Traffic Control Enclosure

Q: Do you ship bare metal boxes, or can you factory-install thermal and rack accessories?

We provide drop-in ready integration to save your field electricians hours of labor. While we can ship bare metal, the vast majority of our clients have us factory-install 19-inch EIA racks, thermostatically controlled axial fans, louver filters, copper grounding buses, and Sargent & Greenleaf latching systems. You receive a complete physical shell, ready for your controllers.

Q: Will your cabinets pass local municipal electrical inspections?

Yes. We operate as a UL 508A Certified panel shop. When required, we can apply the UL label directly to your enclosures, which provides immediate, unquestioned compliance for local municipal inspectors and completely eliminates red-tape delays on the job site.

Q: Should I specify 5052-H32 Aluminum or 316L Stainless Steel for my project?

For 80% of municipal and highway applications, an aluminum traffic control enclosure fabricated from 0.125” 5052-H32 is the ideal choice. It is lightweight, naturally oxidizes to form a protective layer, and handles heavy rain and snow flawlessly. However, if your intersection is located within 5 miles of a coastline (exposed to salt spray) or in an industrial zone with corrosive airborne chemicals, we strongly mandate upgrading to a NEMA 4X 316L stainless steel enclosure for maximum lifecycle.

Traffic Control Enclosures Engineered to Pass and Built to Survive

Your ITS network is only as reliable as the physical shell protecting it. Every ShincoFab traffic control enclosure is fabricated strictly to federal, state, and municipal codes, ensuring your sensitive components survive extreme weather, vandalism, and electromagnetic interference.

NEMA Environmental Ratings

We don’t just build boxes, we build environmental shields. Choose the exact rating your project dictates:

NEMA 3R: Protection against falling dirt, rain, sleet, and snow. Ideal for standard municipal crosswalks and highway monitoring.
NEMA 4: Watertight and dust-tight. Capable of withstanding hose-directed water and severe dust storms in arid environments.
NEMA 4X (Coastal & Corrosive Environments): Specify a stainless steel traffic control cabinet fabricated from 316L to provide ultimate protection against saltwater salt spray, corrosive chemicals, and extreme humidity.

State & Federal Specifications (Drop-In Ready)

Our engineering team is fluent in intelligent transportation system (ITS) standards. We manufacture to exact dimensional and functional requirements for:

Caltrans Cabinets: Models 332, 334, 336A, and 336S.
NEMA Standards: TS-1 and TS-2 traffic controller assemblies.
TEES: Fully compliant with Transportation Electrical Equipment Specifications.

Material & Fabrication Tolerances

Weatherproofing starts at the material level and ends at the weld.

Marine-Grade Aluminum: 0.125-inch thick 5052-H32 aluminum. Lightweight, naturally corrosion-resistant, and ideal for pole-mounted applications.
Heavy-Duty Steel: 14-gauge or 12-gauge cold-rolled carbon steel, finished with a galvanized zinc topcoat and UV-resistant polyester powder coating for maximum lifespan.
Continuous TIG Welding: We do not use spot welds on exterior seams. All external seams are continuously TIG welded and ground smooth to guarantee watertight integrity (NEMA 4/4X compliance) and eliminate structural weak points.

Stop Paying Union Electricians to Drill Holes.

Smart procurement isn’t just about the unit price of the metal, it’s about the Total Cost of Ownership (TCO). Every hour your field technicians spend fabricating brackets or drilling access holes on the tailgate of their truck eats into your project margins. A ShincoFab cabinet is engineered to eliminate this waste. It arrives drop-in ready to wire the second it hits the concrete pad.

Pre-Kitted Controller Integration

We eliminate the need for aftermarket brackets. Our enclosures are dimensionally engineered and pre-punched to perfectly house industry-standard ITS controllers from Econolite and Siemens right out of the box. Drop it in, bolt it down, and start wiring.

Electrician-Optimized Cable Management

We design the interior layout based on direct feedback from field electricians. Factory-installed Unistrut channels and precisely positioned copper grounding lugs ensure heavy-gauge wiring can be routed quickly, cleanly, and in strict compliance with NEC and local municipal codes.

