Reliable PCB Assembly Manufacturer

Kingda specializes in high-quality PCB assembly services with integrated manufacturing and testing capabilities under one roof.We deliver reliable, high-quality PCB assembly solutions for industries worldwide.

PCB Assembly Services

Kingda provides comprehensive PCB assembly services from prototype development to full-scale production. Supported by experienced engineering teams, advanced manufacturing facilities, and a global supply chain network, we deliver reliable, high-quality PCBA solutions for a wide range of industries.

SMT Assembly

High-speed surface mount assembly for complex PCB designs, supporting prototype, low-volume, and mass production requirements.

THT Assembly

Automated and manual through-hole assembly solutions for products requiring enhanced mechanical strength and long-term reliability.

Mixed Technology Assembly

Integrated SMT and THT manufacturing processes for complex electronic assemblies with diverse component requirements.

Component Sourcing

Global component procurement and supply chain management services to ensure quality, availability, and cost efficiency.

Testing & Inspection

Comprehensive inspection and testing services to verify assembly quality, functionality, and long-term product reliability.

Box Build Assembly

Complete system integration services including mechanical assembly, cable assembly, labeling, packaging, and final product assembly.

PCB Assembly Process

From incoming materials to final delivery, Kingda follows a standardized manufacturing process designed to ensure product quality, process consistency, and full traceability throughout every stage of production.

01. Incoming Material Inspection & Preparation

Quality starts before assembly begins. All incoming PCBs, electronic components, and production materials undergo strict inspection and verification against approved BOMs and manufacturing documentation. Our engineering team reviews assembly requirements, validates production data, and prepares manufacturing programs to ensure materials, processes, and specifications are fully aligned before production starts.

02. SMT & Through-Hole Assembly

Kingda utilizes advanced SMT and THT production lines to support prototype, low-volume, and medium-to-high volume manufacturing. Automated solder paste printing, precision component placement, reflow soldering, wave soldering, and manual assembly processes are carefully controlled to ensure consistent assembly quality. Our manufacturing capabilities support complex PCB assemblies with a wide range of component packages and technologies.

03. Inspection, Testing & Quality Assurance

Comprehensive quality control procedures are integrated throughout the manufacturing process. Inspection and testing methods include solder paste inspection, automated optical inspection, X-Ray analysis, first article inspection, in-circuit testing, functional testing, and customer-specific verification procedures. Continuous monitoring and process validation help identify and eliminate defects before products move to the next production stage.

04. Packaging, Traceability & Global Delivery

After final quality approval, completed PCB assemblies are packaged using anti-static and protective materials to ensure safe transportation and storage. Manufacturing records, inspection results, and production data are maintained through a traceability system that supports product lifecycle management and quality assurance requirements. Supported by reliable logistics partners, Kingda delivers products safely and efficiently to customers worldwide.

Technical Capabilities

Kingda combines advanced manufacturing equipment, experienced engineering expertise, and rigorous process control to support PCB assembly projects ranging from rapid prototyping to high-volume production. Our manufacturing capabilities cover advanced SMT assembly, through-hole technology, complex PCB structures, and comprehensive engineering support, enabling us to meet the demanding requirements of industrial, medical, telecommunications, AI, and power electronics applications.

01.Advanced SMT Assembly

Our high-speed SMT production lines deliver precise component placement and stable manufacturing performance for complex PCB assemblies. With advanced placement equipment and strict process control, we support miniature components, fine-pitch packages, and high-density PCB designs while maintaining excellent soldering quality and repeatability.

SMT Capabilities:

Component size down to 01005
Fine-pitch components from 0.35 mm BGA
BGA, QFN, CSP, LGA and PoP packages
Double-sided SMT assembly
Lead-free and RoHS-compliant assembly
High-speed automatic component placement
Precision solder paste printing
Nitrogen reflow soldering (if applicable)

02. Through-Hole & Mixed Technology Assembly

In addition to SMT manufacturing, Kingda provides reliable through-hole and mixed technology assembly for products requiring high mechanical strength, high-current capability, or specialized electronic components. Our production lines combine automated equipment with experienced manual assembly to ensure consistent quality across various PCB designs.

Assembly Capabilities:

Wave soldering
Manual through-hole assembly
Mixed SMT + THT assembly
Press-fit connector assembly
High-power component assembly
Large connector installation
Transformer and coil assembly
Cable and wire harness integration

03. PCB Assembly Capability

Kingda supports a wide range of PCB types and manufacturing requirements, allowing customers to prototype and manufacture increasingly complex electronic products through a single manufacturing partner.

