Contact Sales & After-Sales Service

Contact & Quotation

  • Inquire: Call 0086-755-23203480, or reach out via the form below/your sales contact to discuss our design, manufacturing, and assembly capabilities.
  • Quote: Email your PCB files to [email protected] (Preferred for large files) or submit online. We will contact you promptly. Please ensure your email is correct.
Drag & Drop Files, Choose Files to Upload You can upload up to 3 files.

Notes:
For PCB fabrication, we require PCB design file in Gerber RS-274X format (most preferred), *.PCB/DDB (Protel, inform your program version) format or *.BRD (Eagle) format. For PCB assembly, we require PCB design file in above mentioned format, drilling file and BOM. Click to download BOM template To avoid file missing, please include all files into one folder and compress it into .zip or .rar format.

PCBSync / PCB assembly services

PCB assembly.
From prototype
to production.

PCB fabrication, component sourcing and assembly in one project enquiry. Choose your supply arrangement and test requirements, then request a quotation for your build.

Request an assembly quote ↗Plan my assembly

BOM, placement data and Gerber files ready? Request a quote directly. Still planning? Start with the tool below.

SMT placement machines and operators working on an electronics assembly production line
From components to assembled boards.Build requirements · sourcing · inspection and test scope
01 / COMPANYKnow your supplier ↗02 / CAPABILITIESCheck the assembly fit ↗03 / QUALITYReview the evidence ↗

Testing matched to your product

Separate visible-joint inspection, hidden-joint inspection and functional verification.

Choose the test scope →

One project enquiry

Start with your files or a short brief. Pricing and the production schedule follow review of your build.

Start with available files →

Plan before requesting a quote

Understand your assembly budget.

Start with the information you have. Prepare a project brief without counts, or calculate an illustrative processing allowance after entering your details. Components, bare boards and special services are quoted separately.

Have a BOM and design files?

You can request a quotation without counting placements or using the calculator.

Request an assembly quote →
1 Configure your build2 Check what is included3 Request a reviewed quote

PCBSync engineering tools

Assembly & stencil planner

Your requirements first. A reviewed quotation next.

PROJECT PLANNING · USD
Bare PCB planner →
Assembly processing + stencil

Choose a supply arrangement. Component procurement and PCB fabrication are reviewed separately from this processing budget.

01 / Build & sourcing

Not sure of the counts? Uncheck the option and send your BOM for a reviewed quotation.

Board size, panelization & delivery
02 / Stencil specification

Reference allowance: $35 / one-side set or $60 / both-side set. Print sides follow the selected populated sides. Frame dimensions, apertures and finishing require review.

03 / Coating, testing & special requirements

Selected additions appear under “Not yet priced” and are carried into your inquiry.

For coating, include material/standard, thickness, coverage and keep-out areas. For testing or programming, include the procedure, firmware revision, fixture needs and pass/fail limits.

How this reference budget works

The planner uses the existing PCBSync assembly processing model. Its stencil allowance is USD 35 for a one-side set or USD 60 for a both-side set, multiplied by the number of sets. These are uncalibrated planning allowances, not published selling prices. Frame size, apertures, coating and custom construction require review. Assembly quantity means individual boards, not panels.

The displayed ±12% spread is illustrative, not a validated accuracy claim. Special requirements are listed separately and do not silently enter the total. Turnkey selection does not price your BOM. A final quotation requires engineering review of the actual files and material availability.

Valid planner settings can be retained in this browser tab for up to two hours; these planner drafts are kept separately from other tools. Contact details and uploaded design files are not stored by this planner.

One processing allowance is not the complete project cost.
01 · Processing allowanceSetup, placement and applicable standard stencil tooling. An illustrative model, not an order price.
02 · Materials & added workBOM sourcing, bare boards, fixtures, programming, coating and agreed tests: quote separately.
03 · Delivered projectConfirm packing, freight, taxes and delivery terms in the reviewed quotation.
Scope diagram · illustrative; not a price breakdown or proportional cost chart.

Supplier qualification

Review your supplier, with the right evidence.

