Engineered Cable Routing Architecture, Structural Molded Trays, and Strut Channel Support Systems Designed for Bangladesh's High-Humidity, Coastal, and High-Density RMG & Power Sectors.
Precision-manufactured molded series providing maximum mechanical loading capacity with lightweight structural rigidity, ideal for rapid deployment across high-stress industrial corridors.
Material: Marine Grade Al 6063-T6 | High Tenacity Corrosive Resistance for Coastal & Port Areas.
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Finish: Pre-Galvanized / HDG ASTM A123 | Reinforcing Stiffener Ribs for Long-Span Rigidity.
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Finish: Fireproof Electrostatic Powder Coat | BNBC & Accord Fire Compliance 90-120 Min Protection.
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System: High-Adhesion RAL Blue Coat | Dual Cable Segregation & High-Density Circuit Management.
Request Product Price & SpecsThe industrial landscape of Bangladesh is undergoing unprecedented expansion. Catalyzed by economic visions such as Vision 2041 and large-scale industrialization policies, the country has evolved from basic light manufacturing into a global hub for sophisticated textiles, heavy mechanical industries, pharmaceutical chemical complexes, and multi-gigawatt thermal and nuclear power projects.
Projects like the Bangabandhu Sheikh Mujib Shilpa Nagar (BSMSN) in Mirsarai, the Rooppur Nuclear Power Plant, deep-sea port terminals at Matarbari and Payra, alongside extensive economic zones managed by the Bangladesh Economic Zones Authority (BEZA), demand electrical support infrastructure engineered to withstand punishing mechanical and environmental stresses.
Electrical engineers and EPC contractors across Dhaka, Chittagong, Gazipur, and Narayanganj face severe engineering constraints: conventional light-duty perforated trays commonly fail prematurely due to micro-fracturing along bend lines, corrosion under extreme humidity, and thermal sagging from high cable clustering density.
Economic Zones Planned by BEZA demanding Heavy-Duty Certified Support Systems
Average Relative Humidity in Monsoon Seasons accelerating Galvanic Degradation
Certified Load Capacity of Molded Rib Trays on 3.0-meter Span Configurations
Factory Batch Mill-Certified Steel compliant with ASTM A123 & BS EN 61537
Chattogram coastal industrial belts and offshore logistics demand C4 to C5-M high-salinity corrosion defense. Our Hot-Dip Galvanized (HDG) coating thickness exceeds 85 microns, yielding 500+ hours in ASTM B117 neutral salt spray testing without red rust.
In compliance with BNBC (Bangladesh National Building Code) and RSC (RMG Sustainability Council) criteria, our fireproof powder-coated cable trays prevent flame escalation, maintaining circuit integrity under high thermal shocks.
Traditional trays bend and deflect under heavy armored power runs. Our high-load molded series integrates longitudinal cold-formed compression ribs, boosting flexural rigidity by up to 65% while reducing structural weight.
Direct from our Shanghai manufacturing plants to project sites in Bangladesh, every cable tray system is calibrated against international mechanical loading guidelines and national electrical safety mandates.
| Material / Treatment Finish | Standards Compliance | Coating / Surface Thickness | Tensile / Yield Strength | Optimized Bangladesh Operating Environment |
|---|---|---|---|---|
| Hot-Dip Galvanized (HDG) Q235B Steel | ASTM A123 / ISO 1461 / BS EN 61537 | 65 – 85 µm (450–600 g/m²) | Tensile: 370–500 MPa Yield: ≥235 MPa |
Chattogram Marine Port, Matarbari Power Hub, Outdoor Substation Yards |
| Molded Pre-Galvanized (GI) Sheet | ASTM A653 / JIS G3302 | 18 – 22 µm (Z275 Coating) | Tensile: 330–450 MPa Yield: ≥210 MPa |
Dry Indoor Commercial Facilities, Data Centers, Suspended Ceiling Runs |
| Fireproof Powder-Coated GI | DIN 4102-12 / BS 6387 (CWZ) | 60 – 100 µm Dry Film (DFT) | Impact: 50 kg·cm Cross-Cut: Class 0 |
RMG Textile Mills (Gazipur/Savar), Garment Dyeing Lines, High-Rise Risers |
| Marine Aluminium Alloy 6063-T6 | ASTM B221 / BS EN 755 | 10 – 15 µm Anodized / Passivated | Tensile: ≥205 MPa Yield: ≥170 MPa |
Chemical Processing Plants, Rooftop Solar Arrays, High-Chloride Coastal Corridors |
| Stainless Steel SS304 / SS316L | AISI / ASTM A240 | Native Chrome-Oxide Passive Film | Tensile: ≥520 MPa Yield: ≥205 MPa |
Pharma Cleanrooms (Tongi/Kaliakair), Acid Wet-Processing, Offshore Oil Terminals |
Electrical safety audits conducted under the RMG Sustainability Council (RSC) and International Accord enforce rigorous standards on mechanical containment integrity, cable insulation protection, and grounding continuity. Low-cost folded sheet trays often exhibit micro-burrs and sharp punched edges that vibrate against cable sheaths in heavy spinning mills, creating catastrophic ground fault hazards.
