ISO 9001 precision machining factory in Dongguan, China — prototypes to production, shipped worldwide[email protected]+86 176 2154 1688

Sheet Metal Fabrication

Sheet Metal Stainless Steel and Aluminum Enclosures

These are custom sheet metal enclosures, cabinets and mounting frames for machinery and electronics, fabricated from stainless steel, aluminum and carbon steel. Panels are laser cut, bent, welded or riveted, then finished by powder coating, brushing or anodizing. Machined mounting plates and brackets are supplied with them. They suit machinery builders who need protective housings for controls, sensors and drives.

Material
Stainless Steel
Tolerance
to ±0.005 mm
MOQ
1 piece
Prototype lead time
3–7 days
  • Laser-cut panels with cutouts and louvers
  • TIG, spot welding or rivets by sealing need
  • Captive hardware installed before finishing
  • Powder coat, brushed stainless or anodized aluminum
ISO 9001 quality system, 100% critical-dimension inspection
NDA on request; your drawings are never shared
Door-to-door shipping with export documents

Item ref. 1601579167787 ·

Specifications
ProcessLaser cutting, press-brake bending, welding, riveting, CNC machining
MaterialsCarbon steel Q235; stainless steel 304; aluminum 5052
Tolerance±0.05 mm on machined features; sheet tolerances per drawing
Surface FinishPowder coating, brushing, anodizing, painting
Typical ProductsControl cabinets, junction boxes, machine guards
MOQ1 piece; prototypes through mid-volume
Drawing FormatsSTEP, IGES, X_T, STL, DWG, DXF, PDF
Lead TimePrototypes typically 3–7 working days; production 10–20
InspectionFirst-article, in-process and CMM checks; reports on request

Manufacturing

How we make this part

Process, material options and inspection for sheet metal stainless steel and aluminum enclosures.

Enclosures are designed around what goes inside: DIN rails, PCBs, cable entries and cooling. We unfold the 3D model, laser cut panels with cutouts and louvers, bend them on press brakes, and join them by TIG welding, spot welding or rivets depending on sealing needs. Captive nuts, studs and hinges are installed before finishing so threads stay clean.

Powder-coated carbon steel is the most economical option for indoor cabinets. 304 stainless resists washdown and outdoor exposure without coating. 5052 aluminum enclosures are about one-third the weight of steel and are anodized or powder coated. Continuous welded seams with a gasketed door are needed for higher ingress protection, while riveted or spot-welded designs are cheaper where sealing is not required.

Panel dimensions, cutout positions and door alignment are checked, and welded seams are inspected visually. Finish thickness and adhesion are checked on powder-coated parts. A test fit with mounting plates or components is done where samples are supplied. Typical products include control cabinets, sensor housings, machine guards, junction boxes, battery cabinets and electronic instrument cases.

FAQ

Frequently asked questions

Which material should I use for an outdoor enclosure?

304 stainless steel is a durable, low-maintenance choice for outdoor and washdown areas. Powder-coated aluminum is lighter and also resists corrosion well. Powder-coated carbon steel is cheaper but can rust where the coating is damaged, so it is best for sheltered or indoor locations.

Can you build enclosures to an IP rating?

We can fabricate enclosures designed for an IP rating, with continuous welded seams, gasket channels and suitable cable glands. Formal IP certification testing is done by a third party or by you. Share the target rating, and we review the design details that affect sealing.

How do I get a quote for sheet metal stainless steel and aluminum enclosures?

Send a 3D model (STEP or IGES) and a 2D drawing with tolerances, material, finish and quantity through the quote form or by email. An engineer replies within 24 hours on business days with price, lead time and any DFM suggestions.

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