Custom electromechanical assemblies ready to integrate
Justicia Marin is a B2B supplier of custom electromechanical assemblies for manufacturers, OEMs and integrators. An electromechanical assembly is a pre-assembled unit that combines electrical and mechanical elements and is later integrated into your machine, equipment or final product. We start from your drawing, sample or specification: we select and coordinate the manufacturer, and you receive the unit assembled, identified and verified according to the criterion we agree.
What it solves
From separate components to custom electromechanical assemblies
Buying cable, connector and component separately means managing several part numbers, several suppliers and several pre-assembly operations. In industrial practice, electrical pre-assembly describes those preparatory and assembly operations, and the electromechanical sub-assembly is the resulting unit that is later integrated into the equipment; in many enquiries both terms are used with overlapping scopes. Custom electromechanical assemblies group all of that into a single part number, which arrives pre-assembled and allows the agreed verification to be moved to a point before your line.
- A single part number instead of several purchases and several suppliers
- A pre-assembled unit, not loose parts to assemble on your line
- The approved configuration is kept between orders
- A single point of contact for the complete assembly
The internal cabling of the sub-assembly is handled with the same criteria as the build-to-print cable assemblies.
How it is made up
Applications of custom electromechanical assemblies
The exact combination depends on your product; these are the blocks that repeat most.
Cable and wiring
The internal cabling of the sub-assembly, already finished, grouped and with the outlets in the defined position.
Connectors and contacts
Input and output connectors fitted and verified, with the contact suited to the expected cross-section and current.
Mechanical component
Brackets, housings, cable glands, fixing elements or parts that give the assembly its shape and support.
Prior verification
Check of the assembled sub-assembly before shipping, according to the level of control we agree in writing.
Starting data and criteria
What to define to request custom electromechanical assemblies
The quote for custom electromechanical assemblies is prepared on the information available and sets out in writing the scope the selected manufacturer can take on.
- Drawing, sample or specification of the assembly
- Scope: which parts go into the part number and which do not
- Bill of materials (BOM) and accepted equivalents, if any
- Dimensions, interfaces and fixing points
- Cabling, terminations and position of the outlets
- Identification of the sub-assembly and marking required
- Agreed verification level and packaging, if specified
- Estimated volume: sample, pre-series or series
Decision points
Documentation, sample and continuity before the supply is repeated
These three milestones turn an initial need into a configuration that can be ordered again without reinterpretation.
We define the scope
We review which parts go into the sub-assembly, which do not and which operations are no longer done at your plant.
Assembled sample
You receive the complete sub-assembly to validate it on your real product before committing to a quantity.
Recurring supply
With the scope approved, the sub-assembly becomes one more part number in your procurement, with planned deliveries.
How we coordinate the supply
How we manage custom electromechanical assemblies
The key is to fix the scope properly: what goes into the part number and what remains the responsibility of your line.
We define the scope
We review which parts go into the sub-assembly, which do not and which operations are no longer done at your plant.
Closed bill of materials
We fix part numbers, accepted equivalents and substitution criteria so that the assembly is repeatable.
Assembled sample
You receive the complete sub-assembly to validate it on your real product before committing to a quantity.
Recurring supply
With the scope approved, the sub-assembly becomes one more part number in your procurement, with planned deliveries.
Coordinated manufacturing
Manufacturing of custom electromechanical assemblies with specialised manufacturers
The assembly of a sub-assembly depends on its specific configuration: which components go into the part number, how it must be integrated into your equipment, the cabling and terminations, the assembly and identification operations, the volume and the agreed level of control. We select and coordinate the manufacturer whose tooling and processes fit those requirements.
Looking for an electromechanical assembly manufacturer or electrical pre-assembly?
Justicia Marin does not physically manufacture or assemble the sub-assemblies. If you are looking for an electromechanical assembly manufacturer or an electrical pre-assembly supplier, Justicia Marin acts as a B2B technical distributor: it reviews the need, compares components and capabilities, and coordinates manufacturing and assembly with specialised manufacturers, selected according to the drawing, the components included, the interfaces and the volume of the project. Production is carried out through our network; we centralise selection, coordination, the sample where appropriate and the supply so that you work with a single point of contact.
