Engineering Capabilities Manufacturing Capabilities Test Laboratory
Engineering Capabilities
From Design to Reality --- Every Connection Matters

Leading the Way in Connectivity Technology and Innovation

Engineering the Future of Interconnect Technology

Leoco provides end-to-end engineering for connectors and cable harness systems, from concept and design through validation and mass production, ensuring performance, manufacturability, and long-term reliability.


Industry Applications:

Automotive Electronics

Automotive Electronics

Smart Instrumentation

Smart Instrumentation

Industrial Automation

Industrial Automation

Communication Equipment

Communication Equipment

Energy Sector

Energy Sector

Leading the Way in Connectivity Technology and Innovation
Innovation Design Platform
Precision Tooling — The Foundation of Quality
Engineering Driven - Smart Manufacturing

Digital Innovation Design Platform

Innovation Design Platform

Leoco's innovation design platform integrates design and engineering expertise to support end-to-end product development.

Leoco's innovation design platform integrates design and engineering expertise to support end-to-end product development.

Advanced digital tools enable multi-level modeling, customization, and early-stage simulation to predict product performance.

Advanced digital tools enable multi-level modeling, customization, and early-stage simulation to predict product performance.

Rapid prototyping and validation are supported by in-house 3D printing to accelerate development cycles.

Rapid prototyping and validation are supported by in-house 3D printing to accelerate development cycles.

Precision Tooling — The Foundation of Quality

Precision tooling is a core element of Leoco's  quality foundation.

Precision tooling is a core element of Leoco's quality foundation.

High-precision plastic injection molds and metal stamping tooling are produced using advanced manufacturing equipment for tight-tolerance production.

High-precision plastic injection molds and metal stamping tooling are produced using advanced manufacturing equipment for tight-tolerance production.

Multi-cavity and micro-mold technologies are validated through rigorous reliability testing to ensure consistent, long-term performance.

Multi-cavity and micro-mold technologies are validated through rigorous reliability testing to ensure consistent, long-term performance.

Engineering Driven - Smart Manufacturing

Leoco's smart manufacturing approach is driven by engineering-led process development.

Leoco's smart manufacturing approach is driven by engineering-led process development.

Expertise in multi-material injection molding and metal insert molding enables functional integration and process stability.

Expertise in multi-material injection molding and metal insert molding enables functional integration and process stability.

Integrated real-time defect detection supports stable quality and continuous process improvement.

Integrated real-time defect detection supports stable quality and continuous process improvement.

Manufacturing Capabilities
Global Reach, Local Precision From Components to Complete Solutions — Integrated Manufacturing Excellence Smart Manufacturing — Automation with Intelligence

Global Reach, Local Precision

Leoco's manufacturing network spans Suzhou (China) and Bekasi (Indonesia), forming a globally connected production ecosystem built on automation, flexibility, and operational efficiency.

With 45,500 square meters of manufacturing facilities in China and Indonesia, we deliver world-class interconnect solutions to customers across the globe.


From Components to Complete Solutions — Integrated Manufacturing Excellence

Leoco combines precision engineering with scalable manufacturing to meet diverse market needs.

Our in-house capabilities include high-precision stamping equipment up to 60 tons, delivering manufacturing accuracy of 0.002 mm with product tolerances of ±0.01 mm, advanced injection molding up to 200 tons, and a dedicated Class 100,000 (ISO 8) cleanroom for medical-grade production.


Smart Manufacturing — Automation with Intelligence

Leoco embraces the Industry 4.0 revolution through AI-driven automation, digital twin technologies, and machine-to-cloud data integration. Our smart factories deploy collaborative robots (cobots), automated guided vehicles (AGVs), and AI-based visual inspection systems to enhance manufacturing precision, operational transparency, and long-term sustainability.


Test Laboratory

Leoco's in-house Test Laboratory is an integral part of our commitment to quality and reliability. Certified under ISO/IEC 17025 and accredited by CNAS (China National Accreditation Service for Conformity Assessment), the facility operates to the highest international testing standards.

Spanning 1,000 square meters, the facility is equipped with advanced instrumentation for electrical, mechanical, chemical, and reliability testing, supporting comprehensive material and product inspections, environmental and durability evaluations, and RoHS / REACH compliance analysis.

By integrating rigorous testing into every stage of development, Leoco ensures that every product meets global performance, safety, and environmental standards.


Certified under ISO/IEC 17025

Certified under ISO/IEC 17025

Accredited by CNAS (China National Accreditation Service for Conformity Assessment)

Accredited by CNAS (China National Accreditation Service for Conformity Assessment)

Spanning 1,000 square meters

Spanning 1,000 square meters

Incoming Material Inspection RoHS Testing Reliability Test IPQC Inspection OQC Inspection Environmental Control
Incoming Material Inspection

Inspecting Every Detail — Starting from the Molecule

Leoco's Incoming Quality Control (IQC) system is equipped with advanced inspection and analytical instruments to verify material integrity at the earliest stage of production.

• Film Thickness Tester / X-Ray Fluorescence (XRF) Analyzer for plating verification and RoHS compliance.

• Fourier Transform Infrared (FTIR) Spectrometer for accurate material identification.

• Penetrating X-Ray Inspection and Color Difference Analyzer for internal structure validation, visual defect detection, and appearance control.

• High-Frequency Network Analyzer for signal integrity and electrical performance verification.


RoHS Testing

For a Greener Planet — Every Connection Counts

Since 2010, Leoco has continuously invested in its in-house chemical laboratory to support environmental compliance and sustainable manufacturing. Every production batch undergoes hazardous substance testing to ensure regulatory conformity and reduce environmental impact.

• In-house lab with certified XRF and FTIR ensures RoHS and REACH   compliance.

• End-to-end traceability from raw materials to finished goods.

• Sustainable manufacturing aligned with Leoco's ESG strategy.

Reliability Test

Reliability Proven — Certified for Confidence

Leoco's CNAS / ISO 17025-compliant Reliability Laboratory conducts rigorous mechanical, environmental, and electrical testing to validate long-term performance across all interconnect solutions.

• Continuous evaluation under vibration, thermal shock, humidity, and salt spray conditions.

• Testing beyond standard requirements to simulate real-world operating conditions and product aging.

•Long-term performance verification exceeding international reliability standards.

IPQC Inspection

Zero Defect Isn't a Target — It's Our Path

Quality is engineered into every process—not inspected at the end. Leoco's production lines deploy real-time monitoring and AI-assisted measurement systems to maintain stable yields, consistent quality, and full process traceability.

• Real-time AI vision monitors assembly accuracy and consistency.

• Digital MES/ERP integration enables complete process traceability.

Defect rates below 50 PPM,progressing toward Zero Defect Manufacturing.

OQC Inspection

From Our Lab to Your Line — Perfection Verified

Every product completes a final inspection sequence fully integrated with our quality systems, ensuring complete traceability and documentation. Only products that meet our most stringent requirements are released with the Leoco Seal of Quality.

• Certificates of Conformance are digitally generated and verified.

• OQC records are digitally linked to customer orders for full traceability.

• Final reliability checks are completed before logistics release.


Environmental Control

In accordance with the Dodd-Frank Protection Act, Leoco prohibits the use of metals from conflict regions or illegal mining — commonly known as "conflict minerals." We disclose the sources and use of tin, tantalum (coltan), gold, and tungsten in all products.

We value every enquiry. Tell us how we can assist you.

Contact us