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Heavy Duty Single Sheave Stringing Block with 5-20KN Rated Load, Lightweight Aluminum Sheave, and Corrosion Resistant Design for Power Line Construction
Product Details:
| Place of Origin: | Ningbo |
| Brand Name: | Suntech |
| Certification: | ISO |
| Model Number: | SHD |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 PCS |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Plywood Case |
| Delivery Time: | 3-7days |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 3000 PCS/Month |
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Detail Information |
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| Name: | Single Sheave Stringing Block | Model: | SHD |
|---|---|---|---|
| Applicable Conductor: | LGJ25-500 | Rated Load: | 5-20KN |
| Weight: | 1.5-15KG | Warranty: | 1 Year |
Product Description
The Single Sheave Stringing Block is a fundamental and indispensable tool in the construction and maintenance of overhead electrical power lines. It is a simple yet highly effective mechanical device consisting of a robust frame that houses a single, large-diameter wheel (the sheave) mounted on high-quality bearings. The sheave features a precisely machined groove designed to cradle a specific size or type of electrical conductor or cable.
Its primary function is to provide a smooth, low-friction pathway for the cable as it is being pulled (strung) over support structures like transmission towers, utility poles, or through dead-end configurations. By dramatically reducing the friction between the moving cable and the fixed structure, the stringing block minimizes the force required to pull the cable, protects the cable's outer jacket from abrasion and crushing, and enables crews to achieve precise tension control during installation.
From small distribution line repairs to large transmission projects, the Single Sheave Stringing Block is a workhorse tool that enhances safety, improves efficiency, and ensures the quality of overhead line installations for utility crews and electrical contractors.
| Item Number | Model | Suitable Conductor | Rated Load (KN) | Weight (kg) | Remark |
|---|---|---|---|---|---|
| 10171 | SHD-120*30 | LGJ25~70 | 5 | 1.5 | Aluminium sheave |
| 10172 | SHD-160*40 | LGJ95~120 | 10 | 2.5 | |
| 10173 | SHD-200*40 | LGJ150~240 | 15 | 4 | |
| 10174 | SHD-200*60 | LGJ150~240 | 15 | 4.6 | |
| 10175 | SHD-250*40 | LGJ150~240 | 20 | 4.6 | |
| 10176 | SHD-250*60 | LGJ300~400 | 20 | 6 | |
| 10177 | SHD-270*60 | LGJ300~400 | 20 | 7 | |
| 10178 | SHD-320*60 | LGJ300~400 | 20 | 9.5 | |
| 10179 | SHD-400*80 | LGJ400~500 | 20 | 15 | |
| 10191 | SHDN-120*30 | LGJ25~70 | 5 | 1.5 | Nylon sheave |
| 10192 | SHDN-160*40 | LGJ95~120 | 10 | 2.5 | |
| 10193 | SHDN-200*40 | LGJ150~240 | 15 | 3.6 | |
| 10194 | SHDN-200*60 | LGJ150~240 | 15 | 4 | |
| 10195 | SHDN-250*40 | LGJ150~240 | 20 | 4 | |
| 10196 | SHDN-250*60 | LGJ300~400 | 20 | 4.5 | |
| 10197 | SHDN-270*60 | LGJ300~400 | 20 | 5.6 | |
| 10198 | SHDN-320*60 | LGJ300~400 | 20 | 6.7 | |
| 10198-1 | SHDN-320*80 | LGJ300~400 | 20 | 8 | |
| 10199 | SHDN-400*80 | LGJ400~500 | 20 | 13 | |
| 10199-1 | SHDN-400*100 | LGJ400~500 | 20 | 15 | |
| 10199-2 | SHDN-400*120 | LGJ400~500 | 20 | 18 |
- Provides a Smooth, Low-Friction Path for Cable Installation: The sheave rotates freely on its bearings, allowing the cable to roll over structures rather than scrape against them, drastically reducing pulling force requirements.
- Protects Valuable Cable and Conductor from Damage: Cradles the cable in its smooth groove, distributing the load and eliminating sharp contact points to maintain electrical integrity and mechanical strength.
- Essential for Overhead Line Construction and Maintenance: Industry standard tool for installing new power lines, replacing old conductors, or performing repairs at each support point along the line route.
- Reduces Physical Strain and Enhances Worksite Safety: Mechanizes the cable pulling process, reducing labor intensity and preventing dangerous situations like cable snap-back.
- Enables Better Tension Control and Sag Setting: Provides consistent, predictable friction for precise tension adjustments to achieve exact sag specifications in engineering plans.
- Durable and Lightweight for Easy Handling and Transport: Constructed from high-strength aluminum alloy for durability and corrosion resistance while remaining light enough for easy transport.
- Versatile for a Wide Range of Cable Sizes and Types: Available with different sheave groove diameters and profiles to match various cables including ACSR conductors, all-aluminum wires, and OPGW.
- A Foundational Tool for Professional Quality Workmanship: Demonstrates commitment to industry best practices, asset protection, and quality outcomes in electrical construction.
- Improves Efficiency and Lowers Overall Project Costs: Provides time and labor savings through faster pulls, reduced cable damage, and less equipment strain.
- Supports the Development of Reliable Power Infrastructure: Ensures power lines deliver electricity reliably and safely throughout their 40 to 50-year design life.
In summary, the Single Sheave Stringing Block is a masterpiece of practical engineering. It solves a fundamental physical challenge in line work with elegant simplicity. By converting sliding friction into rolling friction, it protects valuable assets, conserves energy, enhances safety, and enables precision. It is an essential, enduring tool that no professional engaged in overhead electrical construction should be without, proving that the most reliable solutions are often the most straightforward.