Our heavy duty molded series eliminates these vulnerabilities. Automated cold-stamp profiling rounds every edge and cable entry point to a minimum 1.5mm radius. Furthermore, integrated copper bonding jumper links maintain earth continuity under IEC 61537 Clause 11, keeping dynamic loop resistance strictly below 0.05 Ω across connected tray runs.
Bangladesh is segmented into four distinct seismic zones under the updated BNBC 2020 guidelines, with northeastern regions (Sylhet, Chittagong Hill Tracts, and greater Dhaka) falling into Zone 2 and Zone 3 categories with peak ground acceleration (PGA) up to 0.28g.
When routing multi-tier cable ladders or molded trays weighing upwards of 120 kg/m with armored cables, static hanging rods are susceptible to harmonic buckling during seismic excitation. Shanghai Qiongkai supplies fully coordinated anti-seismic bracing packages utilizing our 41×41 and 41×82 back-to-back strut channels, complete with seismic hinge connectors, rod stiffeners, and concrete heavy-wedge anchors calculated to eliminate lateral sway.
Eliminating domestic intermediary trading layers allows international EPC contractors and Bangladeshi developers to secure tier-1 quality control, mill certification traceability, and massive cost savings.
Shanghai Qiongkai Industry Co., Ltd. controls over 30,000 square meters of production floor space, 12 continuous cold roll-forming lines, and 60+ heavy-duty stamp presses in the Songjiang Port Science and Technology City.
Positioned adjacent to Shanghai Port (Yangshan / Waigaoqiao), shipments depart directly to Chattogram Port within an average 14–18 day maritime transit. We provide nested packaging solutions that cut ocean container volume by 40%.
Our international trade desk handles Bangladesh Bank Letter of Credit (L/C) compliance, PSI (Pre-Shipment Inspection) coordination with SGS/TÜV, accurate HS code documentation (7308.90), and localized BOQ take-offs.
Unlike regional distributors who broker odd-lot materials, Shanghai Qiongkai operates a complete upstream-to-downstream metallurgical supply chain. Steel coils are procured directly from top-tier primary mills (Baosteel, Shougang) with verifiable heat numbers and chemical analysis reports. Every production batch of our heavy-duty molded trays, perforated systems, and ladder runs undergoes rigorous thickness gauge verification, zinc adhesion cross-hatch checks, and destructive sample load tests.
Tailored cable management and support solutions optimized for the distinct structural, environmental, and thermal requirements of key Bangladeshi industrial sectors.
Deployed across Gazipur, Savar, and Narayanganj textile clusters. Flame-retardant powder-coated molded trays prevent flammable lint and textile fiber buildup. Smooth, rounded side flanges prevent wire insulation scraping during dynamic factory expansions.
For Rooppur, Payra, and utility-scale solar farms in Feni. Hot-Dip Galvanized cable ladder trays engineered to carry massive single-conductor 400kV and 132kV power runs with high short-circuit withstand clamping accessories.
Supplying API manufacturing complexes in Munshiganj and Kaliakair. Stainless Steel 304/316 wire basket and closed molded trays withstand daily CIP chemical wipe-downs, formaldehyde fumigation, and prevent microbiological colonization.
Matarbari, Mongla, and Chattogram terminal cranes and high-mast lighting grids require heavy-duty tenacity aluminium and 85µm+ HDG trays capable of resisting marine wave spray, salt crusting, and extreme tropical cyclones.
Overhead power distribution and telecommunication signaling containment for MRT Line 6, elevated expressways, and Gulshan corporate headquarters. Tested for smoke density, zero halogen, and seismic structural bracing.
Ghorashal-Polash Urea Fertilizer Factory and regional petrochemical refineries require acid-resistant epoxy powder finishes or custom FRP-lined heavy duty systems resistant to sulfur dioxide, ammonia fumes, and high ambient temperatures.
Explore our complete catalog of industrial-grade molded trays, ladder profiles, and heavy-load structural systems, engineered and certified for high-yield electrical installations.
Finish: Red RAL 3000 Fireproof Coating | Dedicated for Emergency Fire Circuits & Critical Alarm Routing.
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Finish: High-Visibility Safety Yellow RAL 1021 | Standard for High Voltage Cable Segregation.
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Finish: Electrostatic Grey RAL 7035 | Chemical Resistant Polymer Barrier on Heavy Zinc Substrate.