PCB Capability:

Rigid PCB Assembly
Flexible PCB Assembly
Rigid-flex PCB Assembly
Multilayer PCB Assembly
HDI PCB Assembly
Heavy copper PCB Assembly
Metal core PCB Assembly (MCPCB)
High-TG PCB Assembly
High-frequency PCB Assembly
Controlled impedance PCB Assembly

Manufacturing Range:

04. Engineering & Manufacturing Support

Beyond PCB assembly, our engineering team works closely with customers throughout the product development cycle to improve manufacturability, reduce production risks, and shorten time-to-market. Early engineering review helps identify potential issues before production begins, minimizing cost and avoiding unnecessary design revisions.

Engineering Services:

Design for Manufacturing (DFM) review
Design for Assembly (DFA) analysis
BOM verification and optimization
Gerber file review
Pick & Place file verification
Component availability analysis
Alternative component recommendations
Prototype manufacturing support
Process optimization for mass production
Manufacturing documentation verification

PCB and PCBA Product Showcase

Kingda is a professional China PCB assembly company. As a Chinese PCB manufacturer, Kingda continually provides high-end PCB assembly products from rapid PCBA prototyping, low volume production to high volume production that makes us be your reliable partner for your electronic manufacturing and innovation.

Humanoid robot PCBA

Ultrasound Diagnostic Device PCBA

RF spectrum filtering PCBA

AI Edge Computing PCBA

Network Switch PCBA

Battery Management System(BMS) PCBA

AI Camera Mainboard PCBA

Intelligent Motion Control PCBA

Industrial Data Acquisition PCBA

Quality & Certifications

Quality is the foundation of every PCB assembly project at Kingda. Our quality management system combines standardized manufacturing procedures, advanced inspection technologies, and internationally recognized certifications to ensure every product meets the highest standards of performance, reliability, and consistency. From incoming materials to final shipment, every production stage is monitored, documented, and continuously optimized to minimize risk and deliver dependable manufacturing results.

Quality Management

Kingda implements a comprehensive quality management system throughout the entire manufacturing process. Each production stage follows standardized operating procedures and quality checkpoints to identify potential issues early, reduce manufacturing variation, and ensure consistent product quality.

Quality Control Flow

IQC → SPI → SMT / THT Assembly → AOI → X-Ray → ICT / FCT → OQC

Quality Control Highlights

Incoming material verification and BOM validation
Real-time in-process quality monitoring
Standardized process control and work instructions
Continuous quality improvement and corrective actions
Final inspection before packaging and shipment

Inspection & Testing

Comprehensive inspection and testing procedures are integrated into every production stage to verify solder quality, component placement, electrical performance, and overall product reliability. Inspection methods are selected according to product complexity and customer requirements, ensuring every PCB assembly performs as intended.

Inspection Capabilities

3D Solder Paste Inspection (SPI)
Automated Optical Inspection (AOI)
X-Ray Inspection for BGA and hidden solder joints
First Article Inspection (FAI)
In-Circuit Testing (ICT)
Functional Testing (FCT)
Customized testing solutions for specific applications

Certifications & Traceability

Kingda operates in accordance with internationally recognized quality standards while maintaining complete manufacturing traceability throughout the entire production lifecycle. Every product can be tracked from incoming materials to final shipment, providing transparency, accountability, and efficient quality management.

Quality Standards

ISO 9001 Quality Management System
ISO 13485 Medical Device Quality Management
IATF 16949 Automotive Quality Management System
IPC-A-610 Electronic Assembly Standard
RoHS & REACH Environmental Compliance

Kingda PCB Assembly

Your Best PCB Assembly Expert in China

Kingda PCB Assembly division has a workshop with 1800 square meters and 150 employees include 4 SMT lines.

You can provide all the electronic components including the bare printed circuit boards(kitted), we assemble your boards using our precise equipment;

You can also provide partial components and we purchase the reminder components and we assemble your boards(partial kitted).

Or we can also provide you turn-key assembly services by we make bare printed circuit boards and purchase all the components and do the assembly.

At Kingda we can answer any PCB assembly questions that you may have, pls feel free to contact us anytime for your custom PCB assembly projects.

PCB Assembly from Rigid, Flex to Rigid Flex board with leaded & lead-free solder
No minimum order requirement, order start from 1 pcs
7/24 Live sales & tech support
Full Range Of Reliable Suppliers For Components
8-48 hours delivery time when components are ready

Through our 2 hours rapid response services from our 24/7 sales and tech support team, and excellent after-sales service, we will be your best PCB assembly manufacturer in China.

