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U-strunt channel cable ladder with heavy duty Suppliers
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U-strunt channel cable ladder with heavy duty
U-strunt channel cable ladder with heavy duty

U-strunt channel cable ladder with heavy duty

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Product introduction
U-CHANNEL · HEAVY DUTY · CABLE LADDER
U-strunt channel cable ladder with heavy duty
U-strunt channel cable ladder with heavy duty is a robust structural support system engineered for demanding cable management applications where high load capacity and long-span performance are essential. Manufactured from hot-rolled or cold-formed steel (Q235B / Q355B) with hot-dip galvanized finish (≥85μm), the ladder features U-shaped strunt channels as side rails, providing enhanced structural rigidity compared to standard angle or flat bar designs. The heavy-duty configuration utilizes thicker material gauges (2.5mm–4.0mm) and reinforced rung connections to support substantial cable loads across spans up to 6 meters. This system is designed for industrial power distribution, substation cable routing, and infrastructure projects requiring durable, maintenance-free cable support with 25-year service life expectancy.
CORE ADVANTAGES
U-channel structural rigidity
U-shaped strunt channels provide superior bending resistance, allowing longer spans (up to 6m) with minimal deflection under heavy cable loads.
Heavy-duty load capacity
Reinforced rung connections and 2.5-4.0mm material thickness support cable loads exceeding 200kg per meter of tray.
Hot-dip galvanized protection
85μm+ zinc coating provides sacrificial corrosion protection for outdoor, industrial, and coastal installations.
Quick assembly design
Pre-punched connection points and splice kits enable rapid installation without welding or specialized tools.
Material Q235B / Q355B steel
Finish HDG ≥85μm
Thickness 2.5mm – 4.0mm
Span capacity Up to 6m
Load rating ≥200kg/m
Width range 200mm – 1000mm
PRODUCT SPECIFICATIONS
Base material Q235B structural steel (Q355B high-strength optional)
Side rail profile U-shaped strunt channel with rolled edges for enhanced rigidity
Surface finish Hot-dip galvanized per ASTM A123 / ISO 1461, average 85μm minimum
Material thickness 2.5mm (standard), 3.0mm (heavy), 4.0mm (extra heavy duty)
Rung spacing 150mm, 200mm, 250mm, 300mm intervals
Rung profile Flat bar (25x4mm) or round bar (12mm diameter)
Width options 200mm, 300mm, 400mm, 500mm, 600mm, 800mm, 1000mm
Side rail height 80mm, 100mm, 120mm, 150mm
Section length 6000mm standard (custom lengths available)
Design life
Temperature range -40°C to +250°C
APPLICATION SCENARIOS
Power substations – Heavy cable tray supports for high-voltage transmission and distribution cables.
Industrial manufacturing – Conveyor power and control cable routing in heavy machinery environments.
Renewable energy – Solar farms and wind turbine cable management requiring long-span supports.
Infrastructure – Bridge crossings, tunnel lighting, and utility corridor cable support systems.
Data centers – High-capacity cable ladder for large fiber and copper backbone installations.
FREQUENTLY ASKED QUESTIONS
☆ What makes U-strunt channel stronger than standard angle rail ladders?
The U-shaped cross-section provides a higher section modulus (resistance to bending) compared to angle iron or flat bar of equivalent weight. This allows longer spans between supports and reduces deflection under heavy cable loads, maintaining cable alignment and reducing stress on support brackets.
☆ What is the maximum support span for this heavy-duty ladder?
With standard load conditions (up to 150kg/m), spans of 6.0m can be achieved. For maximum rated load (200kg/m), we recommend spans of 4.5m-5.0m depending on width and side rail height. Always refer to the load-span tables for specific configurations.
☆ Is the hot-dip galvanized finish suitable for coastal environments?
Yes. The 85μm minimum coating thickness provides excellent corrosion resistance for most coastal and industrial environments. For extremely severe conditions (direct salt spray, chemical splash), we recommend specifying 100μm coating thickness or considering stainless steel alternatives.
☆ How are sections joined together?
Sections are joined using heavy-duty splice plates with pre-punched bolt holes. The U-channel design allows for internal splice plates that do not protrude beyond the rail profile. All hardware is hot-dip galvanized or stainless steel to maintain corrosion protection across joints.
INSTALLATION GUIDELINES
Support brackets should be positioned within 300mm of each ladder section end and at intervals specified by load-span calculations.
Use only hot-dip galvanized or stainless steel fasteners for all connections to prevent galvanic corrosion between dissimilar metals.
For seismic zones, additional bracing and expansion joints are recommended to accommodate structural movement during earthquakes.
STORAGE & MAINTENANCE
Store galvanized components on elevated racks with adequate ventilation to prevent "white rust" formation from trapped moisture.
Inspect galvanized coating for damage during transport; apply zinc-rich touch-up paint to any exposed steel prior to installation.
Periodic inspection of bolted connections is recommended during routine facility maintenance to ensure torque remains within specification.
U-strunt channel heavy duty ladder · Q235B/Q355B · HDG 85μm · 2.5-4.0mm · 200-1000mm · 6m span capacity
Physical Properties
Type Cable tray for wiring
Material Material Steel、 Aluminum、ss304、ss316L
Surface finishing/treatment