Company, quality documents & change control

Company & engineering fit

Review the company profile and relevant production capabilities. Share your supplier questionnaire or request a technical discussion about your project.

About PCBSync · Review capabilities →

Files & change control

Start with a non-confidential brief if you need an NDA. Identify the controlling revision and who can approve substitutions or engineering changes.

Start a supplier / project review →

What happens after your inquiry? We review the supplied requirements, clarify open technical and material questions, and prepare the quotation scope. Price, lead time and acceptance requirements are confirmed before you authorize production.

Build the right way

An assembly route that fits your project.

PCB assembly turns a fabricated bare board and electronic components into a populated circuit board. Your project stage and your sourcing arrangement are separate choices: a prototype can be turnkey, and a production run can use customer-supplied parts.

01

Prototype & NPI

Resolve placement, component and test questions before repeating the build. Identify revision changes and define what the first article needs to prove.

Prototype PCB assembly →
02

Low-volume builds

Plan repeat batches around component availability, shared tooling and a controlled BOM. Tell us whether you need one delivery or a staged release.

Low-volume assembly →
03

Production & repeat orders

Agree the approved revision, sourcing plan, inspection records and release process. Repeatability starts with consistent documentation and controlled changes.

Contract manufacturing →

Engineering fit

Match the assembly process to the board.

Use this overview to prepare the right engineering questions. Feasibility depends on the component package, board construction, spacing, process sequence and inspection access; send the actual design to confirm the manufacturing route.

Project requirementWhat to discuss with PCBSyncPrepare for review
SMT / double-sided assemblyPlacement sequence, stencil and reflow requirements; keep-outs and support for the second side.BOM, placement coordinates, polarity and assembly drawing.
BGA & fine-pitch devicesPackage land pattern, moisture handling, solder process and appropriate inspection.Package drawings, pad definitions, via treatment and test access.
Through-hole / mixed technologySoldering route, connector alignment, mechanical support and heat-sensitive parts.Lead dimensions, insertion direction and mechanical constraints.
Flex and rigid-flex assembliesCarrier support, stiffeners, bend regions and fixture requirements.Flat and formed views, stack-up and component keep-outs.
Programming & functional testProgramming interface, power-up sequence, acceptance criteria and fixture ownership.Firmware revision, test procedure, connector pinout and pass/fail limits.

Explore SMT capabilities, BGA assembly, through-hole assembly and flex assembly for a closer technical fit.

Parts & procurement

Keep the sourcing plan visible.

Avoid a quote that looks complete but leaves critical parts unresolved. State who supplies each item, whether substitutions are permitted and what happens when an approved part is unavailable.

Choose who supplies the components
ArrangementPCBSync quotation scopeYour starting information
TurnkeyComponent sourcing and assembly; include bare-board fabrication when required.BOM with manufacturer part numbers, approved alternatives and traceability needs.
Partial turnkeyAssembly and the BOM lines you assign for sourcing.Mark customer-supplied lines, supplied quantities and expected availability.
Consigned componentsAssembly using your supplied kit; identify any additional services.Kit list, packaging and quantities. Clarify setup consumption, shortages and unused-material handling before release.

Keep approvals clear: identify permitted alternatives and who can approve substitutions. Material availability, excess stock and delivery arrangements belong in the reviewed quotation.

For a combined project, include PCB manufacturing requirements in the same inquiry. Component price and availability, excess material, test fixtures, packaging and shipping should be identified separately from placement cost.

Beyond component placement

Specify the finishing and verification your product needs.

Stencils & solder deposition

Choose new tooling, verified reuse or a customer-supplied stencil. Aperture design, foil thickness, frame dimensions and paste release must suit the component mix.

PCB stencil services →

Coating & cleaning

Identify coating chemistry, coverage, thickness and keep-out regions for connectors and test points. Discuss cleaning and verification requirements before selecting the process.

Conformal coating →

Testing & programming

Define inspection coverage separately from electrical or functional test. Supply a controlled firmware revision, programming interface and acceptance procedure when required.

