Explore our diverse manufacturing capabilities across medical, aerospace, industrial, and consumer electronics applications.
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 come from the USA, Germany, Italy, UK, Poland, New Zealand, Argentina, Brazil, Turkey, Korea, Thailand, and other 90 regions of the world.
As an IATF16949, ISO9001, ISO14001, and ISO13485 certificated electronics assembly manufacturer, we produce products exactly complying with RoHS standards and quality guarantees. 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), and highly effective SMT and THT assembly, we are recognized as a long-term reliable PCBA vendor by more and more customers worldwide.
Welcome to visit the STHL factory at any time.
Our state-of-the-art machinery and certified operators deliver high-yield assembly for complex, high-density electronic designs.
We can handle a wide range of advanced components, including:
We have the expertise to handle these complex components with precision, ensuring reliable connections.
Our advanced equipment tackles various surface-mount package types efficiently.
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.
STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
We leverage both manual dexterity and automation for high-quality component placement.
Our custom fixtures ensure consistent and efficient assembly of through-hole components.
We prioritize electrostatic discharge protection and adhere to RoHS compliance, guaranteeing the safety and environmental responsibility of our processes.
Just like SMT assemblies, THT boards undergo rigorous inspection and functional testing before shipment.
From design verification to final box-build packaging, we manage your entire hardware lifecycle.
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.
Understanding the cost drivers and structural variables that shape modern electronics manufacturing quotes.
Getting a high-quality PCB assembly quote requires analyzing multiple cost centers. A standard quote is broken down into:
The global electronics contract manufacturing market is shifting toward high-mix, low-to-medium volume flexibility. OEMs require partners who can rapidly transition from prototyping to mass production without sacrificing quality.
With rising regulatory demands (such as RoHS, REACH, and conflict mineral declarations), manufacturers must maintain complete component traceability. STHL addresses this through an integrated ERP system that tracks components from incoming inspection to the final shipping box.
Shenzhen remains the global epicenter for electronics hardware development due to its unmatched ecosystem density. Sourcing your PCBA from STHL in Shenzhen provides distinct structural advantages:
Proximity to the world's largest component distribution hubs allows us to source hard-to-find parts and alternatives within hours, drastically reducing lead times.
By investing in high-speed Yamaha and Panasonic SMT placement machines, we achieve high throughput with minimal labor overhead, passing the cost savings to our clients.
Our logistics team handles international shipping, customs declarations, and compliance paperwork, ensuring smooth delivery to Europe, North America, and Asia-Pacific.
We combine the cost-efficiency of Chinese manufacturing with the strict quality standards of Western markets. Our engineering team conducts a complimentary DFM (Design for Manufacturability) review for every quote request to identify potential yield issues before production starts.
How STHL is adapting to the next generation of electronics manufacturing challenges.
We are integrating artificial intelligence into our inspection systems. AI-driven 3D AOI (Automated Optical Inspection) reduces false calls and identifies microscopic solder joint defects that traditional algorithms miss. By linking our SMT lines to a centralized MES (Manufacturing Execution System), we achieve real-time process monitoring and predictive maintenance on our pick-and-place heads.
As devices shrink, the demand for HDI boards with microvias and fine-pitch components grows. STHL is continuously upgrading its reflow ovens and stencil technologies to support 01005 components and 0.3mm pitch BGAs. Concurrently, we are committed to carbon footprint reduction by utilizing energy-efficient reflow profiles, halogen-free materials, and closed-loop water recycling systems for PCB washing.
Ensuring your hardware complies with international regulations while providing seamless communication.
Our production facility is certified under ISO 13485 (Medical Devices Quality Management) and IATF 16949 (Automotive Quality Management). This guarantees that every board we assemble for critical applications undergoes strict risk assessment and validation.
We strictly adhere to RoHS and REACH directives. We offer lead-free assembly processes using SAC305 or other specified solder alloys, ensuring your products can be legally sold in the European Union and other regulated markets.
Communication barriers can delay projects. STHL provides dedicated English-speaking project managers and CAM engineers who work across multiple time zones to resolve technical queries, BOM discrepancies, and layout issues immediately.
Get answers to common questions about our PCB assembly quoting process, capabilities, and logistics.
Explore our advanced manufacturing capabilities for demanding industrial, aerospace, and consumer electronics.
STHL PCBA
