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CATEGORIESA server chassis or electrical enclosure must do more than cover the components. Board location, power supply, cooling path, connectors, cable access, mounting rails and maintenance clearances all influence the sheet-metal structure.
Hongming Sheng manufactures drawing-based chassis, rackmount housings and electrical enclosures from prototype through repeat production.
Email: info@hms1688.com
Send Enclosure DrawingThe online form collects project and contact details. Drawing attachments can also be sent separately to the email shown on this page.
The outer dimensions are only the starting point. The enclosure should be reviewed against the actual devices and the way the finished equipment will be installed and serviced.
Studs, trays, brackets and clearances for boards, power supplies and internal modules.
Fan openings, vents, filters, baffles and unobstructed inlet-to-outlet paths.
Cutouts, labels, rear panels and tool clearance around cables and plugs.
Rack ears, rails, handles, wall brackets, base plates or equipment mounting points.
Removable covers, hinged doors and module replacement paths.
Conductive contact areas, studs and coating masks where specified.






Interfaces, material, finish and quantity.
Profiles, vents, ports and mounting holes.
Shells, panels, trays and brackets.
Studs, inserts, nuts and mounting features.
Welding, riveting or mechanical fastening.
Powder coating, anodizing or specified finish.
Panels, doors, brackets and agreed hardware.
Often selected for structural housings and cabinets, with powder coating or other specified protection.
Considered where corrosion resistance, cleaning or an exposed metal appearance is required.
Useful where lower weight, conductivity or anodized appearance supports the equipment design.
Provide component heat information, fan selection and airflow direction. Vent openings alone do not confirm final thermal performance.
Identify conductive joints, bonding studs and uncoated contact areas. Product-level EMC performance requires system validation.
Define board, rail, bracket and connector datums so accumulated tolerances do not interfere with installation.
Confirm which modules, fans, filters or power units must be replaced and the tools or access space required.
Mark visible faces, color, texture, logo areas and acceptable fabrication marks before finishing.
Identify delicate finishes, protruding hardware and whether panels can ship flat or as removable assemblies.
Environmental sealing: An IP target depends on seams, doors, gaskets, fasteners, cable entries and the final assembly. If a rated result is required, define the test method and responsibility before quotation.
Equipment performance: We manufacture the enclosure to approved drawings and agreed inspection scope. Thermal, EMC, electrical and regulatory validation of the complete equipment remains with the customer or system integrator unless separately agreed.
Yes, provide the required rack unit height, chassis depth, mounting-ear geometry, rail interface and internal hardware layout. These dimensions should be confirmed against the intended rack system.
An early manufacturability review can begin with preliminary files, but production drawings should use the final board, fan, connector and power-component locations.
The manufacturing scope can include studs, inserts, rails, handles, hinges, locks, brackets and agreed mechanical assembly when the specifications are defined.
No. Joint design, door compression, cable entries, fasteners and the complete assembled condition all matter. A rating should be tied to a defined test and responsibility.
Send the drawing, component layout, material, finish and quantity. Our team can review the sheet-metal structure, mounting interfaces and fabrication route before quotation.
Customer drawings, CAD files, samples and technical specifications are handled confidentially. NDA support is available for OEM projects.
Contact us and just send us your drawing (SolidWorks,ProE,CAD,PDF,DXF...)
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