Durable High Speed Turning Block Reduces Friction and Prevents Cable Damage at Sharp Bends
Product Details:
| Place of Origin: | Ningbo |
| Brand Name: | Suntech |
| Certification: | ISO |
| Model Number: | THZ |
Payment & Shipping Terms:
| Minimum Order Quantity: | 1 PCS |
|---|---|
| Price: | Negotiable |
| Packaging Details: | Plywood Case |
| Delivery Time: | 3-7days |
| Payment Terms: | L/C,T/T |
| Supply Ability: | 3000 PCS/Month |
|
Detail Information |
|||
| Name: | High Speed Turning Block | Model: | THZ1-5 |
|---|---|---|---|
| Rated Load: | 50-300KN | Sheave Dia: | 308-916mm |
| Sheave Wid: | 75-110mm | Weight: | 22-200KG |
| Highlight: | Durable High Speed Turning Block,Reduces Friction Conductor Stringing Block,Prevents Cable Damage Cable Pulling Block |
||
Product Description
Durable High Speed Turning Block for Reducing Friction and Cable Damage at Sharp Bends
| Item number | Model | Rated Load(KN) | Sheave Diameter(mm) | Sheave Width(mm) | Weight(kg) | Remark |
| 12141 | THZ1-5 | 50 | Φ308 | 75 | 22 | Steel Sheave |
| 12141A | THZ1-8 | 80 | Φ308 | 110 | 30 | |
| 12142 | THZ1-16 | 160 | Φ600 | 110 | 115 | |
| 12143 | THZ1-30 | 300 | Φ916 | 110/125 | 200 |
The High-Speed Turning Block is a specialized, high-performance rigging component engineered to facilitate smooth, low-friction directional changes for cables and ropes during high-speed or high-tension pulling operations. Unlike standard rollers, it is specifically designed to handle the increased heat, rotational speed, and dynamic loads generated when cables are pulled rapidly over long distances or around bends with significant force. Featuring a robust frame housing precision bearings and a smooth, often hardened or composite sheave, this block minimizes rotational resistance and heat buildup. Its primary function is to allow the cable to change direction efficiently while protecting the cable jacket from abrasion, preventing excessive pulling tension, and enabling faster, more productive installation cycles. This tool is indispensable for modern cable installation projects where speed, efficiency, and cable protection are paramount, such as in long-haul fiber optic deployments, large-scale power cable pulls, and congested urban duct networks.
-
Enables Efficient High-Speed Cable Pulling: The core design purpose is to support operations where cables are installed using high-speed winches or jetting techniques. Standard rollers can overheat or fail under these conditions. The high-speed block's advanced bearing system and optimized sheave design allow it to rotate freely at high RPMs with minimal friction, preventing slowdowns and equipment strain that would otherwise limit pulling speed and project progress.
-
Dramatically Reduces Friction and Heat Buildup: Friction is the enemy of both speed and cable integrity. As cable speed increases, so does frictional heat at contact points. This block is engineered with low-friction bearings and often a lubricated or composite sheave that dissipates heat effectively. This reduction in friction directly translates to lower required pulling force, less wear on the cable jacket, and the ability to maintain higher speeds over longer distances without damaging the cable or the equipment.
-
Protects Cable Jackets at Critical Bend Points: During high-speed pulls, the cable experiences significant sidewall pressure when changing direction. The turning block's smooth, contoured sheave is designed to cradle the cable, distributing this pressure evenly. This prevents the concentrated scraping and gouging that can occur with inferior blocks, thereby preserving the cable's outer sheath, its waterproofing, and its long-term mechanical and electrical integrity.
-
Facilitates Longer Continuous Pulls: By minimizing resistance at directional changes, the high-speed turning block allows for much longer uninterrupted pulls. Crews can set up a series of these blocks along a complex route, creating a low-friction "highway" for the cable. This eliminates the need for multiple stops and splices, which is a major time and cost savings, especially in fiber optic installations where splices degrade signal quality.
-
Essential for Modern Fiber Optic Cable Installation: The deployment of long-distance and micro-duct fiber optic cables frequently relies on high-speed blowing or jetting techniques. The cable is propelled through ducts by compressed air at high velocity. High-speed turning blocks are critical for guiding the cable smoothly around corners in the duct network during this process, preventing snags and micro-bend losses that can severely impact optical performance.
-
Durable Construction for Demanding Applications: Built to withstand the stress of high-speed operation, these blocks are constructed from high-strength aluminum alloys or composite materials. They incorporate sealed, high-capacity bearings that are lubricated for life to prevent contamination and ensure reliable performance in dirty or wet field conditions encountered in trenching and duct work.
-
Improves Overall Project Efficiency and Safety: Faster cable installation reduces the time crews spend on the job site, lowering labor costs and exposure to worksite hazards. The predictability and smooth operation of high-speed blocks also make the pulling process safer by reducing the risk of sudden cable snags or equipment failures that can cause injuries.
-
A Key Tool for Urban and Congested Right of Way Projects: In dense urban environments, cable routes are complex with many bends. Using high-speed turning blocks at these bends is essential for maintaining momentum and achieving the installation rates needed to complete projects within tight traffic control windows and municipal permits, minimizing public disruption.
-
A Smart Investment for Contractors and Utilities: While a specialized tool, the high-speed turning block delivers a rapid return on investment through dramatically improved productivity. The time saved on a single long-distance pull can outweigh the cost of the equipment. It enables contractors to bid more competitively on projects requiring speed and allows utilities to restore service or expand networks faster.
-
The Standard for Professional, High Volume Cable Installation: The use of high-speed turning blocks represents the adoption of professional-grade tools for modern cable installation challenges. It signifies a contractor's capability to handle large-scale, efficient projects and a commitment to installing cable infrastructure that meets the highest standards of performance and reliability.
In summary, the High-Speed Turning Block is a critical enabler for the fast-paced world of modern cable infrastructure deployment. It is not merely a passive guide but an active component that manages the physics of high-speed pulling. By solving the problems of friction, heat, and cable guidance at velocity, it allows the industry to build the networks of tomorrow with the speed and quality demanded today.
Want to Know more details about this product






