Single-pole Insulated Conductor Rails

Single-pole insulated conductor rails for cranes are a highly reliable mobile power supply system specifically designed for various types of lifting equipment, including overhead, gantry, and jib cranes. They are constructed from highly conductive copper or aluminum alloy conductors and encased in multiple layers of high-strength, flame-retardant engineering plastic insulation, forming a rigid, self-supporting, enclosed structure.

The conductor rail materials are copper (200 A–5000 A) and aluminum (150 A–3000 A).
The conductor rail system can be installed indoors or outdoors. For high-temperature applications, high-temperature insulation covers rated up to +115°C are available; for low-temperature applications, the system is rated down to -40°C.

Description

Factory Workshop Overhead Cranes: Provides independent and stable power and signal transmission for multiple moving mechanisms of the crane, including the main girder, trolley, main hook, and auxiliary hook, meeting the demands of heavy-duty lifting and precision handling tasks. It is particularly suitable for workshops in the automotive manufacturing, heavy machinery, and steel metallurgy industries.

Port and Yard Gantry Cranes: In harsh outdoor environments characterized by high salt fog, high humidity, and extreme temperature fluctuations, its superior sealing and corrosion-resistant properties ensure uninterrupted power supply to large equipment such as container gantry cranes and ship loaders, significantly enhancing operational reliability and equipment utilization.

Warehouse and Logistics Center Jib Cranes/Light-Duty Cranes: Within warehouse spaces, their compact structure, flexible installation, and neat appearance provide safe and clean power supply for light-duty lifting equipment, eliminating safety hazards and maintenance hassles caused by cable dragging.

Features

1. Ultimate Safety and Reliability: Featuring a fully enclosed insulated design with IP protection ratings up to IP23/54/65, these cables fundamentally eliminate risks of electric shock, phase-to-phase short circuits, and foreign object contact. The conductors and insulating materials are bonded through a specialized process, delivering exceptional seismic and impact resistance that fully accommodates the vibrations and swaying inherent in crane operations.

2. High Efficiency and Low Energy Consumption: The conductor boasts high electrical conductivity, low contact resistance, and minimal voltage drop, delivering outstanding energy efficiency and effectively reducing power loss. Additionally, its low-impedance characteristics minimize voltage fluctuations during crane motor startup, making it more compatible with the power grid and electrical equipment.

3. Extended Lifespan and Minimal Maintenance: The collector (current collector) features a multi-contact, high-resilience, self-compensating design (e.g., C-type or V-type carbon brushes), ensuring stable contact with the conductor rail and uniform wear, resulting in a service life far exceeding that of traditional solutions. The system is virtually maintenance-free, requiring only routine inspections, which significantly reduces total lifecycle costs.

4. Rapid Deployment and Professional Support: We provide modular components in standard lengths that support flexible assembly and quick installation, significantly shortening project timelines. With extensive experience in crane industry applications, we offer end-to-end professional services—from solution design and on-site guidance to after-sales support—ensuring the system is perfectly matched to your crane and operates efficiently.

Technical Data

Conductor railAluminumCopper
Nominal current at
100%DC and 35℃(A)
250-300320-1250230-8001250 -3000500 -800800 -16001250 -5000
D.C.resistance at 35 ℃ (Ω/km)0.203 -0.1870.153 -0.0460.153 -0.0670.043 -0.0150.116 -0.0670.067 -0.0390.036 -0.007
Impendance at 35 ℃ (Ω/km)0.209 -0.1950.155 -0.0480.155 -0.0690.044 -0.0170.118 -0.0690.069 -0.0400.038 -0.008
Support spacing (m)1.51.81.821.51.82
Rail length (m)6666666
Housing length(m)5.885.835.835.755.885.835.75
Max.voltage (V)690
Dielectric strength (KV/mm)30 -40
StandardGB7251.2 -2006
Traveling speed≤600m/min
Expansion jointNot required up to 200 mins installation length
Flame retardantClass B1 -no flaming particles, self -extinguishing
Permissible ambient temperatureStandard insulation -20 ℃ -+70 ℃
High temperature insulation   -10 ℃ -+115 ℃
Low temperature insulation   -40 ℃ -+85 ℃

Purchasing Process

FAQs About Choosing the Right Gantry Crane and Supplier

In order to obtain accurate quotes for custom overhead cranes, providing the following core information will greatly improve efficiency:

1. Key specifications: including rated lifting weight (tons), span (i.e., track spacing, meters), and lifting height (meters), which is the basis of the design.
2. Use environment and working conditions: Explain the conditions of the installation site (such as indoor/outdoor, temperature, humidity) and work level (busy level), which determines the material selection and configuration level of the structure.
3. Specific configuration requirements: clarify the drive mode (such as frequency conversion control), brand preferences for electrical components, safety devices (such as overload limiters, anti-collision systems), and whether special functions such as remote control are required.
4. Installation and service: confirm the on-site power supply conditions (voltage, frequency), installation conditions, and specific expectations for delivery time, installation and commissioning, and after-sales service.

