Box Build & System Integration

From Bare Board to
Finished Product

Full electromechanical system integration — PCBA installed into enclosures, cable harnesses built and routed, sub-assemblies integrated, functionally tested and packaged for direct shipment. One vendor, one finished product.

Full BOM Sourcing ESD-Controlled Line Functional Test & Burn-In Pack & Ship Ready
100%
Functional test coverage
Custom
Cable & harness fabrication
600mm
Max enclosure dimension
15d
Typical turnkey lead time
850+
Systems built and shipped
100%
Units functionally tested
24h
Turnkey quote turnaround
ESD
Controlled assembly floor
Industries We Serve

Where finished systems
leave our floor

Any product that needs more than a bare board — enclosure, cabling, test, packaging — is a box build candidate. Hover to explore.

01

Automotive

Wire harnesses and control-unit sub-assemblies built and installed to spec, with continuity and pull-test verification on every harness.

02

Medical

Diagnostic and monitoring devices built to ISO 13485 with full enclosure assembly, burn-in and system-level functional test before shipment.

03

Industrial

Control panels and PLC cabinets built complete — DIN rail mounting, terminal wiring, labeling and functional test on the bench before install.

04

Consumer Electronics

Finished products shipped direct to fulfillment centers — enclosure assembly, firmware flashing, custom retail packaging and kitting included.

05

Telecom / 5G

Base station cabinets and network equipment integrated with power supplies, RF cabling and rack-mount hardware, burn-in tested before dispatch.

06

Aerospace & Defense

Ruggedized enclosures with mil-spec connectors and cable assemblies, built and serialized under AS9100D-aligned process controls.

07

IoT & Smart Devices

Gateways and sensor hubs assembled, radio-tested and configured with production firmware before packaging for direct retail shipment.

08

Energy / Power

Inverters and power supply units integrated into enclosures with high-current cabling, load-tested and burned in under full rated output.

Our Process

From PCBA to
shippable product

Box build is a manufacturing discipline in its own right — mechanical, electrical and software all have to come together correctly, in the right order, every unit.

01

PCBA Receipt & Incoming Inspection

Every board arriving for box build — whether assembled by us or supplied by the customer — is visually and electrically checked against the build spec before it enters the integration line.

Incoming QC · spec verification
02

Mechanical & Enclosure Preparation

Enclosures, chassis and brackets are prepped, drilled or fitted with standoffs, fasteners and panel-mount hardware ahead of PCBA installation. Full mechanical BOM sourced alongside the electronic BOM.

Enclosure prep · hardware fit-up
03

Sub-Assembly, Cabling & Harness Integration

Custom cable and wire harness assemblies are fabricated in-house, connectorized and routed between boards, panels and power supplies. Sub-assemblies are built and staged before final integration.

Custom harness fabrication · connectorization
04

System Integration & Firmware/Config Flashing

PCBAs are installed into the prepared enclosure, all inter-board and power cabling connected, then production firmware and device-specific configuration are flashed and verified on each unit.

Firmware flashing · configuration
05

Functional Test, Burn-In & Final QC

Every unit runs on a custom test fixture built for your product, verifying functionality against your acceptance criteria, followed by burn-in soak testing where the application calls for it.

100% functional test · burn-in
06

Labeling, Serialization & Pack-and-Ship

Front-panel labels and silkscreen applied, units serialized for full traceability, then packed to your custom packaging design and kitted for direct drop-ship fulfillment.

Serialization · custom packaging · drop-ship
Equipment & Capabilities

The floor behind
a finished product

Electronics, mechanical assembly, test and packaging all run under one roof.

ESD-Controlled Assembly

ESD-Controlled Box Build Line

Dedicated system-integration stations with wrist straps, ESD flooring and ionized air at every bench, keeping populated boards protected through mechanical assembly, cabling and test.

ESD workstations Static-controlled floor Torque-controlled fastening
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Cable & Harness

Custom Cable & Wire Harness Fabrication

In-house cutting, stripping, crimping and connectorization for custom cable assemblies and wire harnesses — built to your drawing, tested for continuity and pull strength on every unit.

Crimp & IDC termination 100% continuity test Pull-strength verified
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System Test

System-Level Functional Test & Burn-In

Custom test fixtures engineered for your specific product, running full functional verification on every unit, backed by burn-in chambers for extended soak testing on applications that need it.

Custom test fixtures 100% functional test Burn-in soak capable
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Packaging & Fulfillment

Custom Packaging, Kitting & Pack-and-Ship

Custom foam, corrugate or blister packaging designed around your product, with kitting, serialized labeling and drop-ship fulfillment direct to your customer or distribution center.

Custom packaging design Kitting & bundling Drop-ship fulfillment
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Technical Specifications

Turnkey box build,
fully specified.

Every parameter below reflects our standard box build capability. Full test reports, serialization records and packaging specs ship with every order.

  • 600mm
    Max enclosure dimension
  • 100%
    Functional test coverage
  • 15d
    Standard turnkey lead time
  • 100%
    Units serialized & traceable
Request Capability Sheet →
ParameterBox Build CapabilityStatus
Enclosure Size RangeHandheld up to 600 x 500 x 300 mmAvailable
Cable AssemblyCrimp, IDC, solder, custom drawingAvailable
BOM SourcingElectronic + mechanical + electromechanicalAvailable
Assembly EnvironmentESD-controlled workstationsAvailable
Firmware / ConfigurationProduction flashing & config per unitAvailable
Functional Test Coverage100% of units, custom fixturesAvailable
Burn-In TestingAvailable on request, per applicationAvailable
Serialization & TraceabilityFull unit-level serial + lot trackingAvailable
Packaging OptionsCustom foam / corrugate / retail / kittedAvailable
Standard Lead Time12 – 18 working daysAvailable
Quality & Compliance

Certified processes your quality team can audit.

