3925 Stern Ave, Saint Charles, IL 60174

Telecom Enclosures
Built for Protection & Reliability

HFI Manufacturing fabricates telecom enclosures, cabinets, and racks for indoor and outdoor infrastructure. NEMA-rated designs built to protect sensitive equipment in any environment.

Enclosures Built for the Network Edge

Telecom infrastructure demands enclosures that protect sensitive electronics from weather, dust, vibration, and temperature extremes. HFI builds cabinets and racks that meet NEMA, IP, and customer-specific environmental ratings — from central office to remote deployment.

Our team works with your engineers to integrate cable management, thermal management, and mounting provisions directly into the fabrication design, reducing assembly time and field installation costs.

60

Years in Business

NEMA

3R / 4 / 12

10ga

Heavy-Gauge Steel

Powder

Coat Finishes

Our Telecom Enclosure Capabilities

Fabrication processes designed for weather-sealed, thermally managed, and vandal-resistant enclosures.

Quality

ISO 9001-certified quality with documented inspections, CMM verification, and fit-up validation to ensure weather-sealed enclosures, consistent tolerances, and reliable performance in demanding telecom environments.

Cutting

Fiber laser cuts steel and aluminum with burr-free edges. Clean cutouts for knockouts, vents, and cable entry plates.

Bending

CNC press brakes handle 10ga steel and 3/16″ aluminum. Consistent bend angles for gasket-compression sealing surfaces.

Welding

Continuous seam welding for weather-tight enclosures. Robotic MIG for high-volume cabinet bodies, TIG for cosmetic visible surfaces.

Assembly & Kitting

Hinges, latches, ground studs, cable glands, and PEM hardware installed. Doors hung and aligned prior to shipment.

Finishing

Powder coating in RAL or custom colors. Outdoor-grade UV-resistant finishes with salt spray testing available.

Products We Fabricate for Telecom OEMs

From cabinets to brackets — specific products and components we build for telecom infrastructure.

Twin-Outdoor-Cabinet
Assemblies

Electromechanical Assemblies

Mechanical assemblies integrated with electrical components and hardware.
High Density Alarm Collection Device
Fabrication

Aluminum Sheet Metal Parts

Lightweight aluminum components for commercial and industrial products.
HFI Product - polished stainless steel sheet metal panel featuring stamped, raised louver vents
Fabrication

Laser Cut Sheet Metal Parts

Precision laser-cut components produced from steel, stainless steel, and aluminum.
server rack cabinet
Racks & Cabinets

Telecom Racks & Cabinets

Fabricated racks and cabinets for networking and telecommunications equipment.

Materials & Finishes We Work With

Certified materials with full traceability — selected for your specific application.

Galvanized Steel

Primary outdoor enclosure material. Excellent corrosion resistance. 16ga — 10ga.

Galvanized Steel

Aluminum

Lightweight outdoor cabinets and radio mounts. 5052, 6061 grades.

Aluminum

304 Stainless

For coastal environments and corrosive industrial settings requiring maximum corrosion resistance.

304 Stainless

Cold Rolled Steel

For indoor racks and cabinets. Powder-coated for cosmetic finish and basic protection.

Cold Rolled Steel

How It Works

From your flat pattern to a finished formed part — precise and repeatable.

1

Design Review

We review your drawings, suggest optimizations, and confirm tolerances, materials, and finish specifications.
2

Quote & Sample

Competitive pricing with volume breaks. First-article samples available for critical-fit parts.
3

Production

Laser cutting, CNC forming, welding, finishing — all under one roof. CMM inspection throughout.
4

Delivery

Pick up same-day or scheduled delivery. Kitted and packed to your receiving requirements.

Why Telecom OEMs Choose HFI

Enclosure fabrication partners who understand environmental sealing and thermal management are hard to find. Here’s why customers stay.

Weather-Tight Construction

Our enclosures consistently pass NEMA 3R and 4 testing. Continuous seam welding and gasket-compression design ensure seal integrity.

Consistent Runs

CNC repeatability means part 500 matches part 1. Your production line stays running.

Fast Turnaround

Local Chicago fabrication — same-day pickup available. No waiting on cross-country freight.

DFM Expertise

We help you design for lower cost without compromising quality. Gauge reductions, weld simplifications, material alternatives.

Ready to Discuss Your Telecom Enclosure Fabrication?

Send us your drawings, and we’ll respond with a quote. We fabricate for telecom OEMs of every size — from startups to major infrastructure providers.

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