Factory Flagship 100x50 mm & Heavy-Duty Series
High-precision cold roll-formed, pre-galvanized, hot-dip galvanized, and custom powder-coated cable trays manufactured in full accordance with IEC 61537 and NEMA VE-1 international benchmarks.
Enterprise Capacity & Global Supply Chain Metrics
Established in 2005 in Songjiang, Shanghai, Shanghai Qiongkai Industry Co., Ltd. integrates raw metallurgical processing, continuous automated profiling, robotic welding, and multimodal containerized freight.
Tier-1 Steel Mill Procurement
We source prime hot-rolled and pre-galvanized strip steel exclusively from Baosteel, Shougang, and Ansteel, guaranteeing high tensile yield strengths (Q235B, Q355B) and uniform zinc layer adhesion prior to cold forming.
Micrometer Quality Assurance
Every batch undergoes automated eddy-current thickness gauging, cross-hatch paint adhesion testing (ISO 2409), continuous zinc salt spray testing (ASTM B117), and three-point structural beam loading certification.
Multimodal Port Proximity
Located in the Songjiang Port Science and Technology City, our dispatch yards sit within 45 minutes of Shanghai Yangshan Deepwater Port and Waigaoqiao Terminal, securing compressed ocean transit lead times for international EPC buyers.
Engineering Anatomy of 100 X 50 Mm Cable Trays
The 100 mm width by 50 mm flange height (flange depth) profile represents the foundational cross-section in global raceway architectures. Below is the structural calculation and electrical performance baseline.
Cross-Sectional Usable Area
With an interior footprint of 100 mm × 50 mm, the theoretical volume provides 5,000 mm² of gross raceway space. Conforming to NEC Article 392 and IEC 61537, a 40% to 50% fill ratio provides optimal thermal heat dissipation for up to 48 Cat6A data cables or 6 multi-conductor control cables.
Cold-Formed Mechanical Rigidity
Our continuous roll-forming lines integrate longitudinal stiffening swages (continuous return flanges and bottom embossed ribs). This patented profile geometry elevates the moment of inertia (Ix), reducing structural center-span deflection under 1/200th of the span distance under full SWL (Safe Working Load).
Ventilation & Derating Factor
Perforated patterns engineered with staggered oblong slots (7×25 mm and 9×25 mm) achieve over 32% free open area. This satisfies IEC 61537 requirements for ambient air circulation, eliminating the need to apply aggressive conductor ampacity derating factors.
| Nominal Dimensions (W × H) | Material Thickness Gauge | Standard Length | Typical Safe Working Load (1.5m Span) | Recommended Finishes | Primary Sector Application |
|---|---|---|---|---|---|
| 100 × 50 mm (Perforated) | 1.0 mm / 1.2 mm / 1.5 mm | 2000 mm / 3000 mm | 75 kg/m - 110 kg/m | PG / HDG / Powder Coat | Commercial Risers & Telecom Secondary |
| 100 × 50 mm (Wire Mesh Basket) | 3.5 mm / 4.0 mm / 5.0 mm Rod | 3000 mm | 45 kg/m - 65 kg/m | EG / SS304 / SS316L | Data Halls, Underfloor & Overhead Racks |
| 100 × 50 mm (Solid Bottom Trunking) | 1.2 mm / 1.5 mm / 2.0 mm | 2440 mm / 3000 mm | 90 kg/m - 135 kg/m | HDG / Epoxy Coated | Airport Terminals & EMC Shielded Runs |
| 100 × 50 mm (Mini-Ladder Type) | 1.5 mm / 2.0 mm | 3000 mm / 6000 mm | 120 kg/m - 160 kg/m | HDG / Marine Grade Alum | Industrial Equipment Skids & Photovoltaics |
Target Engineering Applications Across Key Sectors
From hyper-scale cloud data centers in Southeast Asia to critical transit terminals in Europe, the 100 x 50 mm form factor serves as the industry's reliable workhorse for localized distribution.
Hyperscale Data Center White Space
Deployed as overhead server rack cascades, our 100x50 mm electro-galvanized and powder-coated (RAL 9005 black or RAL 5015 blue) wire mesh and perforated trays isolate Cat6A/fiber patch cords from main 600 mm power feeder busways, minimizing cross-talk interference.
