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Custom Sheet Metal Services
Get custom sheet metal parts cut, bent, welded and finished to your CAD file. Sango CNC delivers precision prototypes in as little as 3 days and scales to full production runs.
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Upload CAD files (STEP, DXF, DWG) for real-time pricing and free DFM feedback.
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Sheet Metal Processes We Run In-House
Five core processes take your flat CAD pattern to a finished, assembly-ready part. Each one links to its own dedicated service page.
Process 01Custom Sheet Metal Enclosures
Turnkey custom sheet metal enclosures, electronic chassis and electrical cabinets with PEM hardware, welded seams and powder coating. NEMA & IP rated.
Process 02Sheet Metal Welding Services
Precision TIG, MIG, spot and handheld fiber laser welding for sheet metal assemblies. AWS D1.1 and ISO 5817 certified welders, parts in 5–7 days.
Process 03CNC Punching Services
CNC turret punching for holes, louvers, knockouts and perforations in steel, aluminum and copper. ±0.1 mm accuracy, 0.5–3 mm sheet. Free DFM review.
Process 04Sheet Metal Bending Services
CNC press brake bending for steel, stainless, aluminum and copper. ±1° bend angles, ±0.254 mm bend-to-edge, up to 3000 mm length. Parts in 3–5 days.
Process 05Laser Cutting Services
Custom laser cutting for steel, stainless, aluminum, copper and brass. ±0.1 mm accuracy, sheets up to 3000 × 1500 mm, parts in 3 days.
Global Manufacturing Network for Custom Sheet Metal
Sango CNC builds custom sheet metal parts for engineers, OEMs and product teams worldwide. Fiber lasers, CNC press brakes, turret punches and welding cells work under one quality system, so a single prototype and a 10,000-piece order follow the same process.
Every order starts with a free DFM review. Our engineers check bend radii, hole-to-edge distances and flat patterns before cutting begins, which prevents rework and keeps lead times short.
Sheet Metal Materials
Choose from aluminum, steel, stainless steel, copper and brass in standard gauges from 0.5 mm to 6 mm. Each grade differs in formability, weight and corrosion resistance. Our engineers recommend the right alloy for your load, environment and budget.
| Material | Characteristics & Best Use | Available Grades | Color | Lead Time |
|---|---|---|---|---|
| Aluminum | Light, corrosion-resistant and easy to bend, with about one-third the weight of steel. Best for enclosures, brackets and heat-sensitive electronics. | 5052-H32, 5083, 6061-T6 (cut only), 1100 | Silver | About 5 business days |
| Stainless Steel | Strong, hygienic and highly corrosion-resistant. Used in medical, food, marine and outdoor parts. | SUS 304, 316/316L, 301, 304 #4 brushed | Silver-gray | About 5 business days |
| Steel | Low-cost, strong and easy to weld. The standard choice for frames, chassis and structural parts. | SPCC (cold-rolled), Q235, 1018, SPHC (hot-rolled) | Silver-gray | About 5 business days |
| Copper | Top electrical and thermal conductivity. Ideal for busbars, grounding plates and heat spreaders. | C101, C110, T2 | Red-orange | About 6 business days |
| Brass | Easy to form with a gold tone and good machinability. Suited to decorative panels, terminals and connectors. | C26000, C27400, C28000 | Golden-yellow | About 6 business days |
Surface Finishes & Post-Processing
Protective and cosmetic finishes that add corrosion resistance, wear life and brand color to every sheet metal part.
Powder Coating
Electrostatically sprayed powder baked into a 60–120 µm layer that resists chips, UV and corrosion. Available in any RAL or Pantone color, in matte, gloss or textured finish.
Anodizing
Type II anodizing builds a hard oxide layer on aluminum for corrosion protection and dyed colors like black, red and gold. Type III hard coat adds extra wear resistance.
Plating & Chem Film
Zinc, nickel and chrome plating protect steel parts from rust. Chem film (Alodine) keeps aluminum conductive and primes it for paint.
Brushing & Bead Blasting
Brushing gives stainless steel and aluminum a uniform satin grain that hides fingerprints. Bead blasting leaves an even matte texture before coating.
Sango CNC Custom Sheet Metal Capabilities
Clear process limits help you design right the first time. General tolerances follow ISO 2768-m unless your drawing states otherwise.
| Specification | Laser Cutting | Bending | Welding | Punching |
|---|---|---|---|---|
| Material Thickness | 0.5–20 mm steel, 0.5–12 mm aluminum | 0.5–6 mm | 0.8–10 mm | 0.5–3 mm |
| Max Work Size | 3000 × 1500 mm sheet | 3000 mm bend length | 2000 × 1500 mm assembly | 2500 × 1250 mm sheet |
| Dimensional Tolerance | ±0.1 mm | ±0.254 mm bend-to-edge | ±0.5 mm assembly | ±0.1 mm |
| Feature Tolerance | ±0.2 mm cut feature | ±1.0° bend angle | AWS D1.1 / ISO 5817 | ±0.2 mm hole-to-bend |
| Standard Lead Time | 3 business days | 3–5 business days | 5–7 business days | 3–5 business days |
| Best For | Profiles, slots, fine patterns | Brackets, channels, boxes | Frames, sealed housings | Louvers, perforations, knockouts |
Custom Sheet Metal Parts and Industries We Support
From a single laser-cut bracket to a powder-coated server chassis, our parts go into products that must fit, seal and last. Engineers rely on us for repeatable bends, clean welds and finishes that pass inspection the first time.
Powder-Coated Aluminum Control Enclosure
2 mm 5052 aluminum, laser cut, bent to ±0.5°, fitted with PEM studs and finished in RAL 9005 matte black.
Applications of Custom Sheet Metal
Custom sheet metal turns flat stock into strong, light and repeatable parts. It covers everything from a prototype bracket to a finished cabinet, at lower cost than machining from solid.
✓ Advantages of Sheet Metal
- High Strength-to-Weight: Bent flanges and ribs add stiffness without adding mass, so a 1.5 mm part carries real loads.
- Low Tooling Cost: Laser cutting and press brakes need no custom dies, so prototypes cost far less than stamping or casting.
- Fast Turnaround: Simple parts move from CAD to shipped in 3 business days.
- Scales to Production: The same flat pattern runs from 1 piece to 10,000+, and unit cost drops as volume grows.
★ Typical Applications
- Enclosures & Chassis: Electrical boxes, server racks and control cabinets that protect electronics.
- Brackets & Mounts: Formed supports that locate motors, sensors and PCBs.
- Panels & Covers: Front panels, access doors and guards with cutouts and silk-screened labels.
- Frames & HVAC Parts: Welded frames, ducts and vents for machines and buildings.
Latest News & Engineering Articles
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