Dropper Making Jig

A Dropper Making Jig is a specialized fabrication tool used in railway Overhead Equipment (OHE) installations to accurately prepare droppers—the vertical connectors between the contact wire and catenary wire. The jig enables precise measurement, bending, and cutting of the dropper wire as per the site-specific sag and span requirements.

This tool is crucial for maintaining the designed geometry of the overhead wire system, ensuring proper tension and height of the contact wire across the span. The jig is typically used in field workshops, depot areas, or site fabrication points during electrification works.

Key Features:

• Material: Heavy-duty steel or aluminum alloy body for durability and precision

• Function: Provides pre-marked guides or clamps for uniform dropper length and angle

• Compatibility: Suitable for copper, cadmium copper, or aluminum alloy dropper wires

• Adjustability: Scale markings or guides for setting different dropper lengths

• Portability: Compact and lightweight for on-site use

• Operation: Manual or semi-automatic depending on design

Applications in Railway Sector:

• Used in fabrication of OHE droppers as per sag chart or span data

• Essential tool for electrification contractors, TRD depots, and OHE maintenance teams

• Supports uniformity in dropper spacing, length, and quality control

Advantages:

• Enhances accuracy and consistency in dropper fabrication

• Reduces field errors and rework during stringing

• Lightweight, easy to handle at work sites

• Ensures proper electrical and mechanical performance of OHE