822mm Large-Diameter Heavy-Duty Cable Pulley Block with Nylon Wheel for Overhead Line Construction
Price:
get latest price
MOQ:
1pc
Delivery Time:
10 workdays after payment
Brand:
XINYA
Product Description
822mm Large-Diameter Cable Pulley Block
Heavy-duty stringing block designed for guiding and supporting conductors during overhead transmission line construction operations.
Product Overview
The 822mm Large-Diameter Cable Pulley Block is engineered for guiding and supporting conductors during overhead transmission line stringing operations. With its extra-large 822mm sheave diameter and reinforced frame, it ensures smooth conductor passage, reduced friction, and excellent mechanical stability for medium- and high-voltage power line projects. Ideal for long-span, mountain, and high-load stringing applications.
Product Definition
A cable pulley block is a specialized guiding device used during conductor installation. This heavy-duty model features:
- Large 822mm sheave for reduced bending stress
- Heavy-duty frame construction for maximum durability
- Compatibility with various conductor types including ACSR, AAAC, ACCC, and OPGW
Designed for use with pulling machines, tensioners, and pilot rope systems.
Key Features
- Extra-Large 822mm Sheave: Provides wide guiding radius to protect conductor surface and improve pulling efficiency
- Heavy-Duty Frame Structure: Built for strength and stability in demanding overhead line environments
- Smooth Low-Friction Bearings: Ensures consistent rotation, reduces pulling resistance, and supports long-distance stringing work
- Versatile Conductor Compatibility: Suitable for single or bundled conductors depending on groove customization
- Optional Custom Configurations: Available options include groove material, hook styles, grounding rollers, and special coatings
Product Advantages
- Reduced Stress on Conductors: Larger diameter minimizes conductor bending and surface abrasion
- Built for Harsh Field Conditions: Ideal for mountain terrain, long-span towers, and high-tension applications
- Long Service Life: Durable materials and sealed bearings provide extended operational use
- Compatible With All Major Stringing Equipment: Works with hydraulic tensioners, pullers, pilot ropes, swivels, and overhead line accessories
- Safe and Efficient Stringing: Stable frame geometry ensures reliable conductor guidance under heavy loads
Applications
- Conductor installation for 110kV, 220kV, 330kV, 500kV transmission lines
- Single or bundled conductor stringing operations
- OPGW and ADSS cable guiding
- Long-span and mountain line construction
- Tower-to-tower pulling operations
- Use with pullers, tensioners, and pilot rope systems
Technical Specifications
| Item Number | Model | Number of Sheave | Rated Load (KN) | Weight (kg) | Features of Sheave |
|---|---|---|---|---|---|
| 10141 | SHDN822 | 1 | 30 | 40 | MC Nylon sheave |
| 10142 | SHSQN822 | 3 | 60 | 118 | Middle: cast steel sheave Conductor: MC Nylon wheel |
| 10143 | SHWQN822 | 5 | 120 | 180 | Middle: cast steel sheave Conductor: MC Nylon wheel |
| 10146 | SHQ822 | 7 | 120 | 285 | Middle: cast steel sheave Conductor: MC Nylon wheel |
| 10148 | SHJ822 | 9 | 150 | 445 | Middle: cast steel sheave Conductor: MC Nylon wheel |
Frequently Asked Questions
Can the sheave be aluminum, nylon, or rubber-lined?
Yes, all three options are available based on project requirements.
Can the block handle bundled conductors?
Yes, custom groove spacing and widths are available for 2-4 bundled conductors.
What is the maximum working load?
Standard models range from 40-80 kN, and we can upgrade based on your project needs.
Is the block compatible with grounding devices?
Grounding rollers and clamp-type grounding kits are optional.
Do you provide matching stringing equipment?
Yes, we offer tensioners, pullers, pilot ropes, swivels, rollers, and complete stringing tool sets.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Changshu Xinya Machinery Manufacturing Co., Ltd.
Location
Yongfu Road, Yetang Town District , Shanghu Town, Changshu, Suzhou, Jiangsu, China (Mainland)
Contact Person
Wendy