Wichtige Erkenntnisse
- A custom metal enclosure protects internal components from dust, water, impact, and EMI — material selection and IP/NEMA rating are the two most critical design decisions.
- Blechbearbeitung (Laserschneiden + CNC Biegen + Schweißen) is the most cost-effective method for enclosure Produktion at 1-500 units.
- DFM rules for enclosures: maintain ≥1.5× Materialstärke for hole-to-edge distance, add bend reliefs, and design for assembly direction.
- BravoFabs produces individuelle Gehäuse in Dongguan, China — from prototype to Produktion with full finishing (Pulverbeschichtung, Anodisieren, silkscreen).
Material Selection for Kundenspezifische Gehäuse
| Material | Dicke | Am besten geeignet für | Oberfläche Options |
|---|---|---|---|
| Cold-Rolled Steel (SPCC) | 0.8-3.0mm | General indoor enclosures | Pulverbeschichtung, wet paint |
| Edelstahl 304 | 0.8-2.5mm | Food, medical, outdoor | Brushed, Passivierung |
| Aluminium 5052/6061 | 1.0-4.0mm | Lightweight, corrosion-resistant | Anodisieren, powder coat |
| Verzinkter Stahl (SGCC) | 0.8-2.0mm | Outdoor, cost-sensitive | Pulverbeschichtung |
IP & NEMA Rating Guide for Enclosures
| Rating | Protection Level | Typische Anwendung | Manufacturing Impact |
|---|---|---|---|
| IP54 / NEMA 3 | Dust-protected, splash-proof | Indoor industrial | Standard gaskets, no special seals |
| IP65 / NEMA 4 | Dust-tight, water jet-proof | Outdoor, washdown | Continuous gasket, welded seams |
| IP66 / NEMA 4X | Dust-tight, powerful jets | Marine, harsh outdoor | Edelstahl, full seam Schweißen |
| IP67 / NEMA 6 | Dust-tight, temporary immersion | Submersible equipment | O-ring seals, pressure testing |
DFM Rules for Blechgehäuse
- Bend radius: Minimum inside radius = Materialstärke. For aluminum, use 1.5× thickness to prevent cracking.
- Hole-to-edge: ≥1.5× Materialstärke from hole center to edge. Closer spacing risks tear-out.
- Corner reliefs: Add bend relief notches (≥0.5mm width) at corners to prevent material tearing during Biegen.
- Weld seams: For IP65+ enclosures, specify continuous fillet welds on all external seams. Tack welds are insufficient.
- Mounting bosses: Use PEM inserts or weld nuts for threaded mounts. Avoid Gewindeschneiden into thin (<2mm) sheet metal.
Enclosure Manufacturing Verfahren at BravoFabs
Our enclosure Produktion follows a 5-step process: 1) Laserschneiden — flat pattern from your STEP/DXF file with ±0,1mm accuracy. 2) CNC Biegen — press brake forms all bends in sequence per bend order drawing. 3) Schweißen — TIG/MIG-Schweißen of corners, mounting brackets, and stiffeners. 4) Oberflächeing — Pulverbeschichtung (80+ RAL colors), Anodisieren (clear or colored), or wet Lackieren. 5) Montage — install gaskets, hinges, latches, and test for IP rating compliance.
Verwandte Dienstleistungen erkunden
- Maßgefertigte Metallgehäuse — Our dedicated enclosure manufacturing service in Dongguan, China.
- Blechbearbeitung — Laserschneiden, CNC Biegen, Schweißen & finishing for all industrial Anwendungs.
- CNC-Bearbeitung Service — Präzision machined enclosure components, heat sinks, and mounting plates.
- Kontakt us with your enclosure drawing for a free DFM review and quote within 24 hours.
Related Service: Need a custom enclosure manufactured? See our Kundenspezifisches Blechgehäuse service — Laserschneiden, CNC Biegen, and Schweißen in Dongguan, China.
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