Explore our diverse array of application-specific PCB Assemblies designed to meet high reliability, strict certifications, and complex design limits.
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 manufacturing lines employ high-accuracy automated equipment to navigate tight pitches, complex package geometries, and lead-free compliance requirements.
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 and X-Ray inspection, to guarantee flawless assembly.
STHL PCBA also excels in Through-Hole Technology (THT) assembly. Our services encompass:
Providing integrated hardware manufacturing from prototype to full turnkey box-build production.
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.
Our forward-looking development path ensures we remain at the cutting edge of manufacturing technology, enabling next-generation hardware designs.
As microchip geometries shrink, the demand for High-Density Interconnect (HDI) boards rises. STHL's engineering roadmap incorporates laser micro-via drilling, Any-Layer HDI development, and fine pitch line width tracking down to 30um spacing to handle ultra-dense layouts.
We are actively implementing advanced substrate testing (e.g., Rogers, Teflon, high-Tg FR-4) to meet demands for high-frequency millimeter-wave radars and advanced telecommunications, controlling dielectric constants and signal loss characteristics.
Aligning with global zero-carbon initiatives, STHL is expanding green PCB fabrication processes, optimizing water-recycling capabilities, using halogen-free laminates, and investing in energy-efficient SMT ovens to reduce our carbon footprint.
From medical grade systems to harsh-environment industrial computing, we deliver domain-specific PCB configurations.
| Industry Sector | Specific Applications Served | Critical Quality Parameters | Standards Applied |
|---|---|---|---|
| Automotive | Millimeter-wave radar, ADAS systems, battery management systems (BMS), engine controllers. | High thermal cycling endurance, low DPPM failure rates, vibration resistance. | IATF 16949, IPC-A-610 Class 3 |
| Medical Technology | Anesthesia equipment, telemedicine panels, ward monitors, infusion pumps. | Biocompatible materials, zero-tolerance electrical leakage, exact traceability. | ISO 13485, FDA Co-compliance |
| Industrial & Energy | Power grids, solar inverter PCBA, particle monitors, sensor interfaces. | High voltage isolating design, heavy copper thickness, conformal coating protection. | ISO 9001, UL 94V-0 |
| Telecommunications | Wireless signal boosters, network switches, VoIP systems. | Impedance control ±5%, low signal-to-noise ratio distortion, multi-layered alignment. | IPC-6012 Class 3 |
STHL leverages the highly integrated electronics ecosystem of Shenzhen. Our factory incorporates Industry 4.0 automated features, enabling digital management of materials from intake to final assembly.
Real-time component sourcing analytics: By integrating digital connections directly to global and local element distributors, STHL guarantees components are sourced efficiently. This shields clients from market spikes and long lead times.
Advanced Production Automation: Our 7 SMT lines employ high-speed pick-and-place equipment, automated optical inspection, and digital solder paste printing. This reduces human error, decreases waste, and ensures consistency across production runs.
Direct access to major PCB laminate suppliers and component vendors within a 50-mile radius, minimizing inland transit times.
Unique barcode scanning at each station maps components directly to individual finished assemblies for accountability.
Easily scale from prototype verification runs (NPI) to high-volume production schedules without line downtime.
Our operations support procurement departments by addressing lead time volatility, component obsolescence, and product lifecycle management.
If parts face allocation delays, our engineering department reviews your Bill of Materials (BOM) to suggest drop-in alternatives, securing form, fit, and functional compliance while avoiding production stops.
Our incoming inspection center subjects components to verification testing, including optical microscopy, X-ray scanning, and parameter matching to ensure authentic parts enter production.
By offering unified services (PCB fabrication + SMT + Box Build), we minimize shipment transit costs, eliminate split manufacturing markups, and lower the final cost per unit.
STHL bridges the gap between global expectations and offshore manufacturing. We maintain clear and responsive communication lines with procurement and engineering contacts in North America, Western Europe, and the Asia-Pacific region.
Our quality policies align with global product safety directives, ensuring hassle-free clearance through international custom gates. Every production batch is certified to conform to these quality frameworks:
STHL partners with global freight agencies (DHL, FedEx, UPS) and major sea ports in Shenzhen, providing door-to-door transport with DDP (Delivered Duty Paid) options available for streamlined import processing.
Engineers can interact directly with our DFM (Design for Manufacturability) team. Potential layout improvements are resolved early, before tooling begins.
Explore answers to crucial engineering, production, and supply chain queries to support your decision-making.
STHL maintains a rigorous compliance infrastructure. We hold IATF 16949 (automotive), ISO 13485 (medical devices), ISO 9001 (general quality systems), and ISO 14001 (environmental management). Our production assemblies strictly comply with RoHS and REACH regulations.
Yes. Our procurement team works with verified global distributors and direct component manufacturers. If a component is on allocation or obsolete, our engineering team can identify and recommend cross-referenced alternatives for client approval.
We configure comprehensive testing routines for every project, including: Automatic Optical Inspection (AOI), X-ray inspection for BGA/fine-pitch components, In-Circuit Testing (ICT), and full Functional Circuit Testing (FCT). Special environmental stress-aging checks can also be added upon request.
Yes, we have 7 automated SMT lines and 2 DIP/THT lines configured to scale. This allows us to handle both prototype runs (New Product Introduction - NPI) and high-volume production runs, maintaining consistent quality across both.
IP protection is a priority at STHL. We sign Non-Disclosure Agreements (NDAs) with clients before receiving design assets. Access to Gerber files, schematics, and firmwares is restricted to authorized engineers on a need-to-know basis, and our server networks are secured against external data leaks.
Continuing our product overview of electronics manufacturing services, including medical monitors, networking hardware, and custom user-interfaces.
Consult with our engineers to configure your custom manufacturing roadmap. Request a comprehensive, DFM-aligned quote for your PCB fabrication and SMT needs today.
STHL PCBA
