Turnkey PCB Assembly Solution from Design to Final Functional Testing

SZH operate a fully self-owned production base equipped with multiple high-precision SMT lines, complemented by DIP, testing, and assembly lines. This enables flexible production from prototyping to large-scale PCB assembly.
High-Precision SMT Lines: Support 01005 components, 0.3mm pitch BGA, QFN, and other fine-pitch package assembly.
Full-Process Coverage: Including double-sided SMT, mixed assembly, selective soldering, and press-fit technology.
Rigorous Quality Control: Full-process inspection with SPI, AOI, X-Ray, functional testing, and aging test systems.

  • SZH
  • China
  • Information

Complete End-to-End PCBA Service

Our Turnkey PCB Assembly Solution provides a seamless, integrated service that takes your electronic product from initial concept to market-ready finished goods. We manage the entire process—from design and sourcing to manufacturing, testing, and final assembly—ensuring a single point of accountability, reduced time-to-market, and superior quality for your electronic projects.


Our Integrated Service Workflow

1. Design Support & Optimization

  • PCB Layout & Design: Our engineering team utilizes advanced EDA tools to optimize circuit layout, signal integrity, power distribution, and thermal management.

  • Design Verification: Conduct simulation and analysis to identify potential issues early, minimizing design iterations.

  • Design for Manufacturability (DFM) Review: We analyze your design to ensure it can be produced efficiently, reliably, and cost-effectively.

  • Design for Testability (DFT) Planning: Integrate test points and diagnostic access to facilitate comprehensive post-assembly testing.

2. Component Sourcing & Supply Chain Management

  • Global Procurement Network: Access to a vast network of certified suppliers for genuine, quality components.

  • BOM Optimization & Alternate Sourcing: We provide value-engineering suggestions and manage component alternates to balance cost, performance, and availability.

  • Inventory & Logistics Management: Just-in-Time (JIT) material handling to reduce your capital burden and storage needs.

  • Supply Chain Risk Mitigation: Proactive multi-source sourcing strategies to navigate market shortages and price volatility.

3. High-Quality PCB Fabrication

  • Multi-layer Expertise: Capabilities from simple single-sided to complex 20+ layer boards.

  • Advanced Technologies: HDI, rigid-flex, blind/buried vias, and other specialized constructions.

  • Stringent Quality Checks: 100% electrical testing, Automated Optical Inspection (AOI), and impedance control.

  • Material Variety: FR-4, high-frequency laminates, metal-core, and more to meet application-specific requirements.

4. Precision SMT & Through-Hole Assembly

  • High-Speed SMT Lines: State-of-the-art placement equipment capable of handling components down to 01005 and micro-BGA.

  • Comprehensive Soldering: Reflow, selective soldering, and wave soldering to meet diverse assembly needs.

  • IPC-Certified Workforce: Skilled technicians adhering to the highest industry workmanship standards.

  • In-Process Quality Control: Real-time monitoring with SPI (Solder Paste Inspection) and AOI to prevent defects.

5. Comprehensive Testing & Validation

  • In-Circuit Test (ICT): Verifies component presence, orientation, and basic functionality.

  • Flying Probe Test: Flexible electrical test solution ideal for prototypes and low-volume runs.

  • Functional Test (FCT): Simulates the real-world operating environment to validate full product performance.

  • Boundary Scan Test: For advanced debugging and testing of complex digital circuits.

  • Burn-in & Environmental Stress Screening (ESS): Ensures product reliability and screens out early-life failures.

  • Automated Test Equipment (ATE): Custom-designed test fixtures for efficient, repeatable production testing.

6. Final Assembly & Packaging

  • System Integration: Installation of PCBA into enclosures, with final mechanical assembly.

  • Connector & Cable Harness Assembly: Attachment of all peripheral connections and wiring.

  • Product Labeling & Serialization: Application of branding, compliance labels, and unique serial numbers.

  • Custom Packaging: Tailored packaging solutions for safe shipping and retail presentation.


Our Technical Capabilities & Quality Commitment

Advanced Manufacturing Equipment

  • High-Precision SMT Placement Machines

  • 3D Solder Paste Inspection (SPI) Systems

  • Automated Optical Inspection (AOI) & X-Ray Inspection for BGA/QFN

  • In-Circuit Test (ICT) & Functional Test Rigs

  • Environmental Test Chambers

Flexible Production Models

  • Prototyping: Rapid turnaround for design verification (5-10 business days).

  • Low-Volume/Pilot Runs: Agile production lines for quantities from 50-500 units.

  • High-Volume Manufacturing: Automated lines supporting millions of placement points monthly.

  • Scalability: Seamless transition from prototype to mass production.


Industries We Serve

Our solutions power innovation across diverse sectors:

  • Consumer Electronics: Smart Home Devices, Wearables, Audio Equipment

  • Industrial Automation: PLCs, Motor Drives, HMI Panels, Sensor Modules

  • Medical Devices: Diagnostic Equipment, Patient Monitoring, Wearable Health Tech

  • Automotive Electronics: Infotainment, Control Units, Telematics

  • Telecommunications: Networking Hardware, Base Station Modules, Routers

  • Internet of Things (IoT): Gateways, Edge Devices, Sensor Nodes


Why Choose Our Turnkey PCBA Solution?

  1. Accelerated Time-to-Market: Single-source responsibility eliminates vendor coordination delays, shortening cycle times by 30-50%.

  2. Reduced Total Cost: Optimized design, consolidated supply chain, and efficient production lower overall project cost.

  3. Mitigated Risk: Expert management of technical, component availability, and production risks.

  4. Uncompromised Quality: End-to-end control ensures consistent, reliable output that meets your specifications.

  5. Expert Partnership: Dedicated engineering support guides you from concept to production.

  6. Seamless Scalability: Effortlessly scale from prototype to high-volume runs without requalifying new vendors.


Start Your Project With Us

Simply share your design files (Gerber, BOM, Schematics) and requirements. We will provide:

  1. A Detailed Project Analysis and quote within 24-48 hours.

  2. A Free DFM/DFT Report with actionable design improvement suggestions.

  3. Rapid Prototype Builds to validate your design.

  4. A Smooth Pilot Run for process verification.

  5. On-Schedule, High-Quality Volume Production.

Contact our engineering team today for a customized proposal. Let us help you transform your idea into a reliable, market-ready product efficiently and effectively.

Your Vision. Our Process. A Perfectly Executed Product.


Get the latest price? We'll respond as soon as possible(within 12 hours)
This field is required
This field is required
Required and valid email address
This field is required
This field is required
For a better browsing experience, we recommend that you use Chrome, Firefox, Safari and Edge browsers.