Compartments follow the modules
Define the outer boundary and internal walls in one layout around the modules requiring coverage.
Enlarge image
MULTI-CAVITY SHIELDING CAN
Multi-Cavity EMI Shield
Map each compartment to the circuit layout, then review partition landing points, lid fit and access to the covered areas.
Partition coverage around the module layout, coordinating the outer frame, internal walls and lid with the PCB.
Use the image as a design reference. The agreed drawing and sample define the supplied part.
STRUCTURE & FUNCTION
Choose the structure
around your design.
A multi-cavity shield uses internal walls to divide board-level coverage for modules that require separate compartments. Set cavity count and placement from the actual module boundaries, together with the single-enclosure or frame-and-lid arrangement.
Partitions combined with the main structure
Assess cavities within a single enclosure, frame or removable-lid design, with coverage and service access specified separately.
Openings assigned to each task
Place connections, handling openings and maintenance access around each cavity's function, partition landing points and components.
CUSTOMIZATION DETAILS
Turn design requirements
into drawing details.
Share dimensions, mating-part information and operating requirements so we can review the manufacturing and inspection approach.
| Design item | What to discuss | Information to provide |
|---|---|---|
| Outer frame and coverage | Define the overall outline and covered area around board-level space | PCB boundary, module layout and outer-frame drawing |
| Cavities and partitions | Define cavity count, positions and wall landing points from module partitions | Compartment drawing and partition mounting or grounding relationships |
| Component height and keep-outs | Specify the highest components, can height and connector clearances in each cavity | Component heights by compartment, sections or an assembly drawing |
| Openings and servicing | Discuss openings for connections, handling and full-lid or compartment-level access | Opening purpose, locations and required service-access area |
| Material and lid fit | Agree on material, thickness, finish and any matching lid structure | Part material requirements and frame-to-lid fit drawings |
| Partitioned samples | Charged: standard samples 3–5 days; expedited sampling 48 hours; tooling and sample production 7–10 days. Sample stage only; volume production and delivery excluded. Match the process to the structure | Actual mating assembly, cavity tasks to validate and sample quantity |
Dimensions and critical tolerances are agreed for each projectMaterials & surface finishes ↗
DESIGN CONSIDERATIONS
How will the shield
fit into your assembly?
Start with the module location, installation method and access requirements, then resolve the detailed fit.
Read the related design guide ↗A board with multiple modules
Identify the module and coverage boundary for every cavity, then place the outer frame and partition landing points.
Connections between compartments
Where connections or components cross a boundary, specify their location, clearance and the purpose of any associated opening.
Access to a particular cavity
Identify the compartments requiring access and discuss the practical method for removing the full lid or accessing a specific area.
DESIGN CONSIDERATIONS
Review the structure and assembly
- Identify compartments and their corresponding modules on the part and assembly drawings.
- Check partition landing points and lid fit with the mating parts before finalizing the geometry.
- Agree on openings and access to each compartment before ordering samples.
DRAWINGS & REQUIREMENTS
Information to provide with your drawing
- Part and assembly drawings showing compartments and their corresponding modules, with units and revision details.
- Dimensions and mating-part information for partition landing points and lid fit.
- Requirements for openings and access to each compartment, together with sample and batch quantities.
TOOLING & SAMPLE VALIDATION
Tooling decisions behind
Multi-Cavity EMI Shield.
Ruishuo makes tooling in-house, connecting die design and CAD/CAM simulation with stamping and inspection. The tooling route for your part is reviewed against the agreed drawing, material and assembly requirements.
Review the partitions as part of the complete enclosure.
A multi-cavity shield introduces internal walls as well as an external perimeter. Tooling review should consider partition position, wall height, roof clearance and how the internal features align with the PCB layout. An inspection plan limited to the outside dimensions can overlook a partition that interferes with a component or misses its intended landing area.
- Provide the PCB partition layout and the internal features that require measurement.
- Define reference datums for the outer walls and each critical partition.
- Check internal clearances and contact locations using the sample and mating assembly.
Use the sample report to close the drawing review.
Paid samples include a full dimensional inspection report. Ruishuo's inspection equipment includes 2.5D vision measurement systems, CMMs and profile projectors; measurement methods and any additional functional checks are selected for the project. Incoming, in-process and outgoing inspections support the agreed requirements as the part moves into production.
DRAWING → SAMPLE → PRODUCTION
Approve the sample,
then confirm production.
Samples are paid, with the scope and cost agreed from your drawing and process requirements. Mass-production and delivery schedules are confirmed separately.
Standard samples3–5 days
Expedited sampling48 hours
Tooling & sample production7–10 days
Timings depend on the agreed sample plan.
Tooling and sample production exclude mass-production delivery.
- 01
Review the drawing
Identify the revision, mating parts, material, critical dimensions and sample quantity.
- 02
Agree on the sample plan
Confirm the manufacturing route, sample cost and schedule.
- 03
Check the sample
Review fit, contact and assembly, then complete the validation required by your project.
- 04
Confirm production inputs
Approve the drawing revision, inspection criteria and packaging before scheduling the batch.
PRODUCT FAQ
Questions about
Multi-Cavity EMI Shield?
Bring the available drawing and assembly details, even if some dimensions or material choices are still open.
Discuss your project ↗Is a larger number of cavities always better?
Cavity count should follow module layout and partitioning tasks. Additional cavities still require assessment of wall landing points, mounting and access; count alone does not establish system performance.
What information defines partition positions?
Provide module boundaries, component heights and the partition mounting or grounding locations on the PCB. Use one layout revision to review the outer frame and internal walls together.
Can a multi-cavity shield have a removable lid?
The design can be reviewed as a matched frame and lid. Specify full-lid or compartment-level access, along with the relevant fit and operating clearance.
RELATED PRODUCTS
Compare related designs.
EMI Shielding Frame
Review the frame's PCB boundary and its mating lid together, including locating features and electrical contact requirements.
View product ↗
Frame-Type EMI Shield
Confirm the complete frame-and-cover configuration rather than selecting from the frame outline alone.
View product ↗
Board-Level Shielding Cover
Define component coverage and partitions on the board, then check height, pad locations and the connection method.
View product ↗