Integrated Technical Ecosystem

150,000
Advanced Manufacturing Footprint
4Core Divisions
Technical Excellence Centers
ISO/IEC 17025
Laboratory Standards Compliance

LLT has established a sophisticated technical ecosystem organized into four specialized divisions that form the core of our innovation capabilities: the Connector Electrical Contact Research & Structural Design Department, the UL/TUV Certified Performance Verification Laboratory, the Precision Connector Manufacturing Workshop, and the Advanced Wire Assembly Division.

This vertically integrated structure enables continuous innovation in both materials and design methodology, ensuring seamless transition from concept to production while maintaining rigorous quality standards across all product lines.

Research and Design Department

Connector Research & Design Department

Our specialized R&D center focuses on advanced electrical contact physics and structural engineering. The team employs computational simulation and rapid prototyping to develop next-generation connector architectures with superior mechanical integrity and signal integrity characteristics.

UL/TUV Certification Laboratory

UL/TUV Certification Laboratory

Our in-house verification laboratory operates to ISO/IEC 17025 standards with comprehensive testing capabilities for environmental simulation, mechanical durability, and electrical performance. This facility enables rapid certification pathways for new products while maintaining continuous quality monitoring for production lines.

Connector Manufacturing Workshop

Connector Manufacturing Workshop

Featuring over 30 precision injection molding systems and advanced metalworking equipment, our connector production facility maintains micron-level tolerances across high-volume manufacturing operations. Automated assembly and real-time quality monitoring ensure consistent product integrity.

Wire Assembly Division

Wire Assembly Division

Our specialized connector wire soldering workshop combines precision automation with skilled craftsmanship to deliver consistently reliable electrical connections. Advanced potting technologies provide enhanced environmental protection for the most demanding application scenarios.

Comprehensive Product Matrix

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IP68+
Waterproof Rating
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-40°C~135°C
Temperature Range
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20G
Shock Resistance
🏆
UL2238
Certification Standard

Empowered by 200+ national patents, LLT has established a comprehensive product matrix of IP65~IP68+ sealing cable connection technologies for all scenarios. Our products feature ultra-wide temperature resistance, 20G mechanical shock tolerance, and deep-sea grade anti-corrosion protection systems, conforming to UL2238 and CE+TUV international certification standards.

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Circular Cable Connectors

Traditional M8-M25 series with advanced sealing technology

IP68 Waterproof 360° Shielding Self-locking

New Energy Connectors

Photovoltaic and energy storage solutions

1500V DC IP67 Rating Fire Resistant
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Junction/Distribution Boxes

Multi-port connectivity solutions for complex systems

Multi-channel Customizable Potted Design
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Industrial Connectors

Heavy-duty solutions for demanding environments

High Current Vibration Proof Metal Housing

Vertical Integration Capabilities

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UL Certified Laboratory

On-site testing facility with international certification capabilities

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Precision Mold Workshop

1,200+ mold designs developed annually with micron-level precision

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Polymer Materials R&D

Self-developed modified polymer materials for custom applications

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Industry 4.0 Production

Flexible manufacturing with 100,000 daily customized connector capacity

Core Technical Advantages

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Mechanical Locking Excellence

As the Book of Craftsmanship states: "Among all tools, vehicles demand the most intricate craftsmanship"
  • Self-Locking Quick Connection: 0.3 second engagement, retention force ≥85N (USCAR-2 standard)
  • Dual Ratchet Anti-Retreat Design: Displacement ≤0.15mm in vibration environments (GB/T 2423.10)
  • Tactile Feedback System: Operating torque 3.5±0.2N·m, misoperation rate reduced by 92%
  • Modular Expansion Interface: Supports 16 functional extensions, compatible with BYD e-platform 3.0
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Precision Mold Technology

From "Tiangong Kaiwu": "After solidification, strength and weakness become evident"
  • Micron-Level Processing: Cavity accuracy ±2μm, surface roughness Ra0.1μm
  • Hot Runner System: Thermal balance deviation ≤1℃, gate residue ≤0.02mm
  • In-Mold Sensing: Real-time monitoring of 32 pressure points, automatic compensation of 0.5% shrinkage
  • Mold Lifespan: Automotive connector molds maintain 98% precision after 800,000 stampings
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Quality Certification Pyramid

From "Book of Rites": "Extend to the greatest scope while exhausting the finest detail"
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IATF16949

Comprehensive automotive connector process control

UL4128

New energy connector safety certification

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CE-TUV

Electromagnetic compatibility Class B level

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Special Surface Treatment

From "Xiu Shi Lu": "Ingenious methods imitate nature, but substance reflects humanity"
  • Nano-Coating: Contact resistance ≤0.5mΩ, salt spray test 2000h
  • Laser Micro-Engraving: 0.05mm marking depth, solvent wipe resistance >500 times
  • Selective Hardening: Local hardness HRC58, substrate maintains HRC22 toughness
  • Eco-Friendly Process: ROHS2.0 compatible, VOCs emissions <10mg/m³