GET IN TOUCH

Kingda: Your Best PCB Assembly Manufacturer in China

We can work with BGA of 0.35mm pitch with X-ray testing, Passive Components minimum 01005 package, Fine Pitch Components minimum 0.38mm pitch.

Our Test types include visual inspection, X-ray inspection, AOI testing, In-Circuit test and functional test (customer provide functional test instructions).

For low volume PCB assembly projects, our quick turn PCB assembly delivery time goes from 8 hours to 48 hours when components are ready.

Kingda has relationships with all top distributors such as Digi-key, Mouser and Element 14. Our engineers will give you expertise in DFM (Design for Manufacturing) checking for your every order, we verify all details of your files including BOM and Gerber files to allow you to correct your PCB design before we build it, saving significant time and cost and avoiding unnecessary repeats of the prototyping assembly process.

No matter you are an electrical engineer, a product designer, a system integrator or a maker looking for PCB fabrication and assembly, or PCB manufacturing and assembly, or electronic assembly services(electronic PCB assembly) ,or a low cost PCB assembly house, Kingda PCB assembly team will be your perfect PCB assembly house in China.

Download Your FREE
PCB & Assembly Catalog

Download the FREE PCB & Assembly Catalog online today! Kangda will be your best partner on the way of bring your idea to market.

Industry Applications

Kingda provides reliable PCB assembly solutions for a wide range of industries where product quality, manufacturing consistency, and long-term reliability are essential. From prototype development to mass production, we support customers with flexible manufacturing services tailored to industry-specific requirements.

Kingda manufactures high-reliability PCB assemblies for medical devices requiring precision, stability, and strict quality control. Our engineering team supports applications such as patient monitoring systems, diagnostic equipment, portable medical devices, and healthcare electronics with consistent manufacturing quality and full process traceability.

We provide durable PCB assembly solutions for industrial control systems operating in demanding environments. Our capabilities support PLC controllers, motor drives, industrial sensors, automation equipment, power control systems, and factory automation applications that require long-term reliability and stable performance.

Kingda supports the telecommunications industry with high-performance PCB assemblies for networking and communication equipment. Typical applications include routers, switches, optical communication modules, RF devices, wireless communication systems, and network infrastructure products requiring high-speed signal integrity.

Our PCB assembly solutions are widely used in energy storage, power management, renewable energy, and power conversion systems. We manufacture reliable assemblies for battery management systems (BMS), solar inverters, charging equipment, smart meters, and industrial power electronics.

Kingda supports AI-driven electronic products with precision PCB assembly for intelligent computing and edge AI applications. Our manufacturing capabilities are suitable for AI modules, embedded computing systems, machine vision equipment, robotics, GPU accelerator boards, and intelligent automation devices.

We provide flexible PCB assembly solutions for connected devices across consumer, commercial, and industrial IoT applications. From smart home products and wearable devices to wireless sensors, smart gateways, asset tracking, and environmental monitoring systems, Kingda helps customers accelerate product development and scalable production.

Why choose Kingda as your PCB assembly factory?

Kingda is dedicated to delivering dependable PCB assembly solutions through advanced manufacturing, rigorous quality management, and responsive engineering support. With a customer-focused approach and years of industry experience, we help bring innovative electronic products from concept to production with confidence.

One-Stop Manufacturing Solution

From PCB manufacturing and component sourcing to SMT/THT assembly, testing, box build, and final delivery, Kingda provides a fully integrated manufacturing solution that simplifies project management and ensures seamless production.

Engineering Expertise

Our experienced engineering team works closely with customers throughout the project lifecycle, providing DFM reviews, manufacturing optimization, and technical support to improve product quality, manufacturability, and production efficiency.

Advanced Manufacturing Capability

Equipped with modern SMT production lines and precision assembly equipment, Kingda supports prototype, low-volume, and high-volume production with consistent quality, flexible manufacturing, and dependable delivery performance.

Quality Without Compromise

Quality is embedded into every manufacturing stage through standardized processes, advanced inspection technologies, and comprehensive testing procedures. Every PCB assembly is produced in accordance with strict quality standards to ensure long-term reliability.

Reliable Supply Chain

Supported by a trusted global sourcing network and efficient production planning, Kingda ensures stable material availability, flexible manufacturing schedules, and dependable delivery for projects of all sizes.

Responsive Partnership

We believe successful manufacturing starts with effective communication. Our dedicated sales and engineering teams provide fast quotation support, timely project updates, and professional technical assistance throughout every stage of your project.