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Powering Transportation and Energy Networks: High-Performance Composite Solutions for Critical Infrastructure Components

Date | 2026-01-28 08:23:57

In the construction of modern transportation corridors and energy networks, reliability, durability, and safety are non-negotiable requirements. Leveraging deep expertise in high-performance thermosetting composites such as BMC (Bulk Molding Compound) and SMC (Sheet Molding Compound), Wenzhou Jintong delivers proven component solutions for rail transit, power distribution, automotive, and communication infrastructure.

From automotive motor terminal blocks ensuring secure electrical connections, to railway return rail brackets and turnout components supporting safe train operation, and to signal enclosures and water & electricity meter boxes protecting critical equipment, our composite solutions are engineered to perform under harsh environmental and mechanical conditions—ensuring long-term infrastructure stability.

BMC components

1. Rail Transit Systems: Structural Safety Under Extreme Conditions

Rail transportation places exceptionally high demands on mechanical strength, flame retardancy, fatigue resistance, and environmental durability. Our BMC/SMC composite solutions are deeply integrated into rail systems:

Current Collection & Guidance Systems

Return rail brackets and turnout components are safety-critical structural parts. Our composite materials provide:

  • High mechanical strength and stiffness

  • Excellent dimensional stability

  • Outstanding weather resistance

These properties ensure consistent performance under long-term vibration, impact loads, and extreme climate variations.

Vehicle & Trackside Protection Components

Our composites are widely used in:

  • Interior and exterior rail vehicle panels

  • Electrical compartment covers

  • Trackside cable supports and cable trays

  • Signal enclosures and power distribution cabinets

These components are lightweight, corrosion-resistant, flame-retardant (compliant with EN 45545), and exhibit low smoke and low toxicity, significantly improving system safety and maintenance efficiency.

2. Power Distribution & Metering Systems: Silent Guardians of Grid Reliability

From backbone power networks to end-user metering, composite materials offer a superior alternative to traditional metals.

Cable Management & Power Enclosures

Cable supports and cable trays made from BMC/SMC provide:

  • Electrical insulation

  • Excellent corrosion resistance

  • Lightweight structure for easier installation

Compared with metal systems, they deliver longer service life with minimal maintenance.
Power enclosures, including outdoor ring main unit housings, achieve high ingress protection and weather resistance, safeguarding sensitive internal equipment.

Connection & Metering Units

Automotive motor terminal blocks require:

  • High electrical insulation

  • Thermal aging resistance

  • Strong pull-out strength

Our composite solutions meet these demands reliably.
For water and electricity meter boxes, which are essential public infrastructure components, BMC/SMC materials combine durability, insulation, anti-theft properties, and aesthetic stability, making them the preferred upgrade choice.

turnout components

3. Communication & Special Applications: Precision Meets Durability

In applications demanding both structural precision and environmental endurance, composite materials demonstrate unique value.

Satellite Antennas

Composite materials used in antenna reflectors and support structures offer:

  • High geometric accuracy

  • Lightweight yet high stiffness

  • Excellent resistance to temperature extremes and wind loads

These advantages ensure stable signal transmission under challenging outdoor conditions.

Extended Applications

Our material platforms can be flexibly adapted to additional power enclosure and special structural applications, supporting evolving infrastructure needs.

Why Our Composite Components Are Trusted Across Industries

Safety-First Reliability

Inherent flame retardancy (up to UL 94 V-0), high electrical insulation resistance, and excellent arc resistance elevate system safety at the material level.

Lightweight Yet Durable

The combination of high strength and low density enables significant weight reduction while delivering outstanding impact and fatigue resistance—far exceeding conventional materials.

All-Climate Protection

Superior resistance to corrosion, UV exposure, salt spray, chemicals, and a wide operating temperature range (-60 °C to 180 °C) ensures long service life with low or zero maintenance.

Design Freedom & Integrated Manufacturing

Complex structures can be molded in a single process, integrating multiple functions, reducing assembly steps, improving consistency, and lowering total system cost.

Sustainable Infrastructure Solution

Environmentally responsible manufacturing processes and long product life cycles contribute to low carbon footprints, supporting green and sustainable infrastructure development.

From rail vehicles in motion, to utility meter boxes across cities and rural areas; from satellite antennas carrying data, to cable supports and power enclosures securing energy transmission—we participate in shaping modern infrastructure through advanced composite materials.

We welcome collaboration with rail equipment manufacturers, power system suppliers, automotive OEMs, and communication integrators to jointly develop future-ready, high-performance component solutions.

About Us

Wenzhou Jintong Complete Electrical Co., Ltd. (Wenzhou Jintong) is a high-tech enterprise specializing in BMC/SMC thermosetting composite material development, precision mold design, and component molding.
We provide customized, high-reliability component solutions for rail transit, power & electrical systems, automotive, and communication industries.

composite infrastructure solutions