Explore our world-class printed circuit board assembly services tailored for high-performance industrial, commercial, and consumer electronics ecosystems.
High-fidelity audio processing circuit fabrication ensuring minimum distortion and optimal acoustic performance.
Ultra-compact high-density interconnect (HDI) solutions built for modern portable computing hardware.
Smart IoT system integration boards delivering stable connectivity and automated environmental management.
Mission-critical security and screening circuit assemblies engineered for strict industrial compliance.
High-sensitivity electromagnetic sensor circuit boards designed for accurate industrial and safety detection.
Heavy-duty industrial machinery control boards built to withstand harsh vibration and electrical noise.
Precision thermal management and driver circuit assemblies for architectural and commercial lighting.
High-speed data routing and telecommunication switch boards optimized for low latency and high bandwidth.
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.
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:
From raw component procurement to final box-build integration, STHL offers a seamless manufacturing ecosystem.
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, using premium materials and controlled processes.
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 and long lead times.
With precision manufacturing of cable assembly components including handles, retention systems, connectors, and shielding in a wide range of materials and finishes, ensuring robust interconnections.
Making your projects at STHL from SMT assembly to box build assembly is very cost-effective and fast to market, covering complete product assembly packaged and ready for delivery.
STHL conducts functional testing (FCT) to verify product performance, preventing defects such as circuit issues, missing or incorrect components. This ensures delivered products are fully qualified.
Discover specialized smart technology platforms and green energy electronics manufactured with uncompromising Chinese engineering efficiency.
High-efficiency thermal substrate electronic assemblies designed for agricultural horticulture and greenhouse lighting.
Robust power conversion and management circuit boards engineered for sustainable solar and wind generation.
Automotive-grade electronic control units conforming to IATF16949 standards for next-gen electric vehicles.
Low-power secure biometric and wireless access control circuit systems for modern smart home security.
Clear audio and digital video communication boards built for residential and commercial intercom systems.
Precision environmental sensing sensor electronics designed for air quality tracking and industrial safety.
Miniaturized RF and Bluetooth wireless audio circuit boards engineered for wearable consumer electronics.
Intelligent solar farm data acquisition and monitoring control circuit boards for maximum energy harvesting.
As global supply chains navigate macroeconomic shifts and technological transformations, China's electronics manufacturing ecosystem remains the cornerstone of hardware innovation. Shenzhen STHL has consistently invested in cutting-edge automation, digital twin manufacturing environments, and robust component traceability systems to protect global partners from supply chain volatility.
Serving international clients across the USA, Germany, Italy, UK, Poland, and over 90 other regions requires more than standard production capacity. STHL provides localized technical liaison, transparent project management, and rapid prototyping turnaround. Our engineering teams work in tandem with overseas R&D centers to ensure Design for Manufacturability (DFM) and Design for Testing (DFT) are optimized from inception, cutting time-to-market by up to 35%.
The convergence of Artificial Intelligence, IoT edge computing, and green energy technology demands unprecedented precision in PCB assembly. STHL is pioneering the deployment of AI-driven AOI/SPI inspection systems, 3D X-ray tomography for hidden solder joint analysis, and smart component warehouses utilizing automated guided vehicles (AGVs). These innovations guarantee absolute reliability in high-stakes sectors like automotive (IATF16949) and medical devices (ISO13485).
A: STHL is certified under IATF16949 (automotive), ISO9001 (quality management), ISO14001 (environmental management), and ISO13485 (medical devices), ensuring full adherence to international quality standards.
A: Thanks to our agile SMT lines and comprehensive internal component sourcing network, prototype assembly can be completed in as fast as 3 to 5 business days.
A: We procure components strictly from authorized global distributors and tier-one manufacturers, backed by rigorous incoming material inspection (IQC) and laboratory testing protocols.
A: Yes! We provide complete turnkey solutions encompassing PCB fabrication, SMT/THT assembly, cable integration, custom enclosures, and full functional testing (FCT) ready for direct end-user distribution.
STHL PCBA