Custom U-Shape Enclosures | China's Premium Sheet Metal Factory
- Flexible Ordering: No minimum quantities—ideal for prototypes or production runs.
- No Minimum Order Enclosures
- Global delivery, Real factory, welcome to visit

Versatile U-Shape Enclosures for Electronics Projects
Looking for a flexible, three-sided protective solution? XTJ Precision Mfg’s custom U-shape enclosures—sometimes called “clamshell” designs—are the perfect fit for electronics and circuit board applications. These enclosures provide easy access via through-panel connectors on one side and can be adapted for rack-mounting needs. We build them 100% to your specifications in just 3-5 days, with no minimum order required. Enjoy our one-stop-shop service for complete, ready-to-use enclosures, including expert design support at an affordable price.

U-Shape Enclosures Examples
- RoHS Compliant
- Fully custom width and heights accomodated at no extra cost
- Fully customizable with materials, finishes, graphics, and markings.
Tailored Customization at XTJ Precision Mfg
We make personalization straightforward. Here’s how we customize your U-shape enclosure:
Materials
Crafted from durable options including Cold Rolled Steel for strength, Galvanneal for corrosion protection, Stainless Steel for hygiene-critical uses, and Aluminum for lightweight designs.
Custom Materials
Need a specialized material not listed? Contact us online to discuss your unique requirements, and we’ll source or customize materials to meet your project’s specifications.
With XTJ Precision Mfg, you can create fully customized rackmount enclosures using these premium materials, delivered in 3-5 days with no minimum order.

Stainless Steel Sheet
Strong, corrosion-resistant, and ideal for demanding environments requiring a professional finish.

Brushed Stainless Steel
Features a linear, textured finish for a sleek, modern look with enhanced scratch resistance.

Brushed Stainless Steel
Features a linear, textured finish for a sleek, modern look with enhanced scratch resistance.

Matte Stainless Steel
Offers a non-reflective, subdued finish for a sophisticated, understated appearance.

Industrial Stainless Steel
Heavy-duty and rugged, perfect for industrial applications where durability is paramount.

Galvanized Steel
Zinc-coated for superior corrosion resistance, ideal for enclosures needing a paintable or powder-coated finish.

Mild Steel (Iron)
A cost-effective, versatile option for robust enclosures with excellent structural strength.

Aluminum
Lightweight, corrosion-resistant, and durable, perfect for applications prioritizing reduced weight.

Cutouts and Access
Precision-machined openings tailored to your connectors and ports.

Hardware Solutions
Fasteners
Precision-engineered screws, bolts, and rivets to securely assemble your enclosure.
Handles
Ergonomic, durable handles in various styles for easy installation and transport.
Rubber Feet
Non-slip, vibration-dampening feet to stabilize and protect your rackmount in any setup.
Additional Hardware
Customize with drawer slides, mounting brackets, hinges, or cable management solutions to meet your specific requirements.
Sheet Metal Thickness Guide
Thickness is foundational—it dictates your enclosure’s rigidity, overall weight, bend radii, and tooling compatibility. Opt for thinner gauges in compact designs for easier forming, or thicker ones in larger builds for added robustness. Uniform thickness prevents weak spots and maintains structural integrity.
Refer to our gauge chart for specifics across materials like aluminum and steel, helping you balance form, function, and fabrication feasibility.

Finishes for Custom Enclosures
Powder Coating
A tough, protective coating available in various colors, providing excellent resistance to corrosion, abrasion, and UV exposure.
Chem-Film Coating
A chromate conversion layer for aluminum, boosting corrosion resistance and electrical conductivity.
Passivation
A chemical process for stainless steel that removes surface contaminants, enhancing corrosion resistance and maintaining a pristine finish.
Anodizing
Strengthens aluminum surfaces with a corrosion-resistant, customizable colored finish.
Grained Finish
A linear, brushed texture that delivers a sleek, modern aesthetic with improved resistance to scratches.
Vibratory Finish
A uniform, non-directional polish that creates a smooth, professional look suitable for diverse applications.
Custom Graphics & Labeling
Transform your custom U-shape enclosure with high-quality graphics and permanent markings for branding, serialization, labeling, or decorative purposes. XTJ Precision Mfg provides in-house solutions customized to your requirements:
Digital Printing: Vibrant, high-resolution graphics for logos, labels, or intricate designs, offering flexibility for full-color applications.
Silkscreening: Durable, precise printing in single or multiple colors, ideal for clear, long-lasting text and branding.
Laser Marking: High-precision etching for permanent serial numbers, barcodes, or detailed designs, ensuring durability and clarity.

Why XTJ Precision Mfg Excels in Sheet Metal Fabrication
Our sheet metal expertise
delivers enclosures with superior electrical conductivity, reduced EMI emissions, and toughness against industrial wear. This method slashes costs and speeds up timelines. Start with smart design choices using our guidance, and let our specialists handle the rest—from concept to completion.
Backed by automated tools and quality checks, our process ensures precision every time. Get an instant quote online and discover the efficiency of partnering with a trusted sheet metal leader.
Ready to Get Started?
Design your custom U-shape enclosure today—upload your specs for a fast quote, or consult our team for pro tips. At XTJ Precision Mfg, we turn ideas into durable realities, shipped in 3-5 days with zero hassle.