Aluminum Alloy Insulated Conductor Gripper 10-30KN Come Along Clamp for Overhead

Product Specification

Aluminum Alloy Insulated Conductor Gripper 10-30KN for Overhead Line Stringing

Product Overview

The SKJL Series Aluminum Alloy Insulated Conductor Gripper (also known as Come Along Clamp or Cable Pulling Clamp) is a professional tool designed for overhead transmission line stringing, conductor sag adjustment, and cable fixing during power construction. Manufactured by Suntech Power in Ningbo, China, this conductor gripper is forged from high-strength aluminum alloy, offering an excellent balance of durability and lightweight portability. Available in five models covering rated loads from 10KN to 30KN and applicable conductor diameters from Φ10mm to Φ37mm, the SKJL series covers the full range of common transmission and distribution line requirements. The insulated design ensures that the conductor's insulation layer remains intact during clamping and tensioning operations, making it particularly suitable for modern insulated conductor applications.

Technical Specifications

Applications

· Overhead transmission line conductor stringing and sag adjustment

· Insulated conductor clamping and fixing during power line construction

· Tower-to-tower conductor tensioning for new line installation

· Distribution line maintenance and repair work

· Substation conductor pulling and positioning

· Optical fiber composite overhead ground wire (OPGW) installation support

Product Advantages

· Lightweight Aluminum Alloy Construction — Weighing only 1.4-5KG across the series, the gripper significantly reduces operator fatigue compared to steel alternatives. The forged aluminum alloy body provides strength comparable to steel at half the weight.

· Insulated Design Protects Conductors — The clamp body and gripping surface are engineered to prevent damage to the conductor insulation layer during tensioning, eliminating a common source of costly rework in modern insulated line installations.

· Wide Conductor Range Coverage — Five models cover LGJ25-70 to LGJ500-630 conductors and wire diameters from Φ10mm to Φ37mm, allowing a single series to support most standard transmission and distribution line specifications.

· High-Strength Forged Construction — The hot-forged aluminum alloy body delivers rated loads up to 30KN with a safety margin, ensuring reliable performance under heavy tensioning conditions.

· Simple One-Person Operation — The screw-adjustment mechanism allows quick clamping and release, reducing setup time between spans. Compact dimensions enable easy operation even in confined tower workspaces.

· Corrosion Resistant for Long Field Life — Anodized surface treatment provides protection against moisture, UV, and temperature extremes, ensuring long service life in outdoor storage and field conditions.

Frequently Asked Questions (FAQ)

Q: What is the difference between a conductor gripper and a come along clamp?

A: In practice, the terms are used interchangeably for this type of tool. Both refer to a device that grips and pulls or tensions a conductor during overhead line stringing. The SKJL series functions as both a conductor gripper and a come along clamp, suitable for sag adjustment and wire pulling operations.

Q: Can this gripper be used on bare (non-insulated) conductors?

A: Yes. While the gripper's design is particularly suited for insulated conductors (the smooth clamping surface will not damage the insulation layer), it can also be used on bare aluminum and steel-reinforced conductors (ACSR, AAC, etc.) without issue.

Q: How do I select the correct model for my conductor?

A: Match your conductor's LGJ designation or outer diameter to the specification table. For example, an LGJ-240 conductor (Φ20-Φ25mm) would use the SKJL-2 (Item 13212). When in doubt, select the model where your conductor diameter falls within the "Applicable Wire Diameter" range and ensure the rated load exceeds your maximum tensioning force.

Q: Does the gripper require special maintenance?

A: Minimal maintenance is required. Keep the screw mechanism clean and lightly lubricated. Rinse with fresh water after use in coastal or corrosive environments. Inspect the gripping surface periodically for wear. Annual recalibration is recommended for tools used in critical tensioning applications.

Q: What is the maximum conductor diameter this series can handle?

A: The largest model, SKJLA-3, accommodates conductors up to Φ37mm (LGJ500-630) with a maximum opening of 39mm.