Heavy Duty Cable Laying Pulley Blocks - HDPE Sheave & Steel Frame for Overhead Power Line Stringing (Plate, Corner, Wellhead Types)

Product Overview

Welcome to Zhengshi Changyun Technology's specialized collection of Cable Laying Pulleys. Designed for professionals in the power transmission and telecommunication industries, our pulley systems are engineered to reduce friction, protect cable jackets, and dramatically increase efficiency during underground duct pulling or overhead stringing operations. Whether you're managing a utility installation or a large-scale infrastructure project, our pulleys provide the reliability you need.

Key Product Categories & Features

1. Plate Pulley (Flat Surface Design)

Ideal for cable laying in flat trays or directly on the ground. The low-friction surface ensures smooth cable guidance without causing scratches or abrasions to the insulation layer.

2. Straight Running Pulley (Linear Guidance)

Specifically designed for straight-line cable pulling applications. Constructed with high-strength steel frames and durable bearings, these pulleys maintain stability over long distances, preventing cable deviation.

3. Wellhead Pulley (Manhole/Cable Pit Use)

Engineered for confined spaces such as manholes, cable pits, or vaults. Its compact design allows for easy deployment and retrieval, facilitating directional changes of the cable route in complex underground networks.

4. Triple Pulley Block (Triple-Sheave Configuration)

Designed to support and guide multiple cables simultaneously. Perfect for bundled cable installations, reducing labor costs and improving workflow efficiency on site.

5. Right Angle / Corner Pulley (90° Deflection)

Essential for changing the direction of cable pulling, especially in corners, bends, or at the entrance of conduits. The robust steel side plates and high-quality bearings ensure a smooth 90-degree turn, minimizing pulling tension.

Why Choose Our Cable Laying Accessories?

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  Premium Material: We use high-density polyethylene (HDPE) sheaves, which are lightweight, corrosion-resistant, and electrically non-conductive, protecting your expensive power cables.

  
  

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  Durable Construction: The frame is made of galvanized or painted carbon steel, built to withstand harsh outdoor construction environments.

  
  

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  Versatile Sizing: Available in various sheave diameters to accommodate different cable outer diameters (O.D.).

  
  

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  Safety First: All pulleys are designed to reduce the risk of "bird caging" and cable twisting during the pulling process.

Technical Specifications (General)

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  Sheave Material: Nylon / Aluminum Alloy / HDPE

  
  

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  Frame Material: Q235 Steel (Hot-dip Galvanized)

  
  

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  Bearing Type: High-Speed Ball Bearing

  
  

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  Rated Load: 5kN - 20kN (Depends on model)

  
  

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  Application: Power Cable, Fiber Optic Cable, Communication Cable

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Applications

Suitable for underground cable installation, overhead transmission line construction, substation maintenance, and trenchless technology projects.