Built for the 5-Year Maintenance Call

A cabinet fails if a technician can’t open it after three harsh winters. We eliminate seized doors and swollen locks by using:

Continuous Stainless Steel Piano Hinges: Prevents door sagging over time.
3-Point Sargent & Greenleaf Latching Systems: Industry-leading security with tool-less, smooth operation.
Slide-Out EIA Drawers: Allows immediate access to sensitive diagnostic equipment without requiring technicians to use tools or contort their bodies.

Protecting Your Sensitive ITS Network from Heat, Dust, and Downpours.

As the backbone of smart city traffic infrastructure, modern traffic signal cabinets must house traffic signal electronics, edge-computing processors, fiber optic transceivers, and V2X modules. These components run hot. An enclosure without proper thermal dynamics will cause hardware to throttle or fry, resulting in an intersection blackout. We engineer our cabinets to passively and actively maintain safe operating temperatures in the most brutal climates.

Active & Passive Cooling Architecture

We keep your electronics well below their thermal thresholds so your network stays online 24/7.

Precision Airflow: Equipped with thermostatically controlled axial fans that engage only when needed, maximizing fan lifespan.
Filtered Ventilation: Stamped louvered vents feature easily replaceable dust filters to prevent debris accumulation on sensitive microprocessors.
Extreme Climate Options: For desert installations or high-density hardware setups, we offer custom cutouts and factory integration of ruggedized closed-loop AC units.

Weather Deflection & Solar Load Reduction

Keeping the water out is only half the battle. We also engineer the exterior geometry to fight the sun.

Double-Wall Sun Shields: Optional top, side, and door sun shields create a thermal barrier, actively dissipating heat and reducing the internal solar load by up to 20%.
Sloped Rain Hoods: Prevents standing water on the top of the cabinet, eliminating a primary cause of long-term metal corrosion and water ingress.
Closed-Cell Neoprene Gaskets: Cheap rubber door seals degrade under UV light and heat. We use continuously bonded, closed-cell neoprene gaskets that maintain their memory and ensure a tight NEMA-compliant seal for years.

The Exact Form Factor for Every School Zone and Highway Interchange

Site constraints dictate your enclosure choice. Whether you are routing massive conduit bundles through a concrete pad or securing a small flasher unit to a mast arm, we fabricate the exact footprint and mounting hardware your deployment requires.

Comprehensive Cabinet Sizes (NEMA & Custom)

Stop trying to cram massive ITS assemblies into undersized boxes. We manufacture the complete spectrum of industry-standard footprints:

Standard NEMA Sizes: Type G, M, P, R, and Super P (Size 8), available in single door traffic control cabinet or double door traffic control enclosure configurations.
Custom Fabrication: Need extra depth to house an oversized Battery Backup System (BBS)? Our engineering team will design and fabricate custom dimensions while maintaining full NEMA 3R/4/4X compliance.

Site-Specific Mounting Configurations

Every cabinet is structurally reinforced at the specific stress points dictated by its mounting style:

Pad-Mount (Base Mount): The standard pad mount traffic enclosure features an open-bottom design with reinforced internal anchor flanges for seamless conduit entry over concrete pads.
Pole & Mast-Arm Mount: Our pole mounted traffic signal enclosure is equipped with heavy-gauge rear reinforcement plates and compatible with standard U-bolt hardware to eliminate twisting or shearing under high wind loads.
Pedestal & Wall-Mount: Compact, rigid solutions engineered for constrained urban streetscapes.

Dedicated Police Panel Access Door

During an accident or emergency, law enforcement needs instant control over intersection signaling. Our traffic cabinets feature a strategically isolated Police Access Door.

This dedicated sub-door allows authorized personnel to access the manual intersection override switches and flash controls without opening the main cabinet door. This critical feature protects the sensitive main controller from extreme weather exposure and prevents unauthorized tampering.

Predictable Precision. Zero Supply Chain Surprises.

When you need to source traffic control enclosures at scale, your reputation is on the line. You cannot afford dimensional variations or delayed deliveries. As a premier traffic control enclosure manufacturer in China, We manufacture strictly within an ISO 9001-certified environment, combining heavy-duty automated machinery with relentless quality checkpoints to ensure Cabinet #500 is exactly as precise as Cabinet #1.

