Turnkey PCB Assembly | Turnkey Electronics Manufacturing

Turnkey PCB Assembly Service Process

PCBONLINE offers turnkey electronics manufacturing service for OEM terminal companies, solution companies, business makers, and research institutes. We complete DFM, PCB fabrication, component sourcing, PCB assembly, PCBA value-added, and testing under one roof.

Step 1. PCB manufacturing

Send your Gerber files, drill files, and BOM. Our engineers check them and return a quotation with the price and the lead time for each stage. If you do not have a Gerber file, send the PCB requirements and we do the R&D and manufacture to them.

Step 2. We fabricate the PCBs.

After DFM, production starts on your confirmation. Our two large PCB manufacturing bases in Jiangxi and Jiangsu Provinces manufacture the PCBs and ship them to our turnkey PCB assembly factory in Shenzhen.

Step 3. We source the components at the same time.

Our supply chain purchases the components and cuts the stencils while the PCBs are in fabrication. Our component warehouse next to the turnkey PCB assembly factory in Shenzhen is temperature- and humidity-controlled with smart management cabinets. As soon as the components pass the incoming inspections, we store them temporarily for PCB assembly.

Step 4. SMT and THT assembly

Our SMT process includes solder paste printing, solder paste inspection, SMD pick-and-place, pre-reflow AOI, reflow soldering, and post-reflow AOI. Through-hole parts go through wave or selective soldering. Additionally, PCBAs with BGA or QFN chips have to undergo the X-ray inspection.

Step 5. PCBA testing and value-added

Prototype PCBA orders must pass first-article inspection before bulk PCBA production. We then perform functional testing and burn-in on the PCBA. We also apply conformal coating and program the ICs.

Step 6. We assemble the finished product and ship it.

We provide DFM for the enclosure or co-design it with you. Our long-term partner, one of the top three enclosure manufacturers in China, produces the enclosure to our requirements. We install the PCBA, print the product codes, and pack the finished product with the instruction manual, inner packing, and outer carton. We ship by air, sea, or rail through DHL, FedEx, UPS, or your forwarder.

Turnkey PCB Assembly Supplier PCBONLINE

PCBONLINE has offered turnkey electronics manufacturing since 2005. We own two large PCB manufacturing bases in Jiangsu and Jiangxi Provinces, and the turnkey PCB assembly factory, a smart OEM team, and headquarters in Shenzhen.

Our two large PCB manufacturing bases

Our two advanced PCB manufacturing bases in Jiangsu and Jiangxi Provinces cover multilayer FR4, HDI, high-frequency, flexible, and rigid-flex PCBs. Our Jiangsu manufacturing base is equipped with independent immersion gold and electroplated gold lines. We hold the permits and the equipment for gold salt purchasing, storage, use, and wastewater treatment, so we complete every PCB production step in-house.

Our turnkey PCB assembly factory

We assemble PCBs in Shenzhen on six fully automatic SMT lines with 3D SPI, up to 376 SMD placements per side, dual AOI, and lead-free 13-zone reflow. Two THT lines solder the through-hole parts. On the four back-end lines, our engineers perform functional testing, conformal coating, burn-in, and IC programming.

Our engineering team.

Our engineers review the Gerber files, the drill files, and the BOM before we start production and return DFM feedback with the quotation. Our engineering and R&D team can also perform PCB layout, prepare the BOM, co-design the enclosure, and generate the test files.

Certifications and standards

Our PCB manufacturing is certified with ISO 9001:2015, ISO 14001:2015, IATF 16949, REACH, RoHS, and UL, and our PCB assembly acceptance standards are IPC-A-610 Class 2 or Class 3.

Turnkey PCB Assembly Advantages of PCBONLINE in Industries We Focuses On

PCBONLINE provides turnkey PCB assembly for OEM companies and solution companies. We focus on the fields of AI hardware, IoT products, industrial control, medical electronics, and automotive electronics.

AI hardware

We assemble AI server motherboards with high GPU density. We successfully completed turnkey PCB assembly for a 24kW AI server project, for which we also provided custom cables and connectors with the customer.

IoT products

Our engineers have years of ESP R&D experience and help you solve the R&D and engineering problems in your IoT product. We have successfully manufactured PCBA projects for AIoT, industrial IoT, smart farm equipment, smart livestock farming equipment, smart wearables, and AI-powered office electronics.

Industrial control

We design the thermal management for industrial control and power equipment PCBA. Heat dissipation determines the service life of the device.

Medical electronics

We manufacture medical device PCBAs to the quality and traceability requirements of medical electronics. For medical, automotive, military, and aerospace circuit boards, we perform the four-terminal sensing test to ensure their micro resistance falls within qualified tolerances.

Automotive electronics

We are one of the early one-stop PCBA manufacturers for cell contact systems (CCS) and custom BMS PCBA, and we support your engineering work in the PCBA and in the whole battery pack. We operate under ISO 9001:2015 quality management.