Custom Switchgear Enclosures & Buildings

Material selection depends on your specific application requirements. ABS provides excellent impact resistance and dimensional stability for indoor enclosures. HDPE offers superior chemical resistance and durability for harsh environments. UV-resistant ASA/ABS withstands outdoor exposure without degradation. High-temperature ABS performs in elevated-heat applications. PETG delivers clarity when visual inspection is needed. Our engineering team evaluates your electrical codes, environmental conditions, dielectric requirements, and budget to recommend the optimal material, ensuring your switchgear enclosure meets both performance specifications and cost targets.

Prototype timelines vary based on design complexity, but we typically deliver functional samples within 3-4 weeks. Our process starts with SolidWorks CAD design, followed by CNC machining of low-cost wood or polyurethane tooling. Once the master pattern is mounted, we thermoform and CNC-trim prototype enclosures to your exact specifications. This rapid prototyping approach allows you to evaluate fit, function, and design performance before committing to production tooling, with design modifications easily accommodated at this stage.

Yes, our facility is equipped for any production scale. We accommodate prototype runs and short production batches using standard thermoforming equipment and CNC trimming. For high-volume requirements, our 4'x7' rotary thermoforming machine delivers cycle times 2.5 times faster than conventional single-station equipment, enabling cost-effective mass production. With eight thermoforming machines ranging from 2'x3' to 5'x9' and over 20,000 square feet of manufacturing space, we seamlessly scale from initial prototypes through thousands of finished enclosures while maintaining consistent quality control.

Our comprehensive fabrication capabilities include precision CNC trimming to exact dimensions, drilling for mounting hardware and electrical connections, fastener installation, heat bending for custom contours, ultrasonic or adhesive bonding for multi-piece assemblies, riveting, and installation of threaded inserts. We also provide edge finishing, gasket channel routing, and assembly of complete enclosure systems with doors, hinges, and latching hardware. These secondary operations transform thermoformed components into installation-ready, turnkey switchgear enclosures that arrive ready for your electrical equipment integration.

Thermoformed plastic enclosures offer several advantages: significantly lower tooling costs compared to metal stamping dies, excellent corrosion resistance eliminating rust concerns, superior dielectric properties for electrical insulation, lighter weight reducing installation labor and shipping costs, and design flexibility for complex contours and integrated features. Plastics also dampen vibration and reduce condensation issues. While metal provides structural advantages for very large or load-bearing applications, thermoformed enclosures deliver ideal performance for most switchgear applications at a fraction of the cost and lead time.

Our sales and engineering team provides comprehensive design support throughout your project. We assist with material selection based on electrical codes, environmental conditions, and performance requirements. Our team optimizes tooling design for manufacturability and cost-effectiveness using SolidWorks CAD software. We recommend proper wall thickness, rib placement, mounting provisions, and access features. During prototyping, we collaborate on design refinements to improve function and reduce production costs. This consultative approach ensures your switchgear enclosure is engineered for both optimal performance and efficient manufacturing from the start.

Hill Plastics employs a custom quality control system that monitors production at every stage. Initial first-article inspection verifies dimensional accuracy against your drawings before full production begins. During manufacturing, we inspect parts for material consistency, wall thickness uniformity, and proper forming. CNC-trimmed components undergo dimensional verification to ensure tolerances are maintained. Final inspection checks appearance, edge quality, hardware installation, and overall specification compliance. With staff averaging 20+ years of experience and rigorous process controls, we deliver enclosures that consistently meet your quality standards and functional requirements.

Production lead times depend on order quantity, tooling requirements, and complexity. After prototype approval, aluminum production tooling typically requires 4-6 weeks. Once tooling is complete, initial production runs for moderate quantities (100-500 units) generally ship within 3-4 weeks. High-volume orders leverage our rotary thermoforming equipment for accelerated production cycles. Rush orders can often be accommodated based on current production schedules. We provide detailed timeline estimates during project planning and maintain consistent communication throughout manufacturing to keep your switchgear enclosure project on schedule.