The more detailed the information provided, the more accurate and reliable the solutions and quotations obtained.

1. Span and lifting capacity: this is the foundation.The larger the span and the higher the rated lifting weight, the material and design costs of the main beam and structure will increase significantly, and the higher the price.

2. Working level and frequency of use: The working level (A1-A8) represents the busy level and load status of the crane.Cranes with frequent and heavy-duty use require more durable motors, gearboxes and structural parts, and the cost is naturally higher than that of lightweight and occasionally used equipment.

3. Structure and configuration: The double beam is more complex and stable than the single beam structure, and the price is higher.At the same time, the lifting height, operating speed, motor brand, control system (ordinary vs frequency conversion), and the level of safety devices (such as anti-swing, load monitoring) all directly affect the final quotation.

4. Degree of customization and brand service: completely standard models have lower costs.The customized design based on the workshop environment (such as explosion-proof and high temperature), special processes (such as metallurgical special), brand added value, and after-sales guarantee system will all be reflected in the price.

In simple terms, when buying a bridge crane, it is necessary to consider “how much, how frequently, what environment and what configuration”, which determine its core value and price.

Which crane to choose mainly depends on your specific needs. You can quickly judge from the following four core aspects:

-Single-beam bridge crane: it is suitable for conventional workshops with light and medium loads (usually ≤20 tons), medium span, and low frequency of use. It is the most economical and versatile choice.
-Double-girder bridge crane: used for heavy-duty, long-span, or high-work-level occasions (such as frequent hoisting, metallurgy, heavy-duty assembly). Its stability, durability, and safety are higher, but the cost is also increased accordingly.
-Free vertical crane (cantilever/column type): suitable for fixed working points and working conditions with limited rotation range, such as beside machine tools, maintenance areas, or production line stations, it can efficiently use corner space and be installed flexibly.
-Grab crane: It is specially used for the handling, loading, and unloading of bulk materials (such as grain, coal, sand, and gravel). The only reason to choose it is that you need to deal with such unpackaged loose materials.

In simple terms, you can filter according to this logic:

First, according to the lifting weight and span, choose between a single beam and a double beam.
If the scope of operation is highly concentrated and the space is limited, consider a free vertical.
If the handling object is bulk material, it points directly to the grab type.

Yes. Our bridge cranes fully comply with and follow relevant international standards. Our company has passed a number of international certifications, such as the ISO 9001 quality management system, which guarantees that the management system ensures every aspect of the product, from design to delivery, is under high standards of quality control. Therefore, you can rest assured that our cranes are internationally competitive in terms of safety and quality.
 
In order to ensure the versatility, safety, and reliability of our products on a global scale, we strictly follow the mainstream international standard systems, including the International Electrotechnical Commission (IEC), European (EN/DIN), and the United States (ANSI/ASME) in the design and manufacturing process. For example, for the EU market, our products meet the detailed requirements of the Machinery Directive and CE certification. At the same time, we also actively adapt to specific regulations in other regions to meet the compliance needs of different customers.

Delivery times largely depend on whether the crane is standard or customized. Based on our experience, standard single-girder and double-girder cranes can be produced more quickly, while cranes with special spans, duty ratings, or environmental requirements naturally require additional engineering design time.

For each quotation, we provide an estimated production and delivery schedule based on your configuration and destination. Throughout the manufacturing process, our team maintains communication with the customer to ensure no unexpected issues arise before shipment.

Compared with many suppliers, Yangyumech mainly reflects the two differentiated advantages of high customization flexibility and clear international compliance when providing bridge cranes.

On the one hand, we focus on in-depth customized services. According to your specific needs, we can provide fully customized solutions on core parameters such as rated load capacity, span, and lifting height, and accept personalized requirements. This means that what you get is not a standard product, but exclusive equipment that accurately matches the working conditions of your workshop.

On the other hand, we attach importance to international standards and quality certification. Our products clearly meet the requirements of international certifications such as CE, which ensures that their safety and reliability can meet the mainstream standards of the international market, and provides you with additional quality confidence guarantees. Combined with our direct supply capabilities as a powerful factory, we can achieve better comprehensive value for you while obtaining compliant and customized products.

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Get In Touch

Yangyumech is a leading professional manufacturer of cranes in China. Our company integrates the processes of crane research and development, manufacturing, sales and service.