Hook Type Universal Stringing Blocks

The stringing blocks are used for overhead transmission line conductor stringing operation. It can be hanged or installed on cross arms.

1.Hook Type Universal Stringing Blocks

2.Material:Nylon,Aluminum

3.Rated Load:5,20KN

4.Used for overhead transmission line conductor stringing

Here listed all of stringing blocks that we are producing:

Large diameter conductor stringing blocks(508mm,660mm,822mm,916mm,926mm,1040mm)

Stringing rollers for single conductor

Tandem sheave conductor pulleys

Small bore conductor pulley block

Tri-bundle stringing block with pulley board

Stringing blocks for bundled conductors

Crossarm Mounted Pulley rollers

Aluminum Hold down stringing block

25-70mm² Earth Wire Stringing Blocks

Nylon Hook Type Universal Stringing Blocks

Conductor pulleys for angle use

Universal pulley used in Insulator string or fixed on the crossarm caliper

Conductor Stringing Pulley Block with grounding devices

150mm² Earth Wire ground wire Stringing Block

Two-sides Open Hoisting Tackle Blocks

Steel Hoisting Lifting Tackle Blocks

Aluminum Alloy Lifting Tackle

Grounding block for special use

  Hook type electricity induce elimination grounding pulleys

Hook Type Clip-in Sagging Tighten-up Pulley Blocks

Single Sheave Conductor sagging end pulleys Block

3Ton to 15Ton Hanging Point Hoisting Pulley Blocks

High Speed Wire Diverter Pulley Blocks

500kgs Hand Small Lifting Rope Pulley Blocks

Application: The block is used for conductor stringing operation. It could be used for suspension with the hook fitting, or used on cross arms.

Nylon sheave blocks are our best-selling stringing blocks.

The advantages of Nylon sheave blocks:

1.Light 

2.Wear resistant

3.Lower price

4.Nylon can effectively reduce the damage to conductors when stringing

5.Long lifespan.

Why we should use conductor stringing blocks?

In the age of electric and information, conductor line transmission becomes more and more necessary. Conductor stringing blocks can make line stringing more flexible and easily with its pulley wheels.

What characteristics should be included to be qualified stringing blocks?

1.       The design,manufacture and testing should be in compliance with the industry standard.

2.       The safty factor should ≥3

3.       The stringing block should be easy for maintenance

4.       The Friction coefficient should ≤1.015

5.       The stringing block can pass throuhj the running board, Connecting tube protector and rotary connectors smoothly.

6.       The steel wire sheave should be designed to reduce the damage to pilot stringing wire.

7.       The surface of the block should be smooth, no sharp corners, no sharp edges. There should be no parts trachoma, pores, cracks and porosity and other defects. Welds should be nice and smooth, no burrs, no cracks, no folding, no overheating or burning defetcs to lower the intensity

8.       The frame structure should be reasonable and firm,its strength and rigidity should be in accordance with the requirements. It should be made of high-strength materials to reduce the overall weight of the multiple sheaves block.The joints should be set with safe stop device, and ease of disassembly. A reasonable ceiling hanging ring is necessary too.