Shenzhen STHL is a high-quality provider of electronics manufacturing services (EMS) in China. We serve customers worldwide along the whole industry chain including PCB layout, components sourcing, PCB fabrication, PCBA assembly, cable assembly, box build assembly and comprehensive testing services.
Established in 2006, STHL brings 20 years of experience in electronics contract assembly manufacturing. Currently, STHL has 220+ staff members. Our 10,000 sqm facilities include 7 SMT assembly lines, 2 DIP/THT lines, 2 function testing lines and 2 finished device assembly lines.
At STHL, we provide electronics assembly services for energy power, communications, automotive, medical, consumer electronics, computers & storage, safety & security, commercial and industrial products. Our customers mainly from USA, Germany, Italy, UK, Poland, New Zealand, Argentina, Brazil, Turkey, Korea, Thailand, and the other 90 regions of the world.
Our state-of-the-art Surface Mount Technology (SMT) lines are optimized for high-density, multi-layer, and complex component placements.
We can handle a wide range of advanced components, including:
But our commitment to quality goes beyond component expertise. We utilize advanced inspection techniques, including AOI (Automated Optical Inspection) and X-Ray inspection, to guarantee flawless assembly across every production batch.
For power electronics, connectors, and high-stress components, THT remains irreplaceable. STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
From concept to mass production, we provide end-to-end EMS solutions designed to accelerate time-to-market.
STHL operates 7 automated PCB assembly lines for both prototype and mass production. Advanced SMT ensures precise component placement and quality. Skilled technicians provide efficient THT assembly and RoHS-compliant lead-free soldering.
STHL PCB fabrication service produces high-quality, reliable printed circuit boards from simple singles to complex multi-layers, from flex PCB to rigid-flex PCB, we use premium materials and controlled processes to meet precise specifications.
STHL offer global electronic component sourcing and supply chain solutions. Our vast supplier network and expertise ensure access to genuine, certified parts, mitigating risks of counterfeits, allocation, and long lead times to secure your production schedule.
With the precision manufacturing of cable assembly components including handles, retention systems, connectors, and shielding in a wide range of materials and finishes, we have performed many successful cable assembly for many customers from various industrial applications.
Making your projects at STHL from SMT assembly to box build assembly is very cost-effective and fast to market. Covering everything from putting a PCBA into the enclosure with all functions testing to a complete product assembly packaged and ready for delivery to your customers, we can supply the full support.
STHL conducts functional testing (FCT) to verify product performance, preventing defects such as circuit issues, missing or incorrect components. This ensures delivered products are stable and fully qualified before leaving our facility.
How Shenzhen's industrial cluster optimizes cost, speed, and reliability for global electronics buyers.
As the world's primary electronics hub, Shenzhen provides immediate access to raw materials, components, and specialized tooling. This proximity reduces component transit times from weeks to hours, allowing STHL to offer rapid prototyping and flexible production scaling.
By maintaining direct partnerships with authorized distributors (Arrow, Avnet, Future Electronics) and local verified component manufacturers, STHL bypasses broker markups and mitigates the risk of counterfeit components, ensuring full traceability.
With streamlined customs clearance and proximity to Hong Kong and Shenzhen international airports, we offer optimized shipping routes (air, sea, express) that guarantee prompt delivery to North America, Europe, and Asia-Pacific.
Adapting to the future of high-density interconnects, smart manufacturing, and green electronics.
Expanding our capabilities in Package-on-Package (PoP) and multi-chip modules (MCM) to meet the miniaturization demands of IoT and wearable medical devices.
Implementing real-time MES (Manufacturing Execution System) tracking, automated component storage systems, and AI-driven SPI/AOI defect prediction models.
Transitioning to 100% halogen-free materials, optimizing energy efficiency across all 7 SMT lines, and expanding our closed-loop recycling systems.
Our commitment to zero-defect manufacturing is backed by rigorous international standards.
Strict process controls for safety-critical automotive electronics.
Comprehensive quality management for medical instrumentation.
Continuous improvement and customer satisfaction frameworks.
Sustainable manufacturing practices and RoHS compliance.
Answers to common technical and logistical questions regarding our SMT PCB assembly process.
STHL PCBA