A box build is only as reliable as its weakest sub-assembly. Our QMS covers electronics, mechanical assembly and final system test with the same rigor — full documentation, every unit.

ISO 9001 : 2015
Third-party audited quality management
ISO 13485 : 2016
Medical device quality management
IATF 16949 : 2016
Automotive quality management system
AS9100D
Aerospace & defense quality management
IPC-A-610 Class 2 / 3
Acceptability of electronic assemblies
UL Recognized / RoHS / REACH
Full material and safety declarations available

Testing & Inspection Methods

  • Incoming PCBA InspectionVisual + electrical check before integration
  • ESD-Controlled Assembly ProcessWrist straps, static-safe flooring, ionized air
  • Cable & Harness Continuity / Pull Test100% of custom-built cable assemblies
  • Firmware & Configuration VerificationVersion and checksum confirmed per unit
  • 100% System-Level Functional TestCustom fixtures built to your acceptance spec
  • Burn-In / Soak TestingAvailable for extended-duty applications
  • Serialization & Traceability AuditUnit-level record from PCBA lot to finished good
  • Final Visual QC & Packaging InspectionPre-shipment check against packing spec
Case Studies

Projects we've delivered

Real box build and system integration challenges — and how we solved them.

Industrial · Control Panel

PLC Control Cabinet Build

Full DIN-rail control panel build — PCBA install, terminal wiring, custom harnesses and functional test against the customer's ladder logic before shipment.

40+
Cable runs/unit
100%
Functional test
18d
Lead time
Outcome

Consolidating wiring, PCBA install and test under one order cut the customer's assembly time from three vendors to one, with zero field wiring errors reported.

Medical · Diagnostic Device

Portable Diagnostic Unit Build

ISO 13485 box build combining PCBA, custom enclosure, battery harness and a 48-hour burn-in soak before final functional release testing.

48h
Burn-in soak
0DOA
Field failures
100%
Serialized
Outcome

48-hour burn-in caught two marginal battery connector units before shipment, and full serialization gave the customer instant lot traceability during their audit.

Telecom · Network Equipment

5G Base Station Power Cabinet

Rack-mount cabinet integration with power supply modules, RF cable routing, custom labeling and pack-and-ship kitting for a direct-to-site rollout.

600mm
Cabinet width
1PO
Single order
100%
Load tested
Outcome

Full drop-ship kitting to 60+ deployment sites eliminated the customer's own warehousing and staging step, shortening rollout time significantly.

Why HanSphere

Why product teams
choose us for box build.

Turning a bare board into a finished, tested, shippable product touches mechanical, electrical and software domains at once. We run all three under one process owner — so nothing gets lost between hand-offs.

1PO
Full turnkey BOM

Electronics and mechanical BOM sourced together

PCBs, components, connectors, enclosures, fasteners and cable stock all sourced under a single purchase order — no separate mechanical supplier for you to manage.

100%
Functional test coverage

Custom test fixtures, built for your product

Our test engineering team builds a dedicated functional test fixture around your acceptance criteria, so every single unit is verified — not sampled — before it ships.

100%
Serialized & traceable

Serial-level traceability from PCBA to finished unit

Every finished product carries a serial number linked back to its PCBA lot, cable batch and firmware version — full traceability for warranty claims and field recalls.

DDP
Drop-ship fulfillment

Pack, kit and ship direct to your customer

Custom packaging designed around your product, kitted to your spec, and shipped direct to distribution centers or end customers — no intermediate warehousing step needed.

FAQ

Frequently asked questions

Common questions about box build and system integration assembly.

PCB assembly produces a populated circuit board (PCBA). Box build takes that PCBA and builds it into a complete, shippable product — installing it in an enclosure, wiring cable harnesses, integrating sub-assemblies, flashing firmware, running functional test and burn-in, then labeling and packaging the finished unit.

Yes. We source the full BOM — components, connectors, cable stock, enclosures, fasteners, brackets and any electromechanical parts — under a single purchase order, so you don't need to manage a separate mechanical supplier alongside your electronics vendor.

Yes — cutting, stripping, crimping, IDC and connectorization are all done in-house to your drawing or specification, with continuity and pull-strength testing on every harness before it goes into final assembly.

Yes. Production firmware flashing and device-specific configuration are standard steps in our system integration stage, verified per unit against your specified version and checksum before functional test.

Our test engineering team builds a dedicated fixture around your product's acceptance criteria — power-on self-test, I/O verification, communications checks and any custom functional steps you specify. Where your application needs it, we add extended burn-in soak testing to screen out early-life failures before shipment.

Yes. We design custom retail or industrial packaging around your finished product, kit units to your spec, and drop-ship directly to distribution centers or end customers — removing the need for you to warehouse and repack finished goods.

Get a Quote

Start your box build
project today.

Our system integration team will review your BOM, mechanical drawings and test requirements, and return a full turnkey quote within 24 working hours.

  • Full electronic + mechanical BOM review included
  • NDA signed on request — standard practice
  • Custom test fixture engineering available
  • Response within 24 working hours
  • No commitment required to get a quote
Request Box Build Quote All files encrypted · Max 80MB per upload · NDA available
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