Language

Enterprise Scale & Capabilities

Manufacturing Footprint

Dongguan Headquarters
128,500m²
Dongguan Headquarters
(Completion in 2026)
Shenzhen Headquarters
20,000m²
Shenzhen Headquarters
3,000m² R&D Center
280M Annual Production
IP68+ Waterproof Rating

Vertical Manufacturing Ecosystem

Advanced Manufacturing Centers

Headquartered in Pinghu, Longgang District, Shenzhen, with 150,000m² of intelligent manufacturing facilities including a 15,000m² R&D center and a newly constructed 128,000m² smart manufacturing center in Tangxia, Dongguan.

Dongguan Headquarters
Dongguan Smart Manufacturing Center
Company Entrance
Shenzhen Headquarters Entrance

Four Strategic Business Units

Cable Manufacturing Center
Specialized in high-performance cables with extreme temperature and corrosion resistance
Global Waterproof Connector R&D Center
Advanced IP68+ sealing technologies with UL2238 and CE+TÜV certified standards
Precision Mold Engineering Center
Developing 1,200+ sets of molds annually with micron-level precision
Polymer Materials Innovation Center
In-house development of modified high-polymer materials for extreme environments

Vertical Integration Manufacturing System

Injection Molding Line
30+ Injection Molding Machines
Assembly Line
Assembly & Testing Workshop
Potting Line
Assembly & Potting Production Lines
Soldering Line
Precision Soldering Production Line
Warehouse
Smart Logistics Warehouse

LLT's Industry 4.0 flexible production lines deliver customized manufacturing capacity of 100,000 connectors daily, with vertical integration from materials R&D to precision assembly.

Complete Product Matrix

⚙️
Patent-Powered Technology Matrix

Enabled by 200+ national patents, our IP65~IP68+ sealed cable connection technology matrix supports extreme environments from -40°C to 135°C, withstanding 20G mechanical impact and deep-sea anti-corrosion protection.

4 Product Series
8000+ Customized Models
-40°C~135°C Temperature Range
🔌
Circular Cable Connectors
⚡
New Energy (PV/Storage)
🔀
Junction/Distribution Boxes
🏭
Industrial Connectors

Talent Ecosystem

500+ Technical Team
26 Years of Experience
8,000+ Customized Product Series
R&D Professionals
10%
Process Engineers
15%
Quality Control
10%

Smart Manufacturing

86%
Automation Rate

⚙️ Vertical Integration

In-house Mold Workshop
Injection Molding Center
Pin Insertion Systems
Potting Machines
UL-certified Lab
30+ Assembly Lines

Innovation Portfolio

200+
Patents
12
National Standards
85%
Core Technology
Self-developed

Global Certifications

🌎 15+ Countries
🏆 30+ Certifications

🇨🇳 Chinese

CQC Quality Certificate Chinese National High-tech Enterprise CCC Safety Certificate

🌐 International

🇺🇸 UL4128/UL2238 🇪🇺 CE LVD+EMC 🇩🇪 TÜV VDE0620-1 🇯🇵 PSE Certificate 🇦🇺 SAA AS/NZS

🏭 Industry

IATF16949 Automotive IP68 Waterproof Standard Industry 4.0 Certification CE+TÜV Dual Certification

Leading the future of industrial connectivity with reliability, innovation, and global standards

Core Technical Advantages

🔒

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
Invention Patent ZL2022201670458
Utility Model Patent ZL202110216998.9X
⚙️

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
China Mold Industry Association Excellence Award
BYD A-Level Supplier for 5 Consecutive Years
🏅

Quality Certification Pyramid

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

IATF16949

Comprehensive automotive connector process control

⚡

UL4128

New energy connector safety certification

🛡️

CE-TUV

Electromagnetic compatibility Class B level

National High-Tech Enterprise
Specialized & Innovative Enterprise
🛠️

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
TÜV Rheinland Environmental Certification
Huawei Green Supplier Silver Award