20kN Single Sheave Fiber Optic Cable Tools for Max Ø22mm OPGW, Low Wear Stringing Blocks Cable Pulling Blocks for Power Line Installation

Product Attributes

Product Name: 20kN Single Sheave OPGW Cable Pulley Block
Keywords: Stringing Blocks / Cable Pulling Blocks / OPGW Cable Pulley / Fiber Optic Cable Tools
Rated Load: 20kN
Number of Sheaves: 1 Sheave
Applicable Cable Diameter: Max Ø22mm
Application: OPGW Stringing / Fiber Optic Cable Pulling / Power Line Installation
Structure Type: Single Sheave Cable Pulley Block
Material: Steel Frame with Low-Wear Sheave
Customization: Available according to cable size, frame structure, hook type, and project requirements

Product Overview

The 20kN single sheave OPGW cable pulley block is designed for fiber optic cable stringing and overhead power line installation. It is suitable for OPGW cables with a maximum diameter of 22mm and provides stable cable guiding during pulling operations.

As a compact and heavy-duty stringing block, this cable pulling block helps reduce cable surface wear, improve pulling stability, and support safe installation of fiber optic ground wire in transmission line projects.

It is widely used in OPGW construction, overhead line installation, telecom cable pulling, and power line maintenance projects.

Problem

During OPGW and fiber optic cable installation, contractors often face the following problems:

• Cable surface damage during pulling

• High friction between cable and pulley

• Unstable cable guiding on poles or towers

• Risk of cable bending or twisting during stringing

• Low installation efficiency in overhead power line projects

These issues may lead to cable sheath damage, higher labor cost, longer installation time, and possible project delay.

Cause

The main causes of these problems include:

• Unsuitable pulley size for the OPGW cable diameter

• Poor sheave surface causing friction and wear

• Weak frame structure under pulling tension

• Unstable guiding during overhead cable installation

• Incorrect pulley block selection for fiber optic cable work

For OPGW cable stringing, the pulley block must guide the cable smoothly while protecting the cable surface from excessive pressure and friction.

Solution

This 20kN single sheave fiber optic cable pulley block solves these problems by:

• 20kN rated load → suitable for power line and OPGW cable pulling operations

• Single sheave structure → easy to operate and suitable for straight-line cable guiding

• Max Ø22mm cable capacity → suitable for common OPGW and fiber optic cable installation

• Low-wear sheave design → helps reduce cable surface damage

• Heavy-duty frame construction → improves working stability during stringing

• Customizable design → can be adapted to different cable sizes and site requirements

This makes it a practical cable pulling block for contractors working on OPGW stringing and power line installation projects.

Specifications

How It Works

The cable pulley block guides the OPGW or fiber optic cable through a rotating sheave during pulling and stringing operations.

When the cable passes through the sheave:

• The pulley supports cable movement smoothly

• The rotating sheave reduces friction

• The cable is guided in the correct direction

• The low-wear design helps protect the cable surface

• The 20kN frame structure supports stable pulling work

This helps improve installation efficiency and reduces the risk of cable damage during overhead line construction.

Application

This 20kN OPGW stringing block is widely used in:

• OPGW cable stringing

• Fiber optic cable pulling

• Power line installation

• Transmission line construction

• Overhead line maintenance

• Telecom and utility cable projects

• Pole and tower cable guiding work

It is suitable for contractors, power construction companies, telecom installation teams, and utility maintenance projects.

How To Choose

Based on Cable Diameter

For OPGW or fiber optic cable up to Ø22mm, this 20kN single sheave pulley block is suitable for general cable guiding and pulling work.

Based on Pulling Load

For light to medium-duty OPGW stringing, 20kN rated load is suitable.
For larger conductor or higher pulling tension projects, a higher rated load pulley block should be selected.

Based on Structure

• Single sheave pulley block: Suitable for single cable guiding and straight-line pulling

• Multi-sheave pulley block: Suitable for bundle conductor or multi-line stringing projects

Based on Cable Protection

For OPGW and fiber optic cable, low-wear sheave design is recommended to help reduce cable sheath damage during installation.

Key Advantages

1. Suitable for Max Ø22mm OPGW Cable

The pulley block is designed for OPGW and fiber optic cable installation, suitable for cable diameter up to 22mm.

2. 20kN Heavy Duty Construction

The 20kN rated load provides stable support for power line cable pulling and overhead line installation.

3. Low Cable Wear

The sheave design helps reduce friction and protects the cable surface during stringing operations.

4. Easy Site Operation

The single sheave structure is simple to use, easy to install, and suitable for flexible field operation.

5. Customizable Design

Frame structure, hook type, sheave size, and cable guiding design can be customized according to project requirements.

FAQ

Q1: What is this OPGW cable pulley block used for?

It is used for guiding and pulling OPGW and fiber optic cables during power line installation and transmission line construction.

Q2: What is the maximum cable diameter?

This model is suitable for OPGW or fiber optic cable with a maximum diameter of 22mm.

Q3: What is the rated load?

The rated load is 20kN, suitable for light to medium-duty OPGW cable stringing operations.

Q4: Why is low cable wear important?

OPGW and fiber optic cables need surface protection during installation. A low-wear sheave helps reduce friction and prevents cable sheath damage.

Q5: Can the pulley block be customized?

Yes. The sheave size, frame structure, hook type, and cable guiding design can be customized according to project requirements.

Q6: Is this pulley block suitable for transmission line construction?

Yes. It is suitable for OPGW stringing, fiber optic cable pulling, overhead line installation, and power line maintenance projects.

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