X-ray inspection · IC programming →

Select these requirements in the planner. Special service costs are reviewed against the actual process and are shown separately from the reference assembly budget.

Quality & acceptance

Choose the verification your product needs.

Match the check to the question
MethodWhat it can help checkScope to agree
AOI / optical inspectionVisible component placement, polarity and solder features.Visible areas, inspection criteria and the required record.
X-ray inspectionHidden-joint features beneath BGA and similar packages.Devices to inspect, sampling and acceptance limits. It does not prove functional performance.
In-circuit / flying-probe testAccessible electrical nodes and selected component or circuit checks.Test access, coverage, fixture or program requirements and limits.
Functional testingOperation under the specified power, firmware and interface conditions.Controlled procedure, fixtures, firmware and pass/fail limits.

Different checks find different problems. Optical inspection can identify visible placement and solder issues; X-ray inspection helps assess hidden joints. Electrical or functional testing needs a defined procedure and suitable test access.

Agree the acceptance criteria before the build. Identify which checks apply, which records you need and how nonconforming findings or engineering questions should be handled. A named test step alone does not describe the coverage.

Review the PCBA testing laboratory and functional testing options. For regulated or reliability-sensitive products, request the applicable certification scope and project-specific evidence during supplier qualification.

Operator working at an automated optical inspection machine
Optical inspection is one part of a defined verification plan.

Complex PCBA project gallery

Real boards. Specific assembly questions.

A closer look at populated boards from the PCBSync product library. Match your project to the assembly challenges below, then share the design details you need us to review.

Populated circuit board with FPGA and DSP packages, memory devices and edge connections
FPGA & DSP assembly detailReview package layout, component access and inspection requirements for complex boards.
Dense processor board with memory connectors, integrated circuits and external ports
Dense computing & fine-pitch layoutsReview paste apertures, placement access, reflow sequencing and inspection of hidden joints. Include package drawings and the required acceptance records.
BGA assembly →
Processor module mounted above a carrier board with connectors and external interfaces
Module-on-carrier integrationBoard-to-board connectors, standoffs and module clearance make the mechanical drawing part of the assembly package. Define the power-up and interface tests.
System integration →
Populated board with several large integrated circuits and a shielded module
Signal processing & connected devicesSpecify module orientation, RF keep-outs and connector access. Identify test points and functional checks before approving the production fixture.
Functional testing →
Mixed-component assembly with a large edge connector and surface-mounted circuitry
Mixed technology & edge connectionsConnector seating, soldering sequence and enclosure clearance need a coordinated review. Distinguish automated placements from manual insertion and soldering.
Through-hole assembly →
Control board with many cable headers and a central integrated circuit
Multi-interface control electronicsRepeated headers create orientation and pinout risks. Share cable assignments, polarity markings and any keep-out areas required for conformal coating.
Conformal coating →
Compact control board with inductors, capacitors and multiple cable connectors
Compact power & control assembliesTall parts, connector access and local heat sources affect tooling and protection. Record the operating checks and packaging needs alongside the BOM.
SMT capabilities →

Have a similarly complex assembly? Include the BOM, placement data, assembly drawing and the inspection or test coverage you need. Request a project review →

From data to delivery

Define the release points before production.

Confirm the start point before comparing lead times.
1 · Files releasedResolve revisions, BOM, placement and acceptance requirements.
2 · Materials readyConfirm approved parts, boards and required tooling are available.
3 · Build approvedAgree first-article release, batch inspection and test coverage.
4 · Ship & deliverConfirm packing, destination, freight and any customs responsibilities.
Dependency diagram · activities may overlap; no fixed turnaround or arrival date is implied.
SMT assembly line with automated placement equipment
Share the current revision and complete build package before scheduling.

Review the build package

Resolve BOM, placement and fabrication questions. Confirm which files control the build and document requested changes.

Confirm parts and first article

Check material readiness, tooling and any first article inspection requirements. Agree what must be approved before the full batch proceeds.

Build, inspect and release

Follow the agreed inspection and test scope, then confirm packing and delivery arrangements. Requested delivery dates need review against material readiness and production capacity.