Advanced CNC Fabrication & Tight Tolerances

We don’t rely on guesswork. Our shop floor is equipped to handle high-volume municipal rollouts with aerospace-level precision:

Trumpf Laser Cutting: Delivering ultra-clean, burr-free edges with cut tolerances held to a strict +/- 0.05mm.
Automated CNC Press Brakes: Our multi-axis robotic bending cells ensure 100% geometric repeatability, guaranteeing that every EIA rack fits perfectly without forcing or field modifications.
High-Speed CNC Punching: Rapidly creating flawless knockouts, ventilation louvers, and complex hole patterns for maximum scalability.

Industrial Finishes Engineered to Outlast the Elements

A traffic cabinet’s finish is its first line of defense. We don’t outsource this critical step. Our in-house surface treatment ensures maximum adhesion and longevity.

Multi-Stage Pretreatment: Every enclosure is fully degreased and phosphate-washed prior to coating.
UV-Stable Powder Coating: Applied with architectural-grade polyester powder (e.g., Fed-Spec Green, DOT Silver, or custom RAL colors) baked for maximum durability.
Vandal-Resistant Options: Optional anti-graffiti clear coats available to reduce municipal maintenance costs in high-traffic urban zones.

The Quality Control Checkpoint (ISO 9001 & PPAP)

We do not ship on a promise, we ship on documented proof.

First Article Inspection (FAI): We provide comprehensive FAI reports prior to full production runs, giving your engineering team absolute sign-off authority.
Salt-Spray Tested: Finishes are tested to ASTM B117 standards to guarantee resistance against coastal salt fog and winter road de-icing chemicals.
100% Watertight Verification: Every continuously welded NEMA 4/4X cabinet undergoes stringent leak inspection before it leaves our dock.

Frequently Asked Questions

You have strict municipal codes to meet and unforgiving project deadlines. We don’t hide our capabilities or lead times. Here are the straight answers to the most common engineering and supply chain questions we receive from ITS professionals.

If I require custom dimensions, does the cabinet still maintain its NEMA 3R or 4X rating?

Absolutely. We do not just stretch a 3D model. We engineer the modifications. Every custom dimension is fabricated strictly to NEMA design principles. This means your cabinet will feature proper drip lips, continuously TIG-welded seams, and closed-cell neoprene gaskets. Your custom enclosure will perform to the exact environmental standards as our off-the-shelf units.

Do you ship bare metal boxes, or can you factory-install thermal and rack accessories?

We provide drop-in ready integration to save your field electricians hours of labor. While we can ship bare metal, the vast majority of our clients have us factory-install 19-inch EIA racks, thermostatically controlled axial fans, louver filters, copper grounding buses, and Sargent & Greenleaf latching systems. You receive a complete physical shell, ready for your controllers.

Will your cabinets pass local municipal electrical inspections?

Yes. We operate as a UL 508A Certified panel shop. When required, we can apply the UL label directly to your enclosures, which provides immediate, unquestioned compliance for local municipal inspectors and completely eliminates red-tape delays on the job site.

Should I specify 5052-H32 Aluminum or 316L Stainless Steel for my project?

For 80% of municipal and highway applications, an aluminum traffic control enclosure fabricated from 0.125” 5052-H32 is the ideal choice. It is lightweight, naturally oxidizes to form a protective layer, and handles heavy rain and snow flawlessly. However, if your intersection is located within 5 miles of a coastline (exposed to salt spray) or in an industrial zone with corrosive airborne chemicals, we strongly mandate upgrading to a NEMA 4X 316L stainless steel enclosure for maximum lifecycle.

Skip the Sales Pitch. Get Your Traffic Enclosure Quote.

You don’t have time for scripted sales calls or generic auto-replies. You need accurate pricing and firm lead times to move your municipal project forward. Submit your specifications directly to our engineering team, and we’ll get right to work.

Fabrication

Value-Added

3D Printing

Material

Sheet Metal Parts

Thermal & Electrical

Sheet Metal Enclosure

Energy & Infrastructure