GTL Copper Aluminium Connecting Tubes | Bi-metal Friction Welding Power Connectors | XLUIG
PRODUCT PARAMETERS
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Friction Welding Mastery: Advanced molecular bonding technology ensures a permanent, zero-resistance transition between copper and aluminium.
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Industrial Material Grade: Crafted from 99.9% Pure T2 Copper and high-conductivity L3 Aluminium for elite electrical performance.
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Vast Application Range: Full GTL series availability supporting conductor sizes from 10mm2 up to 630mm2.
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Pre-Filled Protection: Each tube is internally coated with professional joint grease to prevent contact surface oxidation.
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Heavy-Duty Build: Engineered with optimized wall thickness for high-pressure hydraulic crimping without structural deformation.
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Transition Specialist: Specifically designed for connecting aluminium cables to copper busbars or terminals in industrial power grids.
Description
Premium GTL Copper Aluminium Connecting Tubes by Xluig. Engineered with advanced friction welding technology for seamless power transition. Durable, oxidation-resistant, and ideal for 10-630mm2 electrical wiring.
Dimensions
Data Overview
| Catalog No. | d1 (mm) | D1 (mm) | d (mm) | D (mm) | L1 (mm) | L2 (mm) | L (mm) |
| GTL-16 | 5.0 | 9.0 | 5.5 | 10.0 | 32.0 | 30.0 | 75.0 |
| GTL-35 | 7.0 | 11.0 | 8.5 | 14.0 | 40.0 | 30.0 | 90.0 |
| GTL-70 | 9.7 | 15.0 | 11.5 | 18.0 | 47.0 | 38.0 | 105.0 |
| GTL-150 | 15.0 | 21.0 | 16.5 | 25.0 | 55.0 | 44.0 | 118.0 |
| GTL-240 | 18.5 | 26.0 | 21.0 | 30.0 | 60.0 | 50.0 | 130.0 |
| GTL-500 | 27.0 | 34.0 | 29.5 | 42.0 | 75.0 | 65.0 | 165.0 |
| GTL-630 | 29.0 | 38.0 | 34.0 | 54.0 | 80.0 | 70.0 | 180.0 |
Product Features & Engineering Logic
| Engineering Feature | Technical Advantage | Professional User Benefit |
| Molecular Friction Welding | Creates a unified molecular bond that eliminates the galvanic corrosion interface. | Power Safety: Prevents junction overheating and power loss in critical high-voltage distribution. |
| Bi-metallic Hybrid Design | Merges copper’s superior conductivity with aluminium’s cost-efficiency and lightweight properties. | Project Profitability: Drastically reduces infrastructure material costs without compromising technical safety standards. |
| Internal Oxidation Barrier | Factory-applied grease seal protects the aluminium contact surface from moisture and air. | Lower Maintenance: Ensures a gas-tight, reliable connection that remains stable for the entire 25-year service life. |
| Calibrated Barrel Dimensions | Standardized inner and outer diameters (d, d1, D) ensure compatibility with all industrial crimp dies. | Installation Efficiency: Minimizes labor time and ensures consistent, professional terminal quality across large projects. |
FAQs
Q: Why is “Friction Welding” better than simple mechanical joining for bi-metal tubes?
A: Simple mechanical joining can leave micro-gaps that lead to galvanic corrosion between copper and aluminium. Friction Welding creates a vacuum-sealed molecular bond. This ensures 100% conductivity at the junction and prevents high-resistance issues common in low-quality transition terminals.
Q: Can Xluig’s GTL connectors be used in outdoor substations?
A: Yes. Our GTL series is designed for durability in industrial environments. However, for extreme outdoor conditions, we recommend using heat-shrink tubing or additional joint compound to provide a secondary environmental seal against moisture.
Global Projects Reference Table
| Size Category | Sample Models | Typical Application Scenarios | Target Projects |
| Light Duty Power | GTL-16, GTL-25, GTL-35 | Transitioning aluminum branch wires to copper terminals in industrial control panels. | Commercial Building Distribution, PLC Control Cabinets, Residential Power Upgrades. |
| Medium Energy Systems | GTL-50, GTL-70, GTL-95, GTL-120 | Connecting aluminum DC cables to copper busbars in solar inverters and wind turbine towers. | Solar PV Farms, Wind Power Infrastructure, Containerized Energy Storage Systems (BESS). |
| Industrial Heavy Duty | GTL-150, GTL-185, GTL-240 | Transitioning large aluminum feeder cables in chemical plants and mining power distribution hubs. | Heavy Industrial Parks, Municipal Grid Modernization, Data Center Power Rooms. |
| Grid-Scale Utility | GTL-400, GTL-500, GTL-630 | Ultra-high capacity transitions for primary aluminum conductors in high-voltage substations. | High-Voltage Substations, Cross-Regional Transmission Lines, Railway Traction Power Systems. |
Product Attributes
| Property | Details |
| Industry | Industrial Fastener |
| Brand Name | XLUIG (Kunshan Xinluan New Material Technology Co., Ltd) |
| Place of Origin | Jiangsu, China |
| Certificate | ISO 9001:2015 Certified |
| Thread Size | Customized sizes available |
| MOQ | 5,00 Pieces |
| OEM / ODM | Support (Based on technical drawings) |
| Samples | Available upon request |
Supply Ability
| Service Items | Details & Specifications |
| Packaging | Small boxes, plastic bags, bulk cartons, and wooden pallets |
| Supply Ability | 50,000,000 Piece/Pieces per Month |
| Transportation | Land, Ocean, Air, and Express Delivery |
| Port of Loading | Shanghai, Ningbo, Tianjin |
| Payment Type | T/T |
| Incoterm | FOB, CIF, EXW, DDP |