Build your PCBA in Thailand without rebuilding your supply chain.

Our Rayong factory runs SMT, through-hole, test and box build with a parts network and process our engineers have run since 2012. You get a quote in 1–3 days, a free DFM report, and one engineer who answers.

Get a quoteHow a transfer works

No minimum order. Prototypes, pilot runs and volume on the same lines.

Aerial view of the Tradewind PCBA production hall and office building in Rayong, Thailand
  • Production hall: 4 SMT lines, 2 wave-solder lines
  • Engineering and offices
  • Owned 16,000 m² site
Our plant in Rayong, Thailand, in production since April 2025. 30 minutes from Laem Chabang deep-sea port.
  • 1–3 daysto a quote, with NRE itemized
  • 24 hoursto a free DFM report, 120+ checks
  • 99.9%SMT first-pass yield
  • 860+component sourcing partners
  • No MOQruns from 5 boards to volume

Eight things that go wrong when PCBA changes hands, and what we do about each

Buyers who switch assemblers tend to describe the same problems. Here is how each one is handled in Rayong, and the evidence behind it.

  • Parts decide the ship date.

    Your quote flags long-lead and non-cancellable parts and proposes alternates for you to approve. Common parts come from Thai suppliers; the rest come from a network we have bought from for years.

    860+ sourcing partners, including 450+ manufacturers and 300+ authorized distributors.

  • Parts get swapped without asking.

    We build to the manufacturer part numbers on your BOM, and any alternate needs your written approval. Every reel is barcode-checked against the BOM before it is loaded, so a wrong part stops the line.

    Authorized channels only. High-value ICs can go to a third-party lab for decap, X-ray and functional testing.

  • The pilot run was fine. Volume was not.

    Samples, pilot runs and volume go through the same lines and the same quality system. If first-pass yield drops below its control limit, the MES stops the line until the cause is found.

    99.9% SMT first-pass yield. 19 inspection gates from DFM review to final QA.

  • Quotes take weeks and hide costs.

    Most quotes go out in 1–3 days. NRE, stencils, test fixtures and programming are listed as separate lines, so you can compare us like for like.

    A free DFM report comes with the quote, not after the order.

  • Emails go unanswered.

    Your program has one named engineer from DFM to volume. Order review, purchasing, production, inspection and shipping status are visible to you online as they happen.

    Engineers and buyers are on site in Rayong, with customer support around the clock.

  • Smaller programs get bumped.

    There is no minimum order: 5 or 10 boards are welcome, and they run on the same lines as volume. With 250 people in Rayong, a mid-volume program is one we notice and staff properly.

    One consumer program grew with us from first PCBA samples to 100,000 units a year.

  • Design problems show up at first article.

    Every quote starts with a DFM review against 120+ checks, covering BGA and LGA land patterns, impedance and thermal relief, so issues are fixed before a stencil is cut.

    DFM report delivered within 24 hours of receiving complete files.

  • "Made in Thailand" turns out to mean made in China.

    SMT, reflow, AOI and X-ray, wave solder, test and assembly all happen in our Rayong plant, and we give your customs broker the process and material records an origin review asks for. How origin works for PCBA

    SMT in the exporting country is what US customs rulings on PCBA origin turn on.

How moving a board to Rayong works

The same steps whether you are transferring a product from another factory or launching a new one.

  1. Send files

    Gerber, BOM, centroid and test spec. Current yields help if you have them.

  2. DFM and quote

    DFM report within 24 hours of complete files. Quote in 1–3 days.

  3. Sourcing plan

    Long-lead parts ordered early. Alternates proposed for your approval.

  4. First article and pilot

    First-article inspection, X-ray and FCT, reported before volume.

  5. Volume

    Tracked by serial number in our MES. PPAP for automotive programs.

  6. Ship

    Sea freight from Laem Chabang or air from Bangkok by FedEx, DHL or UPS.

Real timeline: a US power-tool brand needed welding-machine PCBAs built outside China within six months. Volume production in Rayong started on schedule in July 2025, and their supply cycle dropped from 6 weeks to 4. Read the case

SMT production hall in Rayong with automated placement lines
The 2,500 m² Class 100,000 clean room that houses our SMT lines.

Will your board fit our lines?

