Project Background

Driven by the build-out of 5G, cloud and big-data infrastructure, a leading global network equipment manufacturer launched a 2026 program for 1,200 sheet metal cabinets covering server, switch and wall-mounted network use. The enclosures had to carry heavy servers and switches while staying compact enough for standard racks.

  • 42U server cabinets, 24U switch cabinets and 12U wall-mounted cabinets
  • Compatibility with standard network mounting-hole spacing
  • Designed for data centers, enterprise rooms and outdoor edge nodes
42U server cabinet frame after laser cutting and CNC bending

Raw sheet metal cabinet frame before powder coating

2Client Pain Points

The customer’s previous supplier struggled to balance heavy load, EMC shielding and batch consistency. Cabinets were either too heavy and costly, or lost shielding strength when ventilation holes were added. Moist server rooms also caused early corrosion.

  • 800kg load demand without overweight, costly frames
  • ≥40dB shielding yet dense cooling airflow
  • Interchangeable components across three cabinet models
  • Corrosion resistance in 40–60% humidity rooms
Inner mounting tray and rail assembly inside network cabinet

Mounting tray and internal rail system of the cabinet

3Technical Challenges

Three engineering tensions defined the project: load versus lightweight, cooling versus shielding, and large-batch consistency. Finite element analysis guided rib placement, while a dual-layer rear door kept holes small enough to preserve shielding.

  • Reduce overall weight 15% while holding 800kg load
  • Φ3mm dense holes raise airflow 28% without EMI loss
  • 1,200 sets across 3 models with 100% interchangeability
Rear door with dense round ventilation holes and conductive gasket

Grid-pattern ventilation holes on the cabinet rear door

4Our Custom Solution

SanJun selected 1.5mm SPCC for the frame and 1.2mm for panels, added integrated CNC-formed reinforcing ribs and welded angle irons at stress points. A dual-layer rear door with Φ3mm holes, conductive foam gaskets and welded grounding bolts formed a continuous shielding loop.

  • Automated degreasing, phosphating and anti-rust primer before coating
  • Two-layer powder coating (primer + topcoat), 70µm
  • Custom 3D bending jigs; CMM sample check every 50 sets
Welded cabinet frame corners and reinforced angle iron joints

Reinforced welded corner joints on the cabinet main frame

5Actual Benefits

The 1,200 sets shipped four days ahead of the 35-day schedule with a 100% pass rate across load, EMC, IP and precision tests. After ten months in 15+ data centers and 300+ rooms, there were zero reports of deformation, corrosion or interference.

  • 30% reduction in cabinet maintenance costs
  • 96-hour salt spray and 30-day humidity tests passed
  • 3-year strategic agreement covering 5 new cabinet series
Finished black powder-coated network cabinets ready for shipment

Finished network cabinets packed for delivery

6Client Testimonial

SanJun’s professional grasp of network cabinet requirements and rigorous batch-customization capability made them the obvious long-term partner.

Procurement Director, Global Network Equipment Manufacturer

Installed network cabinets in a live data center row

Deployed cabinet row inside a data center

Why Choose Our Factory

Eight reasons global brands partner with SanJun Hardware for precision sheet metal fabrication

ISO 9001 Certified

Quality-managed production with documented processes and full traceability at every stage.

On-Time Delivery

Streamlined scheduling and capacity planning ensure your orders ship when promised.

Free DFM Support

Expert design-for-manufacturing review at no cost –optimize your design before production.

Precision Tolerance

Sheet metal ±0.1mm and CNC machining ±0.01mm –consistent accuracy across every batch.

One-Stop Service

From laser cutting and bending to welding, coating and assembly –all under one roof.

Rigorous QC

CMM inspection, coating adhesion tests, and 100% final inspection before every shipment.

Flexible Volume

Prototypes from 1 unit to production runs of 10,000+ –scalable capacity to match your needs.

Direct Communication

Work directly with our engineering team –fast responses, clear updates, no middlemen.

Start Your Custom Project Today

Send your specifications — free CAD design and factory-direct quotation within 24 hours.

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