Changshu Xinya Machinery Manufacturing Co., Ltd.
| Payment Terms | L/C,T/T,Western Union |
| Delivery Time | 10-20 days |
| Packaging Details | 1000 sets per month |
| selling point | large diameter |
| Wheel diameter | 508/660/750/822/916/1040 |
| Weight | 20-220kg |
| Application | Power Line Construction |
| Material | Steel |
| Product Name | Heavy-Duty Aluminum Nylon Conductor Pulley Blocks for Double & Triple Bundles |
| Surface Treatment | Galvanized |
| Type | Stringing Tools |
| Warranty | 1 Year |
| Brand Name | XINYA |
| Model Number | SH3Z |
| Certification | ISO |
| Place of Origin | Jiangsu,China |
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Product Specification
| Payment Terms | L/C,T/T,Western Union | Delivery Time | 10-20 days |
| Packaging Details | 1000 sets per month | selling point | large diameter |
| Wheel diameter | 508/660/750/822/916/1040 | Weight | 20-220kg |
| Application | Power Line Construction | Material | Steel |
| Product Name | Heavy-Duty Aluminum Nylon Conductor Pulley Blocks for Double & Triple Bundles | Surface Treatment | Galvanized |
| Type | Stringing Tools | Warranty | 1 Year |
| Brand Name | XINYA | Model Number | SH3Z |
| Certification | ISO | Place of Origin | Jiangsu,China |
| High Light | aluminum nylon stringing pulley blocks ，conductor stringing pulley blocks ，105kn conductor stringing blocks | ||
Heavy-Duty Aluminum Nylon Conductor Pulley Blocks for Double & Triple Bundles | 40–105kN Line Stringing Tools
1. Overview
The Aluminum–Nylon Stringing Pulley Blocks are specially designed for overhead transmission line construction, ideal for double and triple bundled conductors (300–900mm²). With a working load range of 40–105kN, these pulley blocks ensure smooth conductor handling, reduced friction, and high reliability during stringing operations.
They are widely used in 110kV–500kV line projects, providing stable guiding and protection for conductors and OPGW during installation.
2. Definition
A Stringing Pulley Block is a wheel-based guiding device used during conductor installation to reduce friction and prevent conductor damage.
This model features:
Aluminum alloy frame for strength
High-density nylon sheaves for low friction
Compatible with two- or three-bundled conductors
3. Key Features
Durable Aluminum Alloy Frame
Provides excellent strength-to-weight ratio, corrosion resistance, and long service life.
Nylon Sheave with Smooth Rotation
Low friction coefficient
Prevents scratching or deformation of conductors
Ideal for ACCC / ACSR / AAAC lines
40–105kN Working Load
Suitable for medium and heavy-duty line stringing operations.
Support 2–3 Bundled Conductors
Stable guiding for double or triple conductor arrangements.
High-Quality Bearings
Ensures smooth rotation and reduces pulling resistance, improving construction efficiency.
Optional: Grounding Device / Lining Protection
Customizable depending on project requirements.
4. Advantages
High Strength & Lightweight
Aluminum alloy housing provides rigidity while reducing overall weight.
Reduced Conductor Wear
Nylon groove protects the surface of conductors and OPGW.
Lower Friction, Higher Efficiency
Professional bearing design reduces pulling force requirements.
Compatible with Most Transmission Line Projects
Applicable for 300–900mm² conductors and 40–105kN hydraulic tensioners.
Reliable for Long-Distance Stringing
Stable structure ensures consistent performance under continuous load.
6. Applications
Three sheaves Helicopter Stringing Blocks
| Item No. | Model | ACSR Size Range (mm²) | Working Load (KN) | Weight (kg) | Material of Sheave |
| 10102H | SH3Z508 | 300-400 | 40 | 61 | Central steel or Nylon sheave, Side sheave Aluminum lined with neoprene |
| 10105H | SH3ZL508 | 300-400 | 40 | 47 | |
| 10122H | SH3ZL660 | 400-500 | 40 | 106 | |
| 10125H | SH3ZLN660 | 400-500 | 40 | 92 | |
| 10146H | SH3ZLN822 | 500-700 | 60 | 128 | |
| 10107H | SH3Z508 | 300-400 | 40 | 43 | Nylon, optional can be lined with neoprene |
| 10127H | SH3Z660 | 400-500 | 40 | 76 | |
| 10132H | SH3Z750 | 500-600 | 60 | 98 | |
| 10142H | SH3Z822 | 600-700 | 60 | 110 | |
| 10152H | SH3Z916 | 700-800 | 75 | 126 | |
| 10166H | SH3Z1040 | 800-900 | 105 | 200 |
FAQ
Q1: Can the pulley blocks be customized?
Yes, we offer custom sizes, groove types, grounding rollers, and connection fittings.
Q2: Are nylon wheels suitable for heavy conductors?
Yes. Engineering-grade nylon provides excellent wear resistance and minimizes conductor damage.
Q3: What conductor types are compatible?
ACSR, AAAC, ACCC, OPGW, and similar overhead conductors.
Q4: How long is the service life?
Typically 8–15 years, depending on usage frequency and environmental conditions.
Q5: Do you provide matching tools (tensioner, puller, rollers)?
Yes. We offer a full set of stringing equipment for turnkey solutions.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Trading Company,Seller
Year Established:
1983
Total Annual:
3000000-4000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Changshu Xinya Machinery Manufacturing Co., Ltd.is located in the beautiful and rich Chinese historical and cultural city - Changshu, Jiangsu. It is on the east of Shanghai, on the southern edge of Suzhou, west of Wuxi, north of the Yangtze River.It is convenient for transportation. &nbs... Changshu Xinya Machinery Manufacturing Co., Ltd.is located in the beautiful and rich Chinese historical and cultural city - Changshu, Jiangsu. It is on the east of Shanghai, on the southern edge of Suzhou, west of Wuxi, north of the Yangtze River.It is convenient for transportation. &nbs...
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