Pre-galvanized 8um/ Electro zinc Plating（≥12um）

Hot -dip galvanized（＞60um）

Plastic-spayed（＞60um）

Power coating

Acid washing +polishing （option）

Dimension range

customizable is available

 Width
Side Rail Height
Length
Thickness/wire diameter
Max. Working Load According To Size
Accessories/related products
Product Features
Color Silver or others/According to customers
Enviroment demmand
Application
About us
Jiangsu Youming Group Co., Ltd.
Jiangsu Youming Group Co., Ltd.

Jiangsu Youming Group Co., Ltd. was established in 2015 and is located in the Taidong Industrial Park, Shiyuan Town, Dongtai City. We are China Custom U-strunt channel cable ladder with heavy duty Suppliers and OEM/ODM U-strunt channel cable ladder with heavy duty Factory. It is a enterprise specializing in the research and development and production of cable trays. It is a innovative high-tech enterprise in Jiangsu Province. With a registered capital of 50 million RMB, it covers an area of 60 acres and has a production workshop of over 26,000 square meters, with an annual production capacity of more than 30,000 tons of cable trays.

In the increasingly refined cable tray market, the company has steadily advanced to the forefront of the industry, equipped with fully automatic production lines. Its main include longitudinal and transverse shearing lines, automatic forming lines, automatic welding lines, automatic riveting lines, laser cutting and CNC turret punching lines, and automatic spraying lines. The products are mainly divided into several series such as stainless steel, aluminum alloy, hot-dip galvanized, and powder-coated/fireproof, and various specifications and models such as trough type, ladder type, perforated type, and mesh type. The products are widely used in infrastructure, transportation, communication, power (including wind, photovoltaic and thermal power, machinery, metallurgy, shipping, chemical, pharmaceutical, food and other fields. The company has its own testing center, and every test from raw material procurement to product delivery undergoes quality inspection, ensuring that the product quality reaches the high level in the industry. After years of market expansion, it has established good cooperative relationships with many famous domestic enterprises, providing customers with comprehensive product selection services and winning high recognition and trust from customers.

The company attaches great importance to production and technological research and development and innovation. With talent and technology as the support, it has over 150 skilled employees, including more than 50 technical backbone members. It has a design and R&D team, advanced enterprise management, and an efficient sales team. The company has passed the ISO 9001:2015 quality management system standard certification, ISO 14001:2015 environmental system standard certification, ISO 45001:2018 occupational health and safety system standard certification, and EU CE certification It has obtained multiple independent intellectual property rights and patent technologies and is in a high position in technological innovation in the industry.

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