Cleanroom Pharma & Food Processing
Fabricated in AISI 304 and 316L stainless steel with passivated electro-polished surfaces, 100x50 mm open wire trays eliminate dust stagnation crevices and withstand routine chemical washdowns with high-pressure caustic detergents.
Solar Inverter Strings & Battery BESS
In utility-scale PV plants and containerized battery energy storage systems (BESS), 100x50 mm hot-dip galvanized perforated trays with return-edge snap covers protect DC string cabling from prolonged UV degradation, thermal cycling, and rodent abrasion.
Heavy Machinery OEM & Skids
Packaged industrial machinery, modular LNG skid packages, and automated factory robotics utilize 100x50 mm ribbed trays mounted directly to 41x41 mm strut channels to direct motor sensor feedback loops and hydraulic control valves.
Corrosion Protection & Life-Cycle Durability
Specifying the correct surface finish ensures asset durability across ISO 12944 atmospheric corrosivity categories C1 to CX. Our in-house metallurgical testing guarantees expected working service lives up to 30+ years.
Hot-Dip Galvanizing (HDG)
Processed under ASTM A123 / ISO 1461, finished trays are fully immersed in molten zinc at 450°C. This forms a metallurgical iron-zinc alloy layer with coating thicknesses averaging 65 µm to 85 µm (500-600 g/m²), delivering sacrificial cathodic protection in harsh outdoor C3 and C4 coastal regimes.
Pre-Galvanized Mill Finish (PG)
Fabricated from continuous hot-dip zinc-coated coil sheet per EN 10346 (Z180 to Z275 coatings, 12-20 µm). PG offers a smooth, cost-efficient aesthetic ideal for climate-controlled indoor C1 and C2 applications such as commercial ceiling plenums, office risers, and department stores.
Stainless Steel (SS304 / SS316L)
Formed from low-carbon austenitic stainless steel with minimum 16% chromium and 10% nickel (plus 2% molybdenum for SS316L). Fully passivated to ASTM A380, our stainless 100x50 mm raceways provide absolute immunity against chloride pitting in offshore marine oil & gas and coastal desalination plants.
Technical Roadmap & Future Perspectives
The cable containment sector is transitioning from passive metallic channels to intelligent, low-embodied-carbon structural assets. Explore how Qiongkai leads raceway innovation.
Integrated IoT & Thermal Monitoring
Our pilot smart trays incorporate designated clip grooves for distributed fiber-optic temperature sensors (DTS). This provides facility managers with real-time AI thermographic heat mapping along 100x50 mm raceways, preventing electrical overheating incidents before insulation failure occurs.
Decarbonized EPD "Green Steel" Coils
Committed to global Net Zero initiatives, Qiongkai offers Environmental Product Declaration (EPD) verified cable trays manufactured from electric arc furnace (EAF) scrap steel, reducing cradle-to-gate embodied carbon footprints by up to 58% compared to blast-furnace routes.
Boltless Snap-Fit Quick Couplers
Addressing mounting site labor costs, our R&D team engineered integral spring-clamp splice plates that snap directly into the 100x50 mm tray side profile without requiring nuts and bolts. This cuts overhead installation time by up to 45% while maintaining electrical ground bonding continuity.
China Factory Efficiency: Scale, Speed & Total Cost Advantage
Deploying high-volume industrial projects on budget demands predictable delivery schedules, zero material shortages, and robust shipping optimization. Here is how our Shanghai hub safeguards procurement timelines.
Hedging Raw Material Volatility
With 10,000+ metric tons of cold-rolled coil routinely warehoused in Shanghai, our procurement protects project pricing from global spot steel price spikes, allowing long-term fixed FOB/CIF rate lockups for multi-year EPC milestones.
Intelligent Nesting & High-Cube Packing
Our 100x50 mm tray side-rail geometries allow tight vertical nesting during ocean packaging. By engineering matching telescopic bundles, container volumetric efficiency exceeds 92%, substantially cutting ocean freight cost per meter.
BIM & Full MEP Coordination Submittals
We supply precise Revit / AutoCAD 3D families (LOD 300 to LOD 400) for all 100x50 mm trays, reducing on-site clashing between electrical raceways, HVAC ducts, and fire sprinkler plumbing prior to container departure.
