Machinery covers and operator consoles
We check formed panels, access doors, mounting features, and finish requirements. This is relevant to CNC equipment, packaging lines, semiconductor automation, and battery production machinery.
Enclosure design review for RFQs
Electrical Enclosure Design Review Checklist for RFQs
A production-ready enclosure design needs more than a finished 3D model. Bend allowances, hardware locations, weld access, coating requirements, and inspection criteria all affect fit, cost, and delivery.
We review electrical enclosure designs for sheet metal manufacturability and quote scope. Send us your CAD files and drawings, and our engineering team can flag details that may affect fabrication before you place an order.
Planning a new enclosure or moving an existing design to production? Email your RFQ to info@enclosuremfg.com.
What we review before quoting
Our design review focuses on manufacturability and the information needed to price your enclosure accurately. Use this checklist to prepare your package:
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Overall dimensions and assembly
Confirm enclosure size, panel interfaces, door swing, mounting points, and any required clearance for installed components.
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Material and thickness
Specify the material and thickness for each part. If you are open to alternatives, tell us so we can discuss suitable options.
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Bends and formed features
Identify critical flange dimensions, bend directions, hem requirements, and surfaces that must remain flat or visually consistent.
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Hardware
Mark PEM nuts, studs, standoffs, hinges, latches, and other purchased or installed components. Include part numbers where available.
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Welds and appearance
Define weld locations, visible surfaces, and any requirements for bead blending or cosmetic finishing.
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Cutouts and interfaces
Provide dimensions and locations for cable entries, ventilation, displays, connectors, and component mounting patterns.
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Finish and color
State the coating or surface finish, color reference, and any masking requirements for grounding points or threaded features.
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Inspection and acceptance
List critical dimensions, fit checks, documentation, or other acceptance criteria that should appear in the RFQ.
When a requirement is not yet decided, note it as open rather than leaving it ambiguous. That lets us identify the decision during review instead of making an unapproved assumption.
Engineering checks that can prevent rework
Our five mechanical and manufacturing engineers review 3D CAD and drawings for details that can create problems during forming, assembly, or finishing. The aim is practical: clarify the design before production so you can reduce avoidable changes, fit issues, and quoting uncertainty.
Bend allowances and bend-line positions influence the finished dimensions of formed parts. We check the geometry against the intended assembly and can provide bend-line corrections where needed. This is especially useful for multi-panel cabinets and designs with tight interfaces between doors, covers, and internal brackets.
Captive nuts, studs, and standoffs need suitable locations and installation access. We review hardware callouts and placement against the part geometry, then identify details that may need clarification before automated insertion.
Weld sequence and access can affect distortion, especially on long seams or large assemblies. We assess the drawing and assembly requirements for practical weld access and discuss suitable processes for the application. Our equipment includes low-heat-input laser welding, TIG stations, and MIG welding units.
Coating and surface finishing can affect threads, grounding areas, mating surfaces, and cosmetic appearance. We review the specified finish alongside masking and assembly requirements so those details are included in the production scope.
In-house capacity for enclosure production
We manufacture sheet metal parts and assemblies through an integrated production line. Keeping cutting, forming, hardware insertion, welding, and powder coating in-house helps reduce handoffs between suppliers and gives us direct oversight of work in progress.
| Process | Available equipment or capacity | How it supports your project |
|---|---|---|
| Laser cutting | Three fiber laser machines, including 12 kW and 6 kW sources | Profiles parts from carbon steel, stainless steel, and aluminum sheet |
| Sawing and sizing | Three saws for metal profiles, tubing, and aluminum extrusions | Prepares structural members and extruded sections for assembly |
| CNC bending | Five press brakes: two OG35, two OG100, and one OG200 | Supports varied part sizes and multi-stage formed components |
| Hardware insertion and tapping | Seven machines, including auto clinching and servo tapping systems | Installs captive hardware and produces threaded holes |
| Welding | 24 laser, MIG, TIG, and cold-welding units | Matches the weld process to structural, stainless, or appearance needs |
| Assembly and fixturing | 18 heavy-duty tables and platforms, up to 2000 × 6000 mm | Provides reference surfaces for large cabinets and frames |
| Powder coating | In-house spray and curing line, 2500 × 6000 mm | Handles coating for oversized enclosures and structural assemblies |
| Material handling | 3-ton forklift | Supports movement of sheet packs, assemblies, and crated goods |
For assemblies larger than the coating envelope, or for designs with special finish requirements, include the required dimensions and finish details in your RFQ so we can confirm the process route.
Match the review to your enclosure project
Different enclosure applications put different demands on the design. We use your drawings and project requirements to focus the review on the features most likely to affect fabrication and assembly.
Power and energy equipment cabinets
We review panel interfaces, hardware locations, cutouts, and assembly details for inverters, switchboards, BESS equipment, and charging systems.
Outdoor and field cabinets
We check the specified enclosure dimensions, openings, seams, and finish requirements against your application needs. Provide any required NEMA or IP criteria in the RFQ; compliance requirements must be defined and verified for the specific design and configuration.
Large equipment housings and frames
Our 6-meter fabrication platforms support large-format assembly work. Share the overall assembly dimensions and any transport or installation constraints for review.
We typically support high-mix, low-to-medium-volume orders, including batches of 10 to 500 units, as well as recurring supply programs. Your expected order quantity and forecast help us evaluate the appropriate production approach.
RFQ information and production parameters
The clearer your RFQ package, the more accurately we can assess process steps, material needs, and inspection scope. Include the following where available.
If you are still finalizing the design, send the current revision and identify unresolved requirements. We can review the available information and note what is needed to complete the quotation.
| RFQ item | What to provide |
|---|---|
| Design files | 3D CAD model and 2D drawings with revision level |
| Bill of materials | Part numbers, quantities, hardware, and purchased components |
| Material | Grade and thickness for each sheet metal part |
| Finish | Coating type, color reference, surface finish, and masking notes |
| Critical requirements | Key dimensions, tolerances, interfaces, and acceptance criteria |
| Order plan | Prototype or production quantity, batch size, and forecast |
| Delivery details | Required delivery date, destination, and packaging needs |
Quality checks from incoming material to shipment
Our six-person QA/QC team supports a closed-loop inspection process covering incoming material verification, in-process checks, first-article inspection, and pre-shipment inspection. We can align the review and inspection plan with the dimensions and acceptance criteria specified in your drawings and RFQ.
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1
Incoming material
Verification of material grade and thickness on receipt.
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2
In-process checks
Checks during cutting, forming, hardware insertion, and welding.
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3
First-article inspection
Confirmation of the first built part against drawing requirements.
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4
Pre-shipment inspection
Final review of the finished order before it leaves our facility.
For repeat orders, revision control matters. Include the drawing revision and identify any changes from the previous build so the quoted scope and production documents reflect the correct design.
Request an enclosure design review and quote
Send your drawings, CAD files, bill of materials, expected quantities, and target schedule to info@enclosuremfg.com. We will review the package for manufacturing scope, identify information that needs clarification, and prepare an RFQ response based on the requirements provided.
Email: info@enclosuremfg.com
Company address: Building 4, Kuiqing Road, Qingxi Town, Dongguan City, Guangdong Province
Please include “Electrical Enclosure Design Review” in your email subject line to help route your request.