10kN Crossarm-Mounted Tri-Roller Stringing Block for Three Conductor Bundles

Discover Ningbo Changshi's 10kN crossarm-mounted tri-roller stringing block, ideal for safe and efficient tension stringing of three-conductor bundles on overhead transmission lines (OHTL).

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10kN Crossarm-Mounted Tri-Roller Stringing Block for Three Conductor Bundle Installation

At Ningbo Changshi Electric Power Machinery Manufacturing Limited, we are continually developing specialized tools to meet the complex demands of modern overhead transmission line (OHTL) construction. Our 10kN Crossarm-Mounted Tri-Roller Stringing Block is a high-performance, precision-engineered solution specifically designed for the efficient, safe, and synchronized tension stringing of three-conductor bundles. As a prominent China manufacturer and exporter, we offer a comprehensive one-stop supply for specialized tools and equipment, and this tri-roller block exemplifies our commitment to advanced engineering, robust performance, and unwavering reliability for intricate OHTL projects.

The use of three-conductor bundles is increasingly common in higher voltage transmission lines to enhance current carrying capacity and optimize electrical performance. This specialized block is designed to be securely mounted directly onto a crossarm, providing a stable platform for guiding all three conductors simultaneously. The unique tri-roller configuration ensures that each conductor maintains its proper spacing and tension, minimizing friction and preventing damage during the critical stringing process. With a robust 10kN (approximately 2,248 lbs) rated capacity, it reliably handles the significant loads associated with multi-conductor installations.

Product Features & Benefits:

  • Optimized for Three-Conductor Bundles: Features three precisely aligned rollers, specifically designed to accommodate and guide three conductors simultaneously, maintaining their separation and preventing entanglement or abrasion.

  • Direct Crossarm Mounting: Engineered with a secure and stable mounting mechanism for direct attachment to power line crossarms, providing a rigid and reliable setup during stringing operations.

  • High Load Capacity (10kN): Robustly constructed to safely manage tension loads up to 10 kilonewtons, making it highly suitable for medium to large-scale transmission line projects utilizing three-conductor bundles.

  • Smooth & Synchronized Movement: Each roller is equipped with high-quality, sealed precision bearings, ensuring exceptionally smooth, low-friction, and synchronized rotation across all three lines, crucial for controlled and even tensioning.

  • Superior Conductor Protection: Each roller features a carefully machined groove, often lined with durable, non-abrasive materials like UMC (polyurethane) or resilient rubber, providing a gentle contact surface to protect valuable conductors from kinking, scratching, or other damage.

  • Durable & Robust Construction: Manufactured from high-strength galvanized steel or advanced aluminum alloys, with a reinforced frame designed to withstand the rigors of continuous field use and harsh environmental conditions, guaranteeing extended service life.

  • Corrosion Resistance: All components are typically hot-dip galvanized or treated with a superior corrosion-resistant coating, ensuring long-term resilience against rust and environmental degradation.

Product Applications:

Our 10kN Crossarm-Mounted Tri-Roller Stringing Block is indispensable for a wide range of overhead transmission line projects, particularly those involving three-conductor bundles:

  • New Transmission Line Construction (Triple Bundle): Essential for the initial tension stringing of three-conductor bundles on new power line routes.

  • High-Voltage Line Upgrades & Modernization: Ideal for re-conductoring or upgrading existing lines to accommodate increased capacity with triple conductor configurations.

  • Medium to High Voltage (HV) Systems: Perfectly suited for projects requiring efficient and safe handling of three conductors simultaneously from a stable crossarm position.

  • Complex Terrain & Long Span Stringing: Its robust design and secure mounting make it reliable for use in diverse and demanding geographical conditions where precision and stability are critical.

  • Bundle Conductor Repair & Maintenance: Facilitates temporary support or re-stringing of sections of three-conductor bundles.

Technical Data Sheet:

Feature Specification
Rated Load Capacity 10kN (approx. 2,248 lbs)
Roller Configuration Tri-Roller (Three Sheaves)
Roller Diameter (Outer) Varies (e.g., 300mm, 400mm, 500mm – specific models available)
Groove Material High-strength Aluminum Alloy / Steel with UMC lining
Frame Material Hot-Dip Galvanized Steel
Mounting Type Crossarm Mounted (Secure Clamp/Bolt System)
Max. Conductor Diameter (Per Groove) Specific to groove design (e.g., 20mm, 30mm)
Bearing Type Sealed Precision Ball Bearings / Roller Bearings
Safety Features Retention Pins, Secure Locking Mechanisms

Note: Specific technical specifications, including exact roller diameter and maximum conductor diameter per groove, may vary depending on the model and intended application. Please contact us for detailed datasheets and to discuss custom requirements.

Why Choose Ningbo Changshi Electric Power Machinery Manufacturing Limited?

Choosing Ningbo Changshi means partnering with a trusted industry leader dedicated to quality, innovation, and comprehensive solutions. Here’s why we are your ideal choice:

  1. Specialized Multi-Conductor Expertise: We possess deep knowledge in designing and manufacturing tools for complex multi-conductor stringing, ensuring optimal performance and conductor protection.

  2. Comprehensive One-Stop Solutions: As a prominent manufacturer and exporter, we offer a vast array of equipment for both overhead and underground power line projects, providing a truly integrated supply chain that simplifies your procurement.

  3. Unwavering Quality & Durability: Every 10kN Crossarm-Mounted Tri-Roller Stringing Block undergoes rigorous quality control and testing, ensuring it is robust, reliable, and performs flawlessly in the field, even under heavy loads.

  4. Global Export & Support: Our efficient worldwide export capabilities and dedicated customer service team ensure prompt delivery and expert technical assistance, wherever your challenging project is located.

  5. Performance-Driven Innovation: We focus on practical, high-performance designs that offer exceptional value, enhancing efficiency, safety, and productivity on your complex power line construction sites.


Final Summary:

Our 10kN Crossarm-Mounted Tri-Roller Stringing Block is an indispensable, high-capacity tool essential for the efficient, safe, and damage-free tension stringing of three-conductor bundles on overhead transmission lines. With its precision engineering and robust, specialized design for crossarm mounting, it exemplifies Ningbo Changshi Electric Power Machinery Manufacturing Limited's commitment to delivering high-quality, reliable equipment that meets the demanding requirements of modern power infrastructure projects.

Achieve superior efficiency in three-conductor bundle stringing! Explore our 10kN Crossarm-Mounted Tri-Roller Stringing Blocks. Visit www.ohtlstringingequipment.com or contact Ningbo Changshi Electric Power Machinery Manufacturing Limited today to discuss your specific multi-conductor stringing needs and request a comprehensive quotation!

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