An urgent delivery should start with a complete file review and a parts availability check. Discuss quick-turn assembly when time is critical, or explore the assembly process before preparing your package.

Design for assembly

A few checks now can prevent a difficult build.

Give the build team a consistent revision

Keep Gerber data, BOM, centroid file and drawings synchronized. Make do-not-populate positions explicit; list reference designators, quantities and manufacturer part numbers without relying only on informal part descriptions.

Make orientation and access unambiguous

Specify polarity, pin 1, connector direction and critical mechanical clearances. Include fiducials, panel rails and depaneling constraints for review. For functional test, show accessible test points and identify the expected power-up sequence.

Firmware, test software and approved substitutions need their own revision controls. Record who can authorize a change and how it will be confirmed before the build.

Your RFQ preparation check

Tick what you have prepared. Missing items do not prevent an enquiry.

What still needs confirmation?

    Take my checklist to Contact →

    Need the bare boards, too?

    Plan fabrication and assembly together. Share the board stack-up, finish and panel requirements so that fabrication choices support the assembly process.

    Explore PCB manufacturing →

    Common project questions

    Before you request an assembly quote.

    What files are needed for a PCB assembly quote?

    Start with the BOM, Gerber and drill data, placement file and assembly drawing. Include quantities, sourcing ownership, test and programming requirements, target delivery date and the current revision. If a file is missing, explain what is still being developed.

    Can you supply both components and PCBs?

    You can request a combined fabrication, component sourcing and assembly quotation. Turnkey sourcing is reviewed against the BOM and part availability. Identify approved alternatives and any items that you will supply yourself.

    Does the online estimate include the full turnkey cost?

    No. The planner separates the assembly processing allowance and any new stencil allowance. Components, bare boards and selected special requirements still need review. Turnkey describes who supplies the material; it does not automatically price your BOM.

    How is assembly lead time determined?

    The schedule depends on file approval, material availability, tooling, process steps, inspection and production capacity. State the delivery date you need, then confirm the schedule in the project quotation.

    What changes when a prototype becomes a production order?

    The approved revision, sourcing plan, test coverage and release requirements need to be controlled. Review first-article findings and change history, then agree quantities, delivery batches and records for the repeat build.

    Can I request an NDA before sharing the design?

    Yes, use the Contact page to request an NDA before uploading confidential files. You can begin with a non-confidential project brief and the requirements you want to discuss.

    Can I request a stencil without PCB assembly?

    Yes. Choose Stencil only in the planner and specify print sides, the number of sets, board or print area, format and foil thickness. Send paste-layer data and printer frame requirements for an exact quotation. The reference allowance does not price every frame or custom construction.

    Can I add conformal coating, programming and testing?

    Yes. Mark the requested services in the planner and describe the required coverage in your inquiry. Coating needs material, thickness, masking and keep-out instructions; programming and functional testing need controlled files and an acceptance procedure. These items are reviewed separately from the base processing budget.

    What if I do not know the placement counts yet?

    Uncheck the placement-count option in the planner. It will prepare a project brief without displaying a numerical assembly price. Send the BOM and available design files so the build scope can be reviewed.

    Your next step

    Turn the build requirements into a reviewed quote.

    Use one inquiry to align the board revision, component ownership and acceptance requirements. A quotation request starts a review; it does not place an order.

    • Design package: BOM, Gerber and drill files, placement data and assembly drawings.
    • Build scope: quantities, turnkey or consigned supply, programming and test coverage.
    • Delivery needs: required arrival date, destination and any split deliveries.

    Still preparing the files? Begin with a non-confidential brief. Request an NDA before attaching confidential design data.

    Send everything through Contact.

    1. Prepare your planner selections and RFQ checklist.
    2. Continue to Contact and review the carried project brief.
    3. Add it to your enquiry, then attach available files when ready.
    Continue with my project brief →

    Our team reviews the supplied scope and clarifies open questions before confirming pricing and the production schedule.

    Return to the assembly planner ↑
    PCBSync engineering resources · Review the current project specification with our team before production release.