Box Build vs. Electromechanical Assembly

Box build is the integration of components and wiring into a finished enclosure. Electromechanical assembly is the broader joining of electrical and mechanical parts into a working unit — a box build is one subset of it. General Assembly & Manufacturing Corp. delivers both.
Buyers often use “box build” and “electromechanical assembly” interchangeably, but scoping a quote is easier when the difference is clear. The two overlap heavily — a box build is a type of electromechanical assembly — and GAMC handles the full range, from a single sub-assembly to a fully integrated, tested unit.

How They Compare

Box Build

• Integration of components, wiring, and hardware into an enclosure or chassis
• Often includes PCB mounting, wire harness routing, and final enclosure assembly
• Delivered as a finished, enclosed unit ready for customer integration or deployment

Electromechanical Assembly

• The broader combining of electrical and mechanical components into a working product
• Spans sub-assemblies, harnesses, mechanical hardware, and system-level integration
• A GAMC specialty: assemblies incorporating motors, pumps, and blowers — fluid, gas, and air movement
• Includes box build as one common form, plus open assemblies and sub-assemblies

Which Do You Need?

If the end product is enclosed — a cabinet, chassis, or housing with components integrated inside — you’re describing a box build. If you’re combining electrical and mechanical parts more broadly, with or without an enclosure, that’s electromechanical contract manufacturing. GAMC scopes either from your drawings and bill of materials, then builds, integrates, and tests in-house.
Enclosure and panel wiring is covered under wire harness and control panel manufacturing. Either model can run as build to print manufacturing or as turnkey contract manufacturing, depending on who sources the materials.

At a Glance

• Box build: components and wiring integrated into a finished enclosure.
• Electromechanical assembly: electrical and mechanical parts combined into a working unit, box build included.
• GAMC scope: sub-assemblies, harnesses, box builds, system integration, and test.
• Envelope: palm of your hand to the back of a pickup truck.
• Best fit: build-to-print, low-to-medium volume, hundreds to tens of thousands of units.

Frequently Asked Questions

Is a box build the same as electromechanical assembly?

A box build is one form of an electromechanical assembly — components and wiring integrated into an enclosure — while electromechanical assembly is the broader category.

Does GAMC do both box builds and electromechanical assemblies?

Yes. GAMC builds sub-assemblies, harnesses, box builds, and fully integrated, tested electromechanical units.

How do I know which to request?

If your product is enclosed with components inside, ask for a box build. For broader electrical-plus-mechanical integration, ask for electromechanical assembly. GAMC will help scope it.

What do you need to quote a build?

Your drawings, bill of materials, volume, and key requirements. GAMC scopes the build, integration, and testing from there.

Do you handle low-volume programs?

Yes. GAMC is built for build-to-print, low-to-medium-volume work.

Request a Quote

Tell us about your assembly — box build or broader electromechanical integration — and GAMC will build, integrate, and test it under one roof. Our team will follow up promptly.

• Share your drawings, BOM, and specifications.
• Include target volumes, materials, and key requirements.
• Call 847-639-8380 or request a quote.