Custom Sheet Metal Cabinet Case Study for Charles

HSJ Fabrication helped Charles develop a custom power equipment cabinet, taking the project from conceptual sketches to an assembled prototype. Following approval of the engineering drawings, HSJ completed prototype fabrication and assembly within 20 days, supporting the project's transition to small-batch production.

Project Overview

The Challenge: Combining Brand Appearance with Functional Requirements

Charles needed a distinctive appearance for its large power equipment cabinets while meeting the project's functional requirements. The development team required support with sheet metal component design and assembly processes to move the concept forward.

For these custom sheet metal cabinets, the challenge extended beyond external styling. The finished prototype also needed to address sealing performance and electrical insulation requirements.

The Solution: Collaborative Design and Engineering

Charles supplied initial sketches and dimensions measured from a sample cabinet. HSJ worked with the customer to refine the concept, select suitable materials and manufacturing processes, and finalize the design.

HSJ then prepared the 3D model and CAD engineering drawings for customer review and approval. This collaborative approach connected the desired appearance with practical manufacturing and assembly decisions.

For buyers planning similar projects, HSJ’s sheet metal cabinet design guide provides additional considerations for defining enclosure requirements.

Prototype Fabrication and In-House Assembly

After the design documents were approved, HSJ completed fabrication and assembly of the sample cabinet within 20 days. The project brought together design support and the manufacturing capabilities described in the case materials: laser cutting, bending, welding, surface treatment and product assembly.

HSJ handled the cabinet assembly in-house, including screw fastening and insulation board installation. The physical prototype provided a basis for verifying the design before small-batch production.

This project illustrates how sheet metal prototype fabrication connects approved engineering drawings with a tangible enclosure for customer evaluation.

The Result: A Prototype Ready for the Next Production Stage

According to the project record, the prototype achieved the intended color and design expression while meeting the project’s sealing and electrical insulation requirements. Its completion enabled the project to progress to small-batch production.

The 20-day milestone applies specifically to this project’s prototype fabrication and assembly after drawing approval; it is not a standard lead-time commitment for every cabinet order.

Planning a custom cabinet project? HSJ Fabrication accepts sketches, complete drawings and STEP files. Share your application, assembly requirements and target schedule to discuss the next development steps.