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Structure: Continuous Reinforced Stiffener Ribs | Designed for Multi-Layer Power Feeder Bundles.
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Dimension: 200mm Profile Width | High Tenacity Precision Stamped Fitments for Easy On-Site Assembly.
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Size: 200×100 mm Deep Flange | Optimized Cross-Sectional Area Maximizing Space & Budget Efficiency.
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Design: Welded / Swaged Rungs | Engineered for Maximum Heat Dissipation & High-Amp Power Distribution.
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Hybrid: Perforated Base with High-Load Rungs | Outstanding Ventilation + Total Sheath Drop Protection.
Request Product Price & SpecsIn-depth technical answers addressing commercial logistics, international certifications, compliance standards, and metallurgical selection for Bangladesh industrial projects.
Traditional perforated cable trays manufactured in regional workshops rely on simple hydraulic press brake bending, which introduces micro-stress cracks along the longitudinal 90-degree bend lines and results in structural sagging over spans greater than 1.5 to 2.0 meters under heavy cabling. Our Heavy Duty Molded Series incorporates continuous cold-roll stamped reinforcing ribs along both the base and sidewalls. This structural geometry enhances flexural strength and moment of inertia by up to 65%, allowing safe installation over 3.0 to 4.0-meter support spans without permanent deflection. Furthermore, the stamping dies create fully radiused, deburred edges, eliminating cable insulation abrasion hazards common during high-volume pulling in garment and industrial plants.
For coastal and marine operating zones classified as C4 to C5-M under ISO 12944, standard pre-galvanized (GI) coatings of 15–20 microns will degrade within 12 to 24 months due to chloride exposure. We supply heavy Hot-Dip Galvanized (HDG) cable trays processed after structural stamping and perforation in accordance with ASTM A123 and ISO 1461. Our HDG process guarantees an average zinc coating thickness of 65 to 85 microns (450 to 600 g/m²), creating a multi-layer metallurgical zinc-iron alloy barrier that provides self-healing galvanic protection. For extreme corrosive environments, such as fertilizer handling facilities or direct jetty installations, we offer Marine Grade 6063-T6 Aluminium or passivated Stainless Steel 316L systems.
We possess over 15 years of continuous experience fulfilling commercial contracts under Bangladesh Bank Letter of Credit (L/C) regulations. Our export operations team handles all mandatory documentation: detailed Mill Test Certificates (EN 10204 3.1 MTC) stating raw material chemical composition and mechanical yield testing, Country of Origin (CO) certificates, packing lists optimized for customs inspection, and freight documentation under correct HS Codes (such as 7308.90 for steel structures and cable management). We routinely coordinate third-party pre-shipment inspections (PSI) with international agencies such as SGS, Bureau Veritas, Intertek, and TÜV Rheinland prior to container sealing at our Shanghai factory.
Under BNBC 2020 Part 4 and international textile audit frameworks (including the RSC, Accord, and Alliance guidelines), electrical risers and critical distribution trunking must exhibit flame-retardant properties and minimize toxic fume emission. Our Fireproof Series is coated with electrostatic thermoset polyester-epoxy powders incorporating fire-intumescent additives. Tested according to DIN 4102-12 and BS 6387 CWZ parameters, the protective barrier expands under fire temperatures into an insulating char layer, insulating cables and preserving critical emergency circuit integrity for 90 to 120 minutes. Additionally, our trays feature pre-engineered earthing connection holes to ensure fault current dissipation in compliance with BNBC grounding standards.
Our manufacturing complex in Songjiang, Shanghai, is situated within 60 km of both Yangshan Deep-Water Port and Waigaoqiao Terminals. Typical production lead time for standard project orders (1 to 5 full 40ft HQ containers) ranges from 12 to 18 working days. Ocean freight transit from Shanghai directly to Chattogram Port takes approximately 14 to 18 days depending on the selected liner (such as Maersk, MSC, or COSCO). By implementing precision nested packaging—stacking smaller tray widths within larger profiles—we maximize container space utilization, minimizing per-meter sea freight costs and preventing transit vibration damage.
Yes. In addition to standard metric widths (50mm to 1000mm) and flange heights (50mm, 75mm, 100mm, 150mm), our in-house tooling workshop can engineer customized side channel profiles, tailored hole perforation configurations, and special return-flange geometries. For complex infrastructure spans such as river bridges, flyovers, or elevated factory mezzanines, our structural engineering team can calculate bespoke seismic bracing assemblies, cantilevers, and heavy-gauge Trapeze hanger brackets using our 41-series strut channel program.
Submit your Bill of Quantities (BOQ), CAD schematics, or load criteria. Our engineering team will return a complete commercial proposal, weight calculation analysis, and coating recommendation within 24 hours.
