Heavy-Duty 508 Series Stringing Block For Power Line Construction

The ​​508 Series Stringing Block​​ is a professional-grade tool designed for power line construction, maintenance, and conductor stringing operations. Engineered for durability and efficiency, this stringing block ensures smooth cable and wire rope handling during transmission and distribution line installations.

​​Key Features & Benefits:​​

• ​​Heavy-Duty Construction​​ – Made from high-strength galvanized steel or lightweight aluminum for long-term reliability.
• ​​Ball Bearing Sheave​​ – Reduces friction, allowing smooth conductor movement and minimizing wear.
• ​​ANSI Compliance​​ – Meets industry standards for safety and performance in power line applications.
• ​​Corrosion-Resistant Finish​​ – Zinc-plated or anodized coating for extended service life in harsh environments.
• ​​Multiple Sheave Options​​ – Available in single, double, or triple sheave configurations for different cable types.
• ​​Quick-Release Hook​​ – Enables fast attachment and removal from support structures.
• ​​High Load Capacity​​ – Rated for conductors, OPGW, ADSS, and other utility cables.

​​Applications:​​

• ​​Transmission Line Construction​​ – Stringing conductors and ground wires.
• ​​Distribution Line Work​​ – Installing new cables or replacing old ones.
• ​​OPGW & ADSS Installation​​ – Fiber optic cable deployment.
• ​​Maintenance & Repair​​ – Used in live-line work and emergency restoration.
• ​​Railway & Telecom Cabling​​ – Overhead wire installations.

​​Available Models:​​

• ​​Single Sheave (508-S)​​ – Basic model for standard conductor stringing.
• ​​Double Sheave (508-D)​​ – For parallel conductor or OPGW installation.
• ​​Triple Sheave (508-T)​​ – Heavy-duty use with multiple cables.
• ​​Insulated Version (508-I)​​ – For live-line work up to 36kV.
• ​​Custom Configurations​​ – Special sizes and materials available.

​​Why Choose the 508 Series?​​

• ​​Proven Reliability​​ – Used by utility companies worldwide.
• ​​Low Maintenance​​ – Sealed bearings prevent dirt and moisture ingress.
• ​​Safety Certified​​ – Tested for load capacity and durability.
• ​​Easy to Transport​​ – Compact design with carrying handle.
• ​​Long Service Life​​ – Resistant to abrasion and UV degradation.

Suntech Power Group is one of the largest Procurement, Engineering & Contracting Group companies in China.Our group branch company and factory have already engaged

in the field of electric power more than 26 years.

1.Steel structure industry especially steel towers and related products which include power towers and substation structures, telecommunication towers and related products of telecom sites, street light poles and so on.

2.Transmission line stringing tools and equipments,undergroud cable pulling tools incuded Stringing Blocks,Hoisting Tackles,Cable Rollers,Conductor Gripper,Gasoline Powered Winch,Hydraulic Puller Tensioner,Gin Poles,Inspection Trolleys and other rated machines.

3.Power fittings,transmission insulators and wires and cables included Suspension insulator,glass insulator,porcelain insulator,aluminum conductor steel reinforced,all aluminum alloy conductor,aluminum clad steel strand, aerial bounded cable,power cable,holding clamp,pulling clamp with pulley,arch plates,connector pipes and rated fittings.

And our branch company Ningbo Suntech Power Machinery Tools Co.,Ltd. as a professional global supplier

who have been exporting more than 90 countries in the world, we have been trying to focus on the comprehensive solutions like provides all related products and engineering services as client's requirement, for example from engineering consultant, design services, drawing services, manufacturing, transportation, supervision and even installation construction & maintenance services.

Insisting on business philosophy of “To be honest, To get win-win” and service concept of pursuing maximizing customer value , makes it win great reputations from both telecommunication operators and electricity power operators,we are willing to develop and share sucess with you.