150mm perforated cable tray

Summary

GI Perforated Cable Tray — The Balanced Solution for Corrosion Protection, Heat Dissipation & Long-Term Value

When your project demands a single cable management system that resists corrosion, dissipates heat, protects cables, and respects budget — the Bendin Industrial GI Perforated Cable Tray is engineered to deliver on all four.

Built from cold-rolled low-carbon steel and finished with a hot-dip galvanized coating to ASTM A123 and EN ISO 1461, the tray achieves a zinc layer thickness of ≥65µm, providing a corrosion-resistant service life of over 20 years in medium-corrosion environments. The precision-perforated base — with a 20% to 35% open area ratio — enables continuous natural convection, achieving 30% to 50% better heat dissipation than solid-bottom alternatives. This means lower cable operating temperatures, slower insulation aging, and sustained current-carrying capacity across the full installation lifespan.

The solid sidewalls provide physical protection against dust and debris, retain cables securely within the tray, and contribute partial electromagnetic shielding — a level of protection that open ladder designs simply cannot offer. With same-material galvanized accessories ensuring electrical continuity and uniform rust protection across every joint, the GI Perforated Cable Tray is the definitive balanced choice for light industrial plants, damp workshops, underground parking, commercial riser shafts, and protected outdoor installations.

Details

Technical Specifications at a Glance

Description

A Tray Engineered for Real-World Balance

Cable management rarely presents a single, simple challenge. A real installation may face humidity from the environment, heat from dense cable bundles, physical risk from overhead activity, and budget constraints — all at once. The GI Perforated Cable Tray from Bendin Industrial is designed precisely for this intersection of demands, providing a single solution where compromise is not an option.

Corrosion Protection That Lasts

The foundation of the tray's durability lies in its hot-dip galvanized finish. Each section is fully immersed in molten zinc at approximately 450°C, forming a metallurgically bonded zinc-iron alloy layer that cannot peel, flake, or delaminate under bending or impact. With a minimum coating thickness of 65µm on structural sections, the tray achieves a corrosion-free service life exceeding 20 years in environments up to ISO 12944 C3 classification — continuously damp workshops, condensation-prone service floors, underground parking structures, and protected outdoor areas under canopies or eaves. The zinc coating corrodes sacrificially, meaning it protects the underlying steel even at cut edges, punched holes, and weld seams.

Heat Dissipation by Design, Not by Accident

Heat is the silent enemy of cable performance. For every 10°C rise above a cable's rated operating temperature, its insulation life can be cut in half. The perforated base of this tray tackles this issue directly. Staggered holes distributed across the base plane create an open area of 20% to 35%, enabling passive natural convection — cooler air enters from below, absorbs heat from the cable surfaces, rises, and exits continuously. The result is a measured 30% to 50% improvement in heat dissipation compared to solid-bottom trays of identical dimensions. Lower cable temperatures mean preserved current-carrying capacity, extended insulation life, and reduced long-term replacement costs.

Strength Without Excess Weight

Perforation strategically removes material where it is not structurally critical, reducing overall tray weight without compromising load-bearing capacity. Sidewall-to-base joints are continuously seam-welded, not intermittently tacked, ensuring full structural integrity and load transfer along the entire section length. Splice plates, when properly bolted, maintain the full rated load capacity across joints. Available in steel thicknesses from 1.0mm to 2.0mm and side rail heights from 50mm to 250mm, the system scales from light-duty control and signal cable runs to heavy-duty power feeder distribution.

Protection Beyond Corrosion Resistance

The enclosed sidewalls are not simply structural — they perform multiple protective functions. They shield cables from small falling objects, tools, and debris, providing a level of physical protection that open ladder designs lack entirely. They retain cables within the tray boundaries during installation and throughout operational life, preventing sagging or displacement. They contribute partial electromagnetic shielding by creating a metallic enclosure around the cable bundle, reducing cross-talk and external interference in non-critical applications. And they provide a clearly defined, visually organized cable pathway that simplifies inspection, maintenance, and future circuit additions.

A Fully Integrated, Corrosion-Protected System

A galvanized tray connected with non-galvanized couplers, or supported by uncoated brackets, introduces weak points where galvanic corrosion can begin. Bendin Industrial eliminates this vulnerability by manufacturing every system accessory — bends, tees, crosses, reducers, splice plates, cantilever brackets, trapeze hangers, and grounding straps — from the same base material and through the same hot-dip galvanizing process. The result is uniform corrosion potential across every installed component, full electrical continuity for equipment grounding, and consistent appearance throughout the cable pathway.

Where This Tray Excels — And Where It Does Not

The GI Perforated Cable Tray is the correct specification for light industrial plants, food and beverage processing areas, textile and paper mills, underground parking garages, commercial building riser shafts, and protected outdoor cable runs. These are environments where humidity, occasional moisture, or mild chemical presence demand reliable corrosion resistance, but where full stainless steel would represent unnecessary overspend.

The tray is not intended for environments with concentrated acid or alkali fumes — such as chemical plant pickling or electroplating shops — where 316 stainless steel or specialized coated systems are mandated. It is not engineered for installations requiring certified high-level electromagnetic shielding, such as TEMPEST-rated facilities, which demand solid-bottom conductive enclosures. And in permanently dry, cost-sensitive indoor environments with zero corrosion risk, electro-galvanized or powder-coated alternatives may be an appropriate consideration.

Order With Confidence

Every GI Perforated Cable Tray order from Bendin Industrial is delivered with full supporting documentation: base material mill certificates confirming Q235 grade compliance, zinc coating thickness test reports demonstrating ≥65µm coverage, and dimensional conformance reports verifying tolerance compliance. Load-span tables for every width, height, thickness, and support spacing combination are available to support accurate specification. Our pre-sales technical team is ready to review your project's environmental conditions, calculate total cable loads for correct load class selection, and verify full accessory compatibility — so the system that arrives on site is exactly the system your design requires.

Hebei Bendin Industrial Technology Co., Ltd. established in 2021(BDINDUSTRYIAL), has become a leading global manufacturer and exporter of premium cable tray solutions, backed by over 30 years of industry expertise in designing and producing cable trays, Workshop safety fence, Robot fence, Cable tray, electric fence with a strong reputation for excellence in quality, innovation, and customer-centric service.

We has a professional team of 190+ employees, including management and technical specialists, skilled production staff proficient in operating advanced machines, and sales team, all dedicated to delivering high-performance products that meet diverse project requirements worldwide.

Operating a state-of-the-art 15,000㎡ facility equipped with over 80 advanced machines such as fully automatic wire mesh welders, laser cutting machines, PE coating lines, and electrostatic coating lines.BDINDUSTRYIAL ensures precision engineering, standardized production, and rapid

Customization for projects of any scale.

Committed to quality at every stage from raw material selection to final inspection, the company holds certifications like ISO 9001 and CE, along with multiple national and international patents (1 utility model and 4 design patents, including 1 EU design patent), and protects its brand with 9 domestic trademarks and 1 EU trademark.

BDINDUSTRYIAL’s diverse product portfolio covers metal fences, Workshop safety fence, Robot fence, Cable tray, electric fence and so on.Serving clients in over 70 countries across North America, Europe, the Middle East, Southeast Asia.

Guided by the belief that "Customers are the heart of our business," BDINDUSTRYIAL strives to exceed expectations through uncompromising product quality, competitive pricing, timely delivery, and dedicated after-sales service. The company welcomes partnerships with distributors, contractors, and project owners worldwide to create innovative and reliable cable trays solutions that enhance safety and aesthetics, combining technical expertise, advanced manufacturing capabilities, and a customer-driven approach to meet global cable tray needs.