Explore our range of specialized PCBA assemblies engineered for high-performance applications across communications, smart devices, safety systems, and industrial machinery.
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.
It was established in 2006, with 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.
As an IATF16949, ISO9001, ISO14001,and ISO13485 certificated electronics assembly manufacturer, we produce products exactly comply with RoHS standard and quality guarantee. Based on our excellent engineering and production capacities in technical areas such as materials analysis & storage, advanced equipment, reliability testing (AOI, X-RAY, ICT test and function test), high effective SMT and THT assembly, we are recognized as a long-term reliable PCBA vendor by more and more customers worldwide.
Welcome to visit STHL factory at any time. Our facilities are designed to meet stringent global standards, providing complete traceability and precision for low-to-high volume production runs.
We combine state-of-the-art machinery with certified engineering expertise to deliver robust assembly services. From micro-miniaturized surface-mount packages to mechanically intensive through-hole components.
We can handle a wide range of advanced components, including: Ball Grid Array (BGA) and Ultra-Fine BGA (uBGA): We have the expertise to handle these complex components with precision, ensuring reliable connections. QFN, QFP, SOIC, and PLCC Packages: Our advanced equipment tackles various surface-mount package types efficiently. Package-on-Package (PoP) and Small Chip Packages: "We're equipped to handle even the most intricate components with tight pitch spacing."
But our commitment to quality goes beyond component expertise. We utilize advanced inspection techniques, including AOI and X-Ray inspection, to guarantee flawless assembly. Our multi-zone reflow ovens utilize precise thermal profiling to prevent component warping and ensure optimized solder joint formation across mixed-technology boards.
STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass: Manual and Automatic Component Insertion: We leverage both manual dexterity and automation for high-quality component placement. THT Assembly Fixtures: Our custom fixtures ensure consistent and efficient assembly of through-hole components.
ESD and RoHS Compliant Soldering: We prioritize electrostatic discharge protection and adhere to RoHS compliance, guaranteeing the safety and environmental responsibility of our processes. Inspection and Functional Testing: Just like SMT assemblies, THT boards undergo rigorous inspection and functional testing before shipment to guarantee longevity under mechanical stress.
From initial PCB layout verification to box build integration, our services provide a complete turkey path to market for global electronics brands.
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.
The global printed circuit board assembly (PCBA) sector is undergoing a rapid technological evolution driven by miniaturization, the integration of artificial intelligence, and the demand for high-reliability systems. Today's PCBA manufacturing lines must handle complex boards with extreme density and components that require high placement accuracy, such as 01005 passives and ultra-fine-pitch BGAs.
Key developmental vectors include:
STHL maintains a position at the forefront of these transitions. By continuously investing in advanced machinery and updating assembly guidelines, we ensure that your next-generation devices are built on processes designed for future compatibility.
Procuring electronic components and contract manufacturing services in the modern macroeconomic environment requires balancing cost, lead times, and risk. Buyers are shifting from standard transactional relationships to long-term collaborative partnerships with EMS providers to secure components supply chains.
Key procurement challenges that STHL addresses directly include:
Industrial electronics demand diverse operational criteria. Consumer electronics prioritize cost-efficiency and physical form factor, whereas automotive and medical devices demand zero-defect tolerance. STHL provides customized production paths tailored to each industry's standard requirements:
With vehicle electrification growing rapidly, PCBA components must withstand high vibrations, thermal cycling, and humidity. STHL enforces rigorous AOI, X-Ray, and functional testing parameters to ensure high reliability for Vehicle Control Units (VCU), ADAS components, and navigation units.
Medical equipment demands strict traceability and absolute quality control. STHL's processes follow strict Class 2 and Class 3 electronic standards for life-critical and monitoring equipment like pacemakers and ECG monitors, backed by comprehensive document archiving.
For industrial smart-grid systems, crane controllers, and drilling gear, PCBs must manage high power and harsh environments. We implement heavy copper processing, advanced conformal coating, and strict ESD protection during assembly.
As a global partner, STHL ensures seamless shipping logistics and compliance. Navigating international regulations, customs requirements, and quality audits is critical to minimizing delivery delays.
Our compliance framework includes:
To support emerging technologies such as 5G communications, edge AI computing, and electric vehicle modules, STHL is expanding its technological capabilities. Our roadmap through 2030 includes:
View additional specialized medical-grade, automotive-grade, and industrial control board assemblies manufactured under strict compliance systems.
STHL PCBA