7-Day Turnaround for Custom Stampings
With an in-house tooling and die workshop, custom non-standard width variations, specialized perforation slot configurations, or project-specific company logo punching can be prototyped and rolled in as fast as 7 working days.
Specialty Trays, FRP, Stainless & Modular Framing
Discover our complementary portfolio of SS304/SS316 perforated containment, reinforced ribbed profiles, industrial ladders, and structural conduit solutions engineered for unified turnkey procurement.
Seismic Bracing & Turnkey Engineering Support
Cable containment reliability depends on complete structural coordination. We engineer every 100x50 mm pathway alongside tested seismic brackets, strut channels, and compliant mounting accessories.
ASCE 7-22 Seismic Certified Brackets
For installations in high seismic zones, our 100x50 mm raceways integrate rigid and cable-stayed seismic bracing assemblies. Tested under static and dynamic cyclic loading, our supports guarantee electrical containment continuity during earthquake events.
Full Mill Test Submittals (MTC 3.1)
Every export shipment is backed by EN 10204 Type 3.1 Mill Test Certificates verifying steel melt analysis, carbon content, mechanical yield limits, tensile elongation, and zinc coating thickness measured via magnetic induction gauges.
Dedicated Project Account Engineers
You work directly with bilingual electrical and structural engineers. From reviewing complex Bill of Quantities (BOQ) takeoffs to designing custom fittings (bends, tees, reducers, and risers), your orders avoid costly miscommunications.
Frequently Asked Questions (Technical & Procurement FAQ)
Detailed answers addressing load calculations, finish selection, international standard compliance, and container logistics for 100 x 50 mm cable tray systems.
Under IEC 61537 Type I/II testing with a support span of 1.5 meters, a standard 1.2 mm thick 100x50 mm perforated tray reliably supports 80 to 95 kg/linear meter with a safety factor of 1.7. On a 2.0-meter support distance, maximum recommended load capacity is 50 to 65 kg/m. For heavy cable runs, selecting our reinforced molded design or upgrading gauge thickness to 1.5 mm increases load capability by up to 35%.
Pre-galvanized (PG) steel features a zinc layer of 12-20 µm applied prior to fabrication, making it the most cost-effective solution for climate-controlled indoor environments (dry offices, data centers, clean ceiling voids). Hot-dip galvanizing (HDG) immerses the fully punched and formed tray into molten zinc, yielding a 65-85 µm thick metallurgical barrier over all cut edges and perforations. Specify HDG for outdoor industrial sites, coastal areas, wastewater plants, and humid tunnels.
Yes. We operate fully automated electrostatic powder-coating lines utilizing outdoor-grade polyester and epoxy powders. Colors such as RAL 1080 Yellow, RAL 5015 Blue, RAL 3020 Red, and RAL 9005 Black are widely applied for system circuit segregation (e.g., yellow for fiber, red for emergency/fire circuits, blue for high-speed data, and black for industrial automation).
A standard shielded Cat6A cable has an average outer diameter of approximately 7.5 mm, occupying an individual cross-sectional area of roughly 44.2 mm². In a 100x50 mm tray (5,000 mm² gross interior area), the recommended 40% maximum fill rule (per ANSI/TIA-569 and NEC Article 392) allocates 2,000 mm² of usable space. This allows comfortable routing for 45 to 50 cables without risking internal heat entrapment or packet attenuation.
All export orders are delivered with EN 10204 Type 3.1 Mill Test Certificates confirming chemical composition and mechanical stress limits, ISO 9001:2015 quality management compliance, CE declaration of conformity, and IEC 61537 / NEMA VE-1 load-deflection test reports. We welcome third-party pre-shipment inspections from SGS, BV, or TÜV prior to container sealing.
Trays are packaged using high-tensile steel strapping over plastic corner edge protectors. Each nested bundle is wrapped in heavy-gauge VCI (Vapor Corrosion Inhibitor) waterproof film to prevent white rust formation caused by marine condensation. Bundles sit on fumigated timber or tubular steel skids configured for rapid container unloading via standard forklift tines.