Reliable manufacturers of fireproof trough-type cable trays include Cubis Systems, TONGZHOU Machinery, Guangdong Tianlai Steel Pipe Cable Tray Co., Ltd., and Armorduct Systems.

Key Manufacturers and Products

1. Cubis Systems – PROtrough Cubis Systems offers the PROtrough, a lightweight, fire-retardant cable trough system designed for rail, light rail, and power markets. It meets major fire retardancy specifications for tunnels and stations, providing a modern alternative to traditional concrete troughs. PROtrough features easy slide-and-drop connectivity, one-click interlocking covers, and natural drainage slots. Its lightweight design (under 20 kg) allows single-person installation, enhancing safety and compliance with manual handling regulations . 2. TONGZHOU Machinery (China) TONGZHOU Machinery manufactures a wide range of cable trays, including wire mesh, perforated, channel, ladder, and trough types. Their fireproof trough trays are made from steel, stainless steel, aluminum, or FRP, with spray-coated surfaces for corrosion and fire resistance. They offer customizable sizes and shapes, OEM/ODM services, and support small trial orders, making them suitable for industrial, commercial, and residential projects . 3. Guangdong Tianlai Steel Pipe Cable Tray Co., Ltd. This company specializes in enclosed fireproof trough-type cable trays with high protection ratings against dust, moisture, oil, and mechanical damage. Their trays provide flame retardancy for 30 minutes to 2 hours, suitable for critical areas like electrical distribution rooms, tunnels, hospitals, and high-rise buildings. They offer galvanized, hot-dip galvanized, and powder-coated substrates, with extensive customization and project support, proven in large-scale venues like the 2008 Beijing Olympics and 2010 Guangzhou Asian Games . 4. Armorduct Systems (UK) Armorduct Systems manufactures steel cable management systems, including trays, trunking, and baskets, with bespoke solutions designed in-house. They provide both standard and customized fireproof cable tray systems suitable for industrial and commercial applications .

Considerations When Selecting Fireproof Trough Cable Trays

• Fire Ratings: Verify compliance with standards such as ASTM E814, BS 476, or GB 50016, and check flame retardancy certifications like UL 94 or LSZH .
• Material: FRP, stainless steel, and galvanized steel offer corrosion resistance and durability in harsh environments .
• Load Capacity: Ensure the tray can support cables under normal and fire conditions.
• Customization: Evaluate manufacturer capabilities for tailored sizes, shapes, and installation requirements.
• Compliance and Quality: Look for ISO 9001 certification and adherence to NEC Article 392 or local fire codes .
• Installation and Maintenance: Lightweight, modular designs simplify installation and reduce long-term maintenance costs. These manufacturers provide a range of fireproof trough-type cable trays suitable for industrial, commercial, and infrastructure projects, with options for customization, high fire resistance, and compliance with international standards.