Explore our highly-engineered circuit card assemblies optimized for power distribution, signal integrity, and harsh environments.
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.
Modern electronics demand ultra-compact layouts and structural resilience. SMT (Surface Mount Technology) assembly represents the core of our operations. We utilize advanced component placement machines, computerized solder paste printing (SPI), multi-zone reflow ovens, and precise stencil calibration tools.
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 Automated Optical Inspection (AOI) and high-resolution X-Ray inspection, to guarantee flawless solder joints and eliminate internal voiding.
While SMT serves high-density layouts, THT (Through-Hole Technology) remains vital for high-voltage, high-stress, and power-conversion modules. STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
By implementing selective soldering systems, we execute hybrid PCBA assembly processes with pinpoint control over contact times and thermal profiling, preventing PCB delamination or component stress.
Understanding shifting requirements in hardware manufacturing, component traceability, and geographical supply chain risk mitigation.
Hardware design companies, industrial OEMs, and consumer device brands globally are shifting their sourcing models toward full-turnkey manufacturing solutions. Key drivers include the complexity of multi-layered PCB designs, the volatility of semiconductor supply chains, and the imperative for absolute component quality to mitigate field failures. High-quality SMT PCB manufacturers are no longer viewed merely as assembly shops, but as strategic engineering partners.
Industrial buyers focus heavily on E-E-A-T principles when choosing an EMS partner. Professional engineering verification (DFM/DFT), supply-chain compliance (RoHS, REACH, Conflict Minerals), and quality certifications (IATF16949, ISO13485) are critical criteria. The ability to guarantee component authenticity through direct franchise distributor partnerships minimizes the risk of counterfeit components, which can otherwise lead to disastrous product recalls.
Furthermore, regional supply chains demand flexible logistical integrations. Working with an agile China-based EMS supplier like STHL allows companies to transition prototypes to high-volume production rapidly. This is made possible through localized component sourcing hubs and efficient customs processing networks.
From initial design evaluation to final product packaging, we offer full lifecycle manufacturing services.
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 offers 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 assemblies for industrial applications.
Making your projects at STHL from SMT assembly to box build assembly is cost-effective and fast to market. Covering everything from putting a PCBA into the enclosure with all functions testing to packaging, we 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.
Designing and manufacturing circuitry that operates flawlessly under extreme thermal, mechanical, and electrical conditions.
Different industries present unique engineering demands. Over twenty years, STHL has established robust testing workflows tailored to high-reliability applications, including medical, automotive, green energy, and industrial control.
Embracing Industry 4.0, smart manufacturing, and micro-component deployment to meet future hardware requirements.
Get answers to critical technical questions regarding SMT capability limits, quality compliance, and test options.
Explore more high-reliability control, sensing, and system-integrated assemblies designed to meet global standards.
STHL PCBA