What shapes the manufacture of custom electromechanical assemblies
Components — which part numbers make up the unit and which are left out
Interfaces — how it must be integrated electrically and mechanically into your equipment
Cabling and terminations — conductors, connectors, terminals and position of the outlets
Assembly and identification — assembly and marking operations required
Volume and control — sample, pre-series or series and the agreed verifications
From validated sample to recurring supply
When the project requires it, the manufacturer prepares an assembled sample that you approve on your own equipment before a quantity is launched. From then on we keep the approved configuration between orders, so that repeating the supply does not depend on reinterpreting the drawing.
Justicia Marin has no assembly workshop of its own: we select, coordinate and verify the supply through specialised manufacturers. If the assembly is mainly organised cabling, it is handled as custom wire harnesses; if it starts with validation, as prototype and low-volume cable assemblies.
Related information
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What this service actually covers
The assembly is carried out by a manufacturer in the network selected according to the type of assembly. Justicia Marin defines the scope with you, coordinates the supply and verifies the batch received. We have no assembly workshop or automatic lines of our own: the specific capacity, the means and the verification level possible are confirmed in the quote before the order.
Questions before the quote
Electromechanical assemblies: frequently asked questions
- What exactly is an electromechanical assembly?
- It is a small sub-assembly in which cable, connectors and electrical or mechanical parts have already been brought together: for example a sensor with cable and connector, a switch on a bracket, or a small motor or fan with a connecting lead. The unit arrives as a single part number, ready to integrate into your machine or device. A selected manufacturer assembles it; Justicia Marin coordinates.
- What is the difference from a wire harness or a cable assembly?
- A wire harness or cable assembly consists mainly of wires, terminals and connectors. An electromechanical assembly adds parts with a function or mechanical shape of their own, such as a sensor, switch, motor, housing or bracket. The result is a module that you no longer have to put together: you build it in.
- Which parts can be combined in one sub-assembly?
- Cable and connections, connectors, cable glands, sensors, switches, small motors, fans, brackets, housings and fixing material, as long as the bill of materials and the interfaces are clearly defined. Which combination is feasible depends on the manufacturer that fits the project; we confirm that in writing in the quote.
- What do you need to quote an electromechanical assembly?
- A drawing or photo of the assembly, the bill of materials with part numbers and accepted alternatives, dimensions and fixing points, the position of the outlets, the level of verification required and the expected volume. Acceptance criteria can refer to IPC/WHMA-A-620. With an existing sample we can also start. If anything is missing, we ask before approaching any manufacturer.
- Who physically assembles the sub-assembly?
- A manufacturer that we choose based on the components, the assembly operations, the volume and the level of control requested. Justicia Marin fixes the scope with you, selects and coordinates the manufacturer, manages the sample and checks the batch and documentation received. We do not have an assembly department of our own.
- Can I approve a sample first?
- Yes, and for a new sub-assembly we recommend it. The manufacturer makes an assembled sample that you check on your real product: fit, position of the outlets, function and marking. Only after your written approval is the quantity released and the configuration fixed for later orders.
- What changes in my own assembly work?
- The operations included in the sub-assembly disappear from your line: no more counting, bundling, connecting and marking loose parts. You receive a single part number that has already been checked according to the agreed criterion. Whatever falls outside the scope stays with you; we record that in writing beforehand.
Want to reduce part numbers and operations?
Tell us what you assemble piece by piece today.
With the list of components and a photo of the current assembly we can study whether it makes sense to group it into a single part number.
What you can send us
- Bill of materials or part numbers (Excel, PDF or text)
- Drawing or schematic for custom assemblies (PDF, DXF or similar)
- Estimated quantity and expected repeat orders
- Your priority: competitive price, certification or lead time
- Required standards or documentation
- Target delivery date
Tell us what you need to buy
We reply within 1 working day.