The Alley Arm provides rigid support for crossarms mounted to one side of utility poles in power distribution and transmission systems. It maintains proper alignment of overhead lines in areas with limited clearance, such as alleyways or narrow spaces between buildings, supporting off-side cross arms to ensure consistent power flow and reduce misalignment risk across various environmental conditions.
Manufactured from high-quality angle steel conforming to British Standard (BS) 4360, the component undergoes hot-dip galvanization meeting American Society for Testing and Materials (ASTM) A123 and ASTM153 specifications. This process delivers resistance to corrosion, moisture, and Ultraviolet (UV) exposure while providing a smooth, continuous surface for enhanced durability.
Available in lengths from 5 feet to 120 inches with angle sizes such as 1-3/4 inches by 1-3/4 inches by 3/16 inches, the Alley Arm accommodates load capacities up to 32,000 pounds per wire. Select models feature TorqueGUARD™ bushings and SunGUARD® UV protection for additional functionality. A solidly welded lineman step enhances safety during installation, with options for custom lengths, configurations, and drill patterns available.
Installation requires mounting the brace at a 45-degree angle to the pole using a machine bolt for crossarm attachment and two 1/2-inch lag screws for pole securing. Pre-drilled holes facilitate straightforward field assembly while maintaining structural integrity.
Alley Arm Manufacturer for Robust Power Line Solutions
RaxPower is a leading manufacturer of Pole Line Hardware in China, with over 21 years of manufacturing and exporting experience. Our Alley Arm brace is meticulously designed for rigid bracing to ensure proper alignment of power distribution and transmission lines. Constructed from premium angle steel that adheres to the BS4360 standard, it guarantees straightness and freedom from defects. The hot-dip galvanized finish conforms to ASTM A123 and ISO 1461, with a mean coating thickness over 85 microns, providing a smooth, rust-free surface for enhanced durability and corrosion resistance.
Key features and applications include:
- Mounting at a 45-degree angle for optimal stability on utility poles, overhead lines, and lighting poles
- Available in standard lengths of 60″, 84″, and 120″, with customizable options
- Straightforward installation using lag screws and machine bolts for secure fastening
The manufacturing process leverages advanced techniques such as hot forging for superior strength, automatic machinery for precise sizing, and includes cutting, shaping, drilling, and hot-dip galvanization. Each Alley Arm undergoes rigorous quality control, including load testing and gauge inspections per IEC 120 standards, and has passed SGS certifications to ensure 100% reliability. With a commitment to excellence and timely delivery, we provide unmatched service for all infrastructure projects. If you are interested in our Alley Arm or have any questions, please feel free to contact us.
| Length (ft) | Mounting Hole (in) | Angle Size (in) | Standard Pack Quantity | Carton Weight (lbs) | Load Capacity (lbs per wire) |
|---|---|---|---|---|---|
| 5 | 9/16 | 1-3/4 x 1-3/4 x 3/16 | 1 | 13 | 32,000 |
| 7 | 11/16 | 1-3/4 x 1-3/4 x 3/16 | 5 | 86 | 32,000 |
| 10 | 11/16 | 2 x 2 x 1/4 | 5 | 181 | 32,000 |
Frequently Asked Questions (FAQS)
What is an alley arm and what are its primary applications?
An alley arm is a crossarm mounted to one side of a pole at a 45-degree angle, requiring rigid bracing to maintain proper alignment of overhead lines. It provides firm support for off-side steel cross arms and keeps power distribution and transmission lines stable. Alley arms are widely used on utility poles, power poles, and light poles, particularly in narrow spaces like alleyways where they support critical grid infrastructure.
What materials and quality standards do your alley arms meet?
Our alley arms are constructed from premium angle steel conforming to BS4360 standard and hot-dip galvanized with a mean coating thickness exceeding 85 microns per ISO 1461. The galvanizing process meets ASTM A123 and ASTM153 standards, providing a smooth, rust-free surface with superior corrosion resistance. We employ strict quality control from raw material selection through multi-stage testing including load and gauge tests, ensuring compliance with ASTM and IEC standards for long-term durability in critical grid applications.
What are the standard sizes and can they be customized?
Standard lengths include 60 inches, 84 inches, and 120 inches, with angle sizes such as 1-3/4 x 1-3/4 x 3/16. We offer comprehensive customization services for length, width, thickness, and material specifications. Our professional engineers work directly with your drawings, samples, or specifications to tailor alley arms for seamless integration into your projects while maintaining consistent quality and performance.
How is the alley arm installed and what safety features does it include?
The alley arm is mounted at a 45-degree angle to the pole, attached to the side with a machine bolt and secured with two 1/2 lag screws. It includes a solidly welded lineman step to enhance safety during installation by preventing slipping, and the hot-dip galvanized finish ensures protection and longevity in outdoor environments.
What is your production capacity for large-scale projects?
With over 21 years of manufacturing experience, we operate 17,000 square meters of production workshops and 5,000 square meters of warehouses, supported by automated processes and a skilled workforce. This enables efficient bulk production with typical delivery within 10-15 days after order confirmation, meeting the demands of major infrastructure projects with tight deadlines.
How do you maintain competitive pricing without compromising quality?
As a direct manufacturer, we eliminate intermediary costs and leverage advanced automation and hot-forging technology to enhance production efficiency. Rigorous quality control throughout manufacturing minimizes defects and waste, allowing us to offer cost-effective solutions while upholding high standards for durability and compliance—ideal for value-focused customers like distributors and OEMs.
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