Explore our high-precision printed circuit board assemblies engineered for mission-critical applications across global industries.
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.
Years of EMS Experience
High-Speed SMT Lines
Modern Production Facility
Exporting Countries & Regions
Our SMT assembly lines are equipped with state-of-the-art pick-and-place machinery capable of handling high-density, multi-layer assemblies with extreme precision. 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 3D X-Ray inspection, to guarantee flawless assembly and detect hidden solder joint anomalies before shipment.
STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
By combining SMT and THT capabilities on a single production floor, we offer comprehensive mixed-technology PCB assembly services, optimizing production flow and reducing turnaround times for complex industrial and automotive electronics.
From initial design validation to final box build, STHL provides end-to-end electronics manufacturing services designed to scale your business.
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 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 our strategic location in Shenzhen, China, accelerates your time-to-market and reduces total cost of ownership.
Located in the heart of Shenzhen, the world's electronics manufacturing capital, STHL enjoys direct access to thousands of verified component distributors and manufacturers. This proximity allows us to source rare components, secure competitive pricing, and reduce lead times from weeks to days.
Our 7 SMT assembly lines are designed for rapid changeovers, allowing us to handle high-mix, low-volume prototypes alongside high-volume mass production. China's mature manufacturing infrastructure enables us to offer highly competitive labor and tooling costs without compromising on global quality standards.
Navigating international standards, intellectual property protection, and localized logistics for seamless global delivery.
We understand that your design is your most valuable asset. STHL implements rigorous IP protection protocols, including secure offline servers, restricted access to CAD/GERBER files, and legally binding NDAs for all staff and external partners.
Our manufacturing processes adhere strictly to international standards. We are fully certified under IATF 16949 (Automotive), ISO 13485 (Medical Devices), ISO 9001, and ISO 14001. All products comply with RoHS and REACH regulations.
We offer flexible shipping terms (FOB, CIF, DDU, DDP) and partner with leading global couriers (DHL, FedEx, UPS) and freight forwarders to ensure your PCBA products arrive safely, cleared through customs, and on schedule.
Adapting to the future of smart manufacturing and delivering tailored PCBA solutions for diverse industrial sectors.
The SMT industry is moving towards complete automation and real-time tracking. At STHL, we integrate Manufacturing Execution Systems (MES) to monitor component placement accuracy, reflow oven temperature profiles, and testing yields in real-time, ensuring 100% traceability for automotive and medical clients.
With global sustainability mandates, lead-free soldering and eco-friendly PCB materials are no longer optional. STHL is committed to green manufacturing, utilizing halogen-free laminates, lead-free solder pastes, and energy-efficient reflow ovens to minimize our carbon footprint.
High-reliability PCBAs for Electronic Parking Brakes (EPB), Battery Management Systems (BMS) in EVs, and ADAS sensor modules requiring strict IATF 16949 compliance.
Precision assemblies for blood pressure monitors, diagnostic equipment, and patient tracking systems requiring ISO 13485 medical-grade quality control.
Explosion-proof equipment PCBAs, wind power controllers, and smart thermostats designed to withstand harsh operating environments.
Get answers to the most common questions regarding SMT assembly, component sourcing, and working with STHL.
Discover our specialized PCB assemblies designed for smart home, medical, consumer electronics, and automotive applications.
STHL PCBA
