660mm Diameter Triple-Sheave Nylon Stringing Block for Pilot Wire Rope Transmission Line Stringing Tool
Price:
Negotiable
MOQ:
1set
Delivery Time:
25-35 days
Brand:
XINYA
Product Description
660mm Triple-Sheave Nylon Stringing Block for Pilot Wire Rope
Professional overhead line stringing tool designed for transmission line construction applications.
Product Overview
The 660mm 3-Sheave Nylon Stringing Block is engineered specifically for pilot wire rope guiding during overhead transmission line construction. Featuring a three-sheave design with high-strength nylon wheels, this tool ensures smooth rope running, reduced friction, and superior protection during conductor or pilot rope stringing operations. Ideal for 110kV-500kV line projects, this block is widely used for rope traction from tower to tower before pulling conductors.
Product Definition
A Stringing Block is a wheel-type guiding tool used for pulling pilot wire rope or conductors along power transmission lines. This model features 660mm outer diameter nylon sheaves with a three-groove design for stable rope guiding, suitable for steel pilot rope, PP rope, and synthetic pulling rope applications.
Key Features
- Triple-Sheave Design: Three grooves ensure stable rope guiding without jumping or twisting
- High-Density Nylon Sheaves: Low friction, wear-resistant construction that's gentle on rope surfaces
- Reinforced Aluminum Alloy Frame: Lightweight yet high-strength structure for safety in heavy-duty field use
- Smooth, Low-Resistance Bearings: Improves pulling efficiency and reduces load on tensioners and pullers
- Wide Rope Compatibility: Ideal for steel pilot wire rope, PP rope, composite rope, and traction lines
Product Advantages
- Reduced wear on pilot rope with nylon grooves that prevent friction burn and minimize rope deformation
- High working load capacity suitable for mountain or long-span line applications
- Lightweight design for easy tower mounting and quick installation
- Versatile application for both pilot rope guiding and small conductor pulling
- Customizable options including groove diameter, frame type, hook connection, and grounding roller
Applications
- Pilot rope stringing for 110kV / 220kV / 330kV / 500kV transmission lines
- Tower-to-tower rope pulling operations
- Conductor and OPGW preliminary guiding
- Long-distance and mountain terrain line construction
- Use with hydraulic pullers and tensioners
Technical Specifications
| Product No. | Model Type | Rated Load (KN) | Applicable Conductor ACSR (mm²) | Weight (kg) | Sheave No. | Outside Dia*Groove Dia* Sheave Width (mm) |
|---|---|---|---|---|---|---|
| 80317 | SHDN-660*100 | 20 | ≤500 | 20 | 1 | Φ660*Φ560*100 |
| 80320 | SHSQN-660*100 | 40 | 85 | 3 | ||
| 80321 | SHWQN-660*100 | 60 | 110 | 5 |
Frequently Asked Questions
Q1: Can the sheave material be changed to aluminum?
Yes. We provide aluminum sheaves, MC nylon, or rubber-lined grooves upon request.
Q2: What rope diameter is compatible?
We can customize the groove to match 8-18mm pilot rope or your project specifications.
Q3: Can the working load be upgraded?
Yes, working load can be adjusted from 20kN to 60kN depending on frame design.
Q4: Do you supply matching pullers and tensioners?
Yes. We can supply full sets of stringing equipment for turnkey projects.
Q5: What is the typical lifespan?
Normal working conditions allow 8-12 years of service life.
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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