Most production boards sit inside our standard window. If yours does not, ask: larger panels, thinner boards and finer pitch run as special processes.

SpecStandardOn request
Board size50×50 to 450×400 mmup to 800×450 mm
Layersup to 2024–40
Smallest part020101005
BGA / CSP pitch0.35 mm0.30 mm
Board thickness0.5–3 mmthinner or thicker

Full process window, equipment and test coverage

Numbers you can hold us to

These are Rayong plant figures. Each board is tracked by barcode in our MES, from incoming parts to final inspection, so they come from production records rather than estimates.

SMT first-pass yield
99.9%
On-time delivery, monthly orders
98%
Lot acceptance rate
99%
Quality staff in Rayong
58
Process engineers with 8+ years in PCBA
60%
Turnover in key positions
≤5%

The Rayong plant is certified to ISO 9001, ISO 14001, IATF 16949 and ISO 13485.

How we control quality

Are we the right fit?

A short answer saves both of us a quote cycle.

We are a good fit for

  • Industrial, robotics, power-tool, new-energy, automotive and medical electronics
  • Any quantity: no minimum order, from 5-board prototypes to steady volume
  • Boards with BGA, fine pitch, mixed SMT and through-hole, coating and functional test
  • Teams adding a second source outside China, or moving production out
  • Products that need PCBA plus enclosure, cabling and packing

We are not the right choice for

  • ITAR or other defense-controlled work
  • Commodity boards where the lowest unit price outweighs origin, support and test

Work our engineers have done

Customer names stay private. The engineering does not.

Welding machine power board assembly with heat sink and toroidal inductor
Built in Rayong

Welding-machine PCBA for a US power-tool brand

The need
A reliable PCBA supply chain in Thailand, in production within six months, without depending on Chinese material.
What we did
Set up new Yamaha placement and automated soldering, sourced chips from the US and components from Malaysia and Singapore alongside local suppliers, and supported the customer's factory and product audits.
Result
Volume production on schedule in July 2025. Supply cycle cut from 6 weeks to 4.
Bare AI accelerator card PCB with two large BGA footprints

AI accelerator card

The board
85 part types, 4,000 parts and 9,200 placements: a GPU with 3,700+ BGA balls next to 440-ball DDR.
The problem
The GPU needs more heat to wet fully; the DDR bridges if it gets too much.
What we did
Step stencil (0.14 mm at the GPU, 0.12 mm elsewhere), a nitrogen reflow profile capped at the DDR's limit with longer time above liquidus, then 100% SPI, AOI and X-ray.
Result
Two pilot lots delivered to spec, followed by repeat volume orders.

All six case studies

Questions buyers ask first

How fast do I get a quote, and what is in it?

Most quotes go out within 1–3 days. They come with a free DFM report and list NRE, stencils, fixtures and programming as separate lines, so nothing is buried in the unit price.

What files do you need?

Gerber or ODB++, a BOM with manufacturer part numbers, a pick-and-place (centroid) file, quantities and your target date. Assembly drawings and a test spec let us quote testing and box build accurately. You can start with a description and send files later.

Do you take small orders?

Yes. There is no minimum order quantity: we build runs of 5 or 10 boards, pilot lots and volume on the same lines and under the same quality system.

The plant opened in 2025. Why trust a new factory?

The building is new; the process is not. Rayong is run by engineers with more than a decade of PCBA experience, on the MES, inspection gates and sourcing network they have used since 2012. Our first US customer transfer reached volume production inside six months.

Will my boards count as made in Thailand?

That is decided by the customs authority of the importing country, based on your BOM and the work done here. US rulings on PCBA turn on where SMT assembly happens, and ours happens in Rayong. We provide process flow, BOM origin breakdown and production records so your broker can assess it.

Can we sign an NDA before sending design files?

Yes. Tick the NDA box on the quote form and we will send ours, or send your own for signature before you share files.

Can we audit the factory?

Yes. The plant is 1.5–2 hours by road from Bangkok Suvarnabhumi Airport. We supported a US customer through factory and product audits during their 2025 transfer.

Tell us about your board. An engineer replies within one business day.

You do not need files to start. Describe the board and volume; we will come back with questions or a quote.

What do you need? (optional)
No files needed yet. We reply with where to send Gerber, BOM and centroid.

Get a quote