Heavy Duty 660 Stringing Block For High-Voltage Transmission Lines

1. Professional Conductor Installation Performance​​

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  Designed for conductors up to 80mm diameter

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  Working load limit: 15,000 lbs (6,800 kg)

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  Low-friction operation with precision bearings

​​2. Industrial-Grade Construction​​

• Forged aluminum alloy body (6082-T6)

• Chrome-plated steel axle with sealed bearings

• Reinforced side plates with safety locks

​​3. Advanced Safety Features​​

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  Automatic spring-loaded gate lock

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  5:1 safety factor load tested

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  Non-slip groove surface treatment

​​4. Ergonomic Design Advantages​​

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  40% lighter than comparable steel blocks

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  Quick-release side plate mechanism

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  Balanced weight distribution

​​5. Comprehensive Applications​​

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  Ideal for:

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    500kV+ transmission lines

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    Bundle conductor installation

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    Cross-country power projects

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    Heavy duty stringing operations

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    Special conductor applications

​​6. Low Maintenance Operation​​

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  Self-lubricating sealed bearings

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  Corrosion-resistant anodized finish

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  Minimal moving parts

​​7. Productivity Enhancements​​

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  50% faster conductor payout than standard blocks

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  Reduces conductor abrasion

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  Enables smooth operation under heavy loads

​​8. Job Site Ready​​

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  Includes protective carrying case

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  Pre-assembled for immediate use

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  Field-serviceable components

​​9. Professional Certifications​​

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  ASTM F2434 compliant

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  CE certified

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  IEEE 524 compliant

​​10. Long-Term Value​​

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  15,000+ operation lifespan

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  Reduces project downtime

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  Minimizes conductor replacement costs

​​11. Size Options​​

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  Sheave diameters: 660mm, 760mm, 900mm

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  Groove configurations: 1-8

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  Custom sizes available

​​12. Environmental Resistance​​

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  -40°C to +80°C operating range

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  Saltwater corrosion resistant

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  UV stabilized materials

​​13. User-Friendly Features​​

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  Color-coded load rating indicators

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  Tool-free side plate removal

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  Integrated lifting points

​​14. Package Contents​​

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  660 stringing block main unit

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  Spare parts kit (bearings, pins)

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  Operation manual

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  Inspection certificate

​​15. Industry Applications​​

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  Extra high voltage transmission

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  Renewable energy grid connections

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  International power projects

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  Heavy industrial installations

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  Utility maintenance programs

​​16. Performance Advantages​​

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  Maintains alignment under extreme loads

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  Easy to install on tensioners

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  Durable in harsh weather conditions

​​17. Technical Innovations​​

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  Patented bearing protection system

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  Advanced groove geometry

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  Anti-vibration design

​​18. Purchase Options​​

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  Available through power equipment suppliers

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  Project volume discounts

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  Global shipping available

​​19. Training Resources​​

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  Installation video tutorials

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  Safety operation manuals

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  Maintenance procedure guides

​​20. Quality Assurance​​

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  Each unit factory load tested

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  Full material traceability

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  1-year structural warranty

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.