Explore our engineering capabilities across high-performance applications designed for critical industrial sectors worldwide.
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. Our dedicated team of over 220+ staff members operates out of a state-of-the-art 10,000 sqm facility housing 7 automated SMT assembly lines, 2 DIP/THT lines, 2 function testing lines, and 2 finished device assembly lines.
We supply high-reliability electronics assembly services for energy power, communications, automotive, medical, consumer electronics, computers & storage, safety & security, commercial and industrial products. Our primary customer footprints span the USA, Germany, Italy, UK, Poland, New Zealand, Argentina, Brazil, Turkey, Korea, Thailand, and over 90 other regions of the world.
Modern Surface Mount Devices require ultra-fine pitch placement accuracy. Our advanced automated machinery and process control ensure flawless alignment on complex printed circuit boards.
For industries demanding absolute durability under extreme mechanical and thermal stress, THT remains indispensable. STHL combines automated insertion with manual excellence for high-strength board configurations.
From design analysis to turnkey system integration, we provide high-grade end-to-end manufacturing solutions.
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 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.
Providing seamless material management, localized engineering insights, and robust regulatory adherence across crucial international markets.
The electronics manufacturing market demands agility. Lead times, chip allocation, and global compliance regulations are constantly evolving. At STHL, we mitigate these variables through strong partnerships with leading chipmakers and component distributors worldwide, ensuring your project meets deadlines without compromise.
Each regional market has specific operational expectations. We provide tailored technical assistance for engineers in Germany, USA, UK, and beyond, supporting design-for-manufacturing (DFM) verification to ensure clean, high-yield PCB layouts before production begins.
Navigating standards like CE, UL, RoHS, and WEEE can be demanding. Our assembly and material selection processes align with international environmental directives, allowing your product to pass localized testing and certification hurdles effortlessly.
At Shenzhen STHL, quality is not a final checkpoint; it is a systematic discipline embedded in every step of our manufacturing workflow. Our certifications reflect our commitment to delivering consistent performance.
Counterfeit components represent a major vulnerability in supply chains. We protect your hardware designs through structured verification systems.
A look at the processes and manufacturing standards defining the next generation of electronic components.
Upgrading pick-and-place precision to reliably process 01005 and micro-BGA components for smart devices.
Deploying AI algorithms into AOI processes to detect microscopic solder voids and surface anomalies.
Using lower-energy reflow profiles, halogen-free materials, and sustainable recycling systems for factory waste.
Common questions regarding our China SMT and SMD manufacturing capabilities, processes, and service policies.
SMT (Surface Mount Technology) refers to the manufacturing process used to place components directly onto the surface of a PCB. SMD (Surface Mount Device) refers to the actual electronic components (such as resistors, capacitors, and ICs) designed for surface mount placement. STHL is fully equipped to handle both SMT processes and SMD sourcing.
We source materials through authorized global distributors and directly from original component manufacturers (OCMs). Every batch undergoes incoming inspection, including visual analysis and electrical testing, to prevent counterfeit components from entering our production lines.
Our quality control processes include 3D Solder Paste Inspection (SPI), Automated Optical Inspection (AOI), 3D X-Ray inspection for BGA packages, In-Circuit Testing (ICT), and customized Functional Testing (FCT) before packaging.
Yes, all of our production processes can be configured to comply with lead-free and RoHS standards, ensuring your products meet environmental requirements for sales in European and global markets.
Prototype assemblies typically take 1 to 3 weeks once all components are sourced. Large-scale volume production lead times generally range between 4 to 6 weeks, depending on component availability and order quantities.
Yes, we provide complete turnkey box-build solutions. This includes SMT/THT PCBA, mechanical enclosure assembly, routing, cabling, functional verification, firmware flashing, and final packaging.
Explore our industrial-grade components, communication modules, and power boards developed for demanding application scenarios.
STHL PCBA
