What Is Drop Wire Clamp?

A drop wire clamp is a specialized device designed to anchor and secure fiber optic drop cables during the deployment of aerial fiber optic networks. It allows safe attachment of cables to poles, walls, facades, or messenger wires without damaging or bending the cable, while withstanding:

• Cable tensile strength
• Wind loads
• Environmental impacts such as UV exposure, rain, and temperature changes

With a stable and durable grip, drop clamps are widely used in FTTH, FTTx, CATV, and telecom applications to ensure reliable last-mile connectivity.

How to Use a Drop Clamp?

1. Place the fiber cable inside the groove of the drop wire clamp.
2. Secure it gradually with the shim, wedge, or wheel provided, ensuring the cable is fixed without movement.
3. Attach the clamp to the pole bracket or wall-mounted hardware at the aerial point.

⚠️ Important:

• Always check the clamp groove matches your cable size.
• Verify the cable’s rated mechanical strength to avoid exceeding its minimal breaking load.
• Improper installation may damage the cable or reduce service reliability.

How to Choose the Right Drop Clamp?

When selecting a drop wire clamp, consider:

• Cable shape: round, flat, or figure-8
• Cable diameter and jacket material
• Mechanical tension load & bending radius
• Installation environment: short-span, medium-span, or long-span aerial lines

A properly chosen clamp will secure the cable without damage, while providing sufficient mechanical strength. In case of accidents (such as wind or ice load), the clamp may release the cable to protect the fiber signal.

Applications of Drop Wire Clamps

Drop wire clamps are mainly used for:

• Securing fiber drop cables to poles, walls, or facades
• Attaching last-mile drop cables in FTTH and CATV networks
• Aerial cable spans with messenger strands
• Home or building cable entry points

Thanks to their stainless-steel bail and UV-resistant polymer body, these clamps ensure long service life and consistent performance.

Types of Drop Wire Clamps

Different aerial deployments require different clamp designs:

• Flat cable drop clamps – for flat optical fiber cables
• Round cable drop clamps – for round optical fiber cables
• S-type clamps – secure messenger wire of drop cables
• Wedge-type clamps – fast installation, suitable for various cable shapes
• Last-mile clamps – designed for end-user connections

Each clamp type is engineered for specific cable dimensions and mechanical performance requirements.

Special Clamp Designs

FTTH S Fix Drop Wire Clamp

• Made of UV-resistant polymer with a stainless-steel bail
• Designed in an S-shape for quick messenger wire attachment
• Offers high dielectric strength, protecting customers from electrical risks

S-Type Drop Clamp

• Designed to secure messenger wire with a durable S-groove
• Provides high mechanical strength even under harsh conditions
• Ideal for preventing wind galloping and vibration-related damage

Best Clamp for GJYXCH Drop Cable

The S-type clamp is the best choice for GJYXCH drop cables, thanks to:

• Durability and easy installation
• Stainless-steel bail + UV-resistant body
• Long lifespan and cost-effectiveness

Why Choose Jera-Fiber Drop Wire Clamps?

• 10+ years of expertise (since 2012) in manufacturing drop wire clamps
• Full in-house production with advanced equipment in Ningbo, China
• Factory laboratory for mechanical, UV, and environmental testing
• OEM & Custom Branding options available
• Competitive pricing due to optimized supply chain and raw material sourcing

Jera Line has successfully supplied drop clamps for global FTTH projects across Europe, Asia, the Middle East, and the Americas.

Who Produces Drop Wire Clamps in China?

Unlike many resellers, Jera Line is a direct manufacturer specializing in:

• Drop wire clamps
• Fiber optic termination boxes
• Aerial drop cables and related accessories

This guarantees consistent quality, fast delivery, and technical support.

Conclusion

Drop wire clamps are essential components in aerial fiber optic networks, ensuring secure, long-lasting, and safe installation of drop cables.

If you are looking for reliable, factory-direct drop wire clamps, Jera Line is your trusted partner.

Contact us today to request samples, technical datasheets, or a quotation. Our engineering team is ready to support your project.