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Explore Our Braided Copper Solutions

The SHZHJ EMD 8446413 is a precision-engineered replacement electrical contact for EMD diesel-electric locomotives. Installed in main contactors and relay assemblies, it handles circuit switching under demanding traction conditions including high inrush currents, continuous vibration, and wide temperature fluctuations. The silver-alloy contact tip provides low contact resistance and high arc erosion resistance, ensuring reliable performance and an extended service life as a direct drop-in replacement for the original EMD part.

Flat Copper Braided Busbars

Round Copper Braided Ropes

Multi-Layer flexible braided copper busbar

High-Current Tinned Copper Stranded Flexible braided copper busbar

Integrated Tinned flexible braided copper busbar

Copper busbar with different lug

Technical Data & Engineering Specifications

	C11000/Cu-ETP	C10200	C10100
Cu purity	≥99.9%	≥99.95%	≥99.97%
Conductivity %IACS	97	98	101

Note: Generally processed using soft annealed pure copper wires or oxygen-free copper wires. Hard-drawn wires are available upon request for special structural conditions.

Dimensional & Structural Capabilities

Cross-Sectional Area (CSA): From ultra-compact 1.5 mm² scaling up to massive heavy-duty 6,000 mm² assemblies.

Finishing & Advanced Customization

Surface Plating Options:

1.Bare Copper: High conductivity for standard environments.

2.Tin Plating (Most Common): Enhances oxidation and corrosion resistance, perfectly maintaining continuous conductivity in humid or coastal environments.

3.Silver Plating: Maximum possible conductivity, optimized for extreme low-resistance applications.

4.Nickel Plating: Superior thermal stability and wear protection.

Terminal & End Styles:

1. Supports standard industrial terminal lugs (SC, RNB, JG, UT, OT, DT, AWG series), brass/copper custom stamped terminals, or advanced molecularly fused/welded ends.

2. Protective Accessories:Supports custom fluid-resistant plastic coatings, heavy-duty insulation tubing, and heat-shrinkable sleeves.

Our Rigorous 10-Step Manufacturing Process

In-House Wire Drawing

Drawing premium T2 copper rods into ultra-fine copper strands of customized diameters.

Precision Braiding & Stranding

Interweaving multiple fine copper strands into heavy-duty flat strips or round ropes.

Digital Cutting-to-Length

Automated, high-precision cutting to meet customers' exact dimensional blueprints.

End Surface Preparation

Rigorous cleaning and surface treating of the terminal zones to prepare for welding.

Copper Tube Sleeving & Crimping

Sleeving terminal ends with heavy-walled copper tubes to ensure a secure mechanical bond.

Molecular Diffusion / Press-Welding

Applying extreme pressure and heat to solid-fuse the terminations for ultra-low resistance.

Edge Trimming & Deburring

Trimming excess material to deliver a smooth, clean, and completely burr-free finish.

Precision Punching & Drilling

Creating mounting bolt holes perfectly aligned with the customer's interface specs.

100% Comprehensive Quality Inspection

Rigorous electrical conductivity mapping, dimensional profiling, and workmanship verification.

Export Packing & Shipping

Secure anti-oxidation packaging and logistics management for safe global transit.

Why Global Engineers Choose Us

In a market flooded with low-tier compromises, we uphold strict technical boundaries to safeguard your critical electrical infrastructure.

100% Virgin Copper Guarantee (Rejecting Recycled Materials)

Our Standard: We exclusively process brand-new, virgin copper rod inputs and provide certified material MTRs with every batch.

The Risk We Eliminate: Low-market bids often rely on recycled scrap copper, which suffers from hidden impurities and microscopic embrittlement. While they look identical on the surface, they pose catastrophic long-term cracking and resistance-spike risks.

Uniform Tension Braiding (Zero Broken Strands)

Our Standard: Our automated braiding lines maintain perfectly calibrated wire tension and uniform weave density, ensuring a flawless, smooth outer profile.

The Risk We Eliminate: Every single meter undergoes rigid post-braid optical inspections to guarantee zero surface burrs and zero broken strands, preventing field fraying under vibration.

Micro-Dense Terminal Crimping (Airtight Solid Junctions)

Our Standard: Our hydraulic crimping achieves near-molecular compaction. When our crimped terminations are cross-sectionally cut, the individual wire boundaries are virtually invisible—forming a single, ultra-low resistance copper mass.

The Risk We Eliminate: Poorly crimped alternatives leave internal air gaps that cause rapid oxidation, localized overheating, and eventual terminal detachment.

Ultimate MRO Agility: 1-Piece MOQ & Rapid Lead Times

Prototype Friendly: Minimum Order Quantity is 1 piece. We fully support your engineering trials and R&D stages.

Swift Turnaround: Standard samples (requiring no custom tooling) are dispatched within 1 week. Full-scale mass production volumes are typical delivered within 1 month, fully optimized to your project timeline.

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