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10KN Four Sheaves Combined Block: OPGW & Fiber Optic Stringing Quadrant Block

Categories Conductor Stringing Blocks
Brand Name: Suntech
Model Number: SHZH
Certification: ISO9001
Place of Origin: Ningbo
MOQ: 1 PCS
Price: Negotiable
Payment Terms: L/C,T/T
Supply Ability: 500 PCS/Month
Delivery Time: 3-7days
Packaging Details: Plywood Case
Name: Four Sheave Combined Block
Model: SHZH
Rated Load: 10KN
Bend Radius: R570
Weight: 23.5KG
Warranty: 1 year
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10KN Four Sheaves Combined Block: OPGW & Fiber Optic Stringing Quadrant Block

10KN Four Sheaves Combined Block: OPGW & Fiber Optic Stringing Quadrant Block
The SHZHD10 Four Sheaves Combined Block is a precision-engineered stringing tool specifically designed for the installation of OPGW (Optical Ground Wire) and fiber optic cables. By adopting a four-sheave quadrant structure, this block ensures that delicate cables maintain a safe R570 bend radius during traction. This segmented design effectively distributes pressure, preventing signal loss or fiber breakage caused by sharp angles.
Technical Specifications

Manufactured under ISO9001 certification, this combined block provides high-load capacity with protective geometry:

Item NumberModelOutline Size (mm)Rated Load (KN)Bend Radius (mm)Weight (kg)
20141SHZHD10760 x 120 x 48010 KNR57023.5 kg
  • Applicable Optical Cables: Diameter below Φ22 mm
  • Applicable General Cables: Diameter below Φ60 mm
  • Structure: Combined type with four protective sheaves
Key Technical Advantages
  • Optimal Bend Radius Protection: The R570 bend radius is specifically calculated to exceed the minimum bending requirements of most OPGW and fiber optic cables, ensuring zero signal degradation
  • Four-Sheave Combined Design: Distributes the hauling tension across four independent sheaves, reducing localized mechanical stress on the cable jacket
  • Fiber-Safe Sheave Material: Equipped with smooth, non-metallic sheaves (typically nylon) to prevent abrasion and metallic contamination of the optical cable
  • High Load Stability: With a 10KN rated load, it handles significant pulling forces required for long-span transmission line projects
Applications
  • OPGW Stringing Operations: Steering and guiding OPGW cables through towers and angles
  • Fiber Optic Cable Installation: Safe deployment of telecommunication fiber optics in overhead utility grids
  • Power Line Communication (PLC) Projects: Installing communication-integrated grounding wires
Professional Buyer FAQ
Q1: Why is the R570 bend radius important for OPGW stringing?
Optical fibers are sensitive to micro-bending. The R570 radius ensures the cable transitions smoothly through the block without exceeding the critical bend limit, preventing internal fiber fractures.
Q2: Can this block accommodate larger power cables?
Yes. While optimized for Φ22mm optical cables, the sheave width allows for general power cables with a diameter up to Φ60mm.
Q3: How is the block secured during operation?
The unit features a heavy-duty central hanging eye, allowing it to be suspended from tower cross-arms or utility poles for reliable alignment.
Quality 10KN Four Sheaves Combined Block: OPGW & Fiber Optic Stringing Quadrant Block for sale
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