ISO 9001:2015 Certified | Dongguan, China
Industrial Equipment Enclosures Manufacturer
Rapidsheetfab is an engineering-responsive, quality-controlled manufacturer of custom sheet metal enclosures, cabinets, chassis, and welded assemblies for industrial OEMs. From one-piece prototypes and NPI builds to low-volume repeat production, we deliver enclosure projects with clear DFM support, reliable quality, and export-ready documentation.
3,500 m²
Facility
MOQ 1
Piece
3–12
Days Prototype
2015
Founded
What We Manufacture
Custom sheet metal enclosures and assemblies built to your drawings and specifications:
- Floor-standing cabinets and frames
- Wall-mount control boxes and junction boxes
- Instrument and electronics enclosures
- 19" rackmount chassis (1U–6U and custom)
- HMI panels, operator consoles, kiosks
- Power supply, battery, and inverter enclosures
- Automation/robot controller housings
- HVAC and filtration housings, plenums, covers
- Brackets, panels, doors, and sub-assemblies
Manufacturing Capabilities
Cutting
Five fiber lasers up to 2000 × 4000 mm sheets. Max thickness: stainless steel up to 20 mm, carbon steel up to 25 mm, aluminum up to 16 mm.
Forming & Punching
Seven CNC press brakes up to 230T / 3000 mm. CNC punching for precision holes, louvers, embosses, and formed features.
Welding & Hardware
TIG, MIG/MAG, laser welding, and spot welding. PEM hardware insertion, riveting, M2–M12 tapping.
Finishing & Assembly
Deburring, grinding, brushing, basic polishing, and assembly. Enclosure size envelope: single-piece bends up to 3000 mm; larger cabinets assembled from multiple panels and frames.
Materials & Finishes
Available Materials
- Stainless Steel: SUS304, SUS316, SUS430
- Steel: SPCC/CRS, Q235/Q355, SGCC/SECC
- Aluminum: 5052, 6061, 5754
- Copper & Brass: C1100/T2, H62
- Thickness Range: 0.5–12 mm (enclosures commonly 1.0–3.0 mm)
Surface Finishing (via Qualified Partners)
- Powder coating, anodizing, plating, passivation
- Sandblasting, electropolishing
- Screen printing and laser marking
Documentation such as coating reports can be provided upon request.
Quality & Documentation
ISO 9001:2015 Certified Quality System
Gated inspection flow: IQC → FAI → IPQC → FQC → OQC
Inspection resources: CMM, 2.5D vision systems, height gauges, and standard inspection tools.
Available documents: First Article Inspection (FAI), dimensional reports, material certificates, RoHS/REACH, and coating reports.
Typical Process Capabilities
- Laser cutting: ±0.10 mm
- Bending: ±0.20–0.30 mm
- Holes: ±0.10–0.20 mm
Final tolerances and cosmetic criteria are confirmed during RFQ/DFM review against your drawings and critical-to-quality (CTQ) features.
Engineering-Responsive Process
We are not a commodity cutting shop. Our team engages early to reduce risk and lead time.
01
RFQ & Engineering Review
Engineering review with DFM feedback on your drawings and specifications.
02
Spec Confirmation
Confirmed tolerances, materials, finish, and cosmetic standards before production.
03
CAM & Nesting
Efficient programming and material nesting for optimal yield.
04
Fabrication
Cutting, forming, hardware insertion, and welding performed in-house.
05
Finishing & Assembly
Surface finishing via qualified partners, followed by final assembly.
06
Inspection & Export
Full inspection, careful packaging, and export shipment preparation.
Prototype-to-Production Continuity
Prototypes & NPI
MOQ 1 | 3–12 working days
Small Batches
10–15 working days typical
Regular Production
15–25 working days typical
Revision control, repeatability plans, and fixture/tooling strategies carry your enclosure smoothly from prototype into low-volume repeat or scheduled builds.
Design Guide Snapshot for Industrial Enclosures
Practical DFM guidance we apply when reviewing your drawings. We will provide tailored suggestions for your design intent and target cost.
Bends
- Preferred internal bend radius: ≥ 1.0 × t for aluminum and mild steel; ≥ 1.2–1.5 × t for stainless steel
- Minimum flange width: ≥ 3 × t + bend radius
Holes & Features
- Hole-to-edge: ≥ 1.5 × t (more for stainless and near bends)
- Hole-to-bend line: ≥ 2.0 × t + bend radius
- Use punched or formed louvers/embosses for airflow and stiffness
Hardware
- Specify PEM type/size/material; provide keep-out zones around studs/standoffs
- Mask threads before coating; call out torque/retention requirements
Welding
- Indicate intermittent vs. continuous welds; define cosmetic sides
- Provide weld symbols and access for torch/nozzle where needed
Finishing
- Typical powder coat thickness: 60–80 µm; allow clearance on mating joints
- Define cosmetic class: A (external), B (semi-visible), C (non-cosmetic)
- Call out grain direction for brushed finishes on visible faces
Assembly & Sealing
- Identify gasket types and channel dimensions (if required)
- Define hinge/lock cutouts and reinforcement where needed
Industries Served & Why OEMs Choose Us
Industries Served
- Industrial OEMs and equipment manufacturers
- Automation and robotics
- Electronics and instruments
- Medical and laboratory equipment
- Energy and power systems
- Machinery and process equipment
Why OEMs Choose Rapidsheetfab
- Fast, clear RFQ responses with engineering review and DFM
- Reliable dimensional and cosmetic quality backed by ISO 9001:2015
- One-stop, multi-process builds with welding, hardware, finishing, and assembly
- Prototype-to-production continuity for repeatability and scale
- Export-ready communication and documentation
RFQ Checklist
For the fastest and most accurate quote, include:
- Drawings/files: PDF + 3D (STEP/IGES/SolidWorks) and DXF for flat patterns if available
- Material and thickness per part
- Quantities: prototype and production
- Surface finish and color (e.g., RAL/Pantone), cosmetic class
- Critical dimensions/tolerances and GD&T where applicable
- Hardware list (PEM types), weld notes/symbols, assembly BOM if required
- Inspection/documentation needs (FAI, dimensional report, material certs, RoHS/REACH)
- Packaging, labeling, and shipping requirements
- Target delivery timeline
Email your RFQ with attachments, or share via a secure link. Our engineering team will respond with questions or DFM notes as needed.
Get a Quote
Ready to build your next enclosure with an Industrial Equipment Enclosures Manufacturer that understands OEM standards? Send your RFQ pack and target timeline, and our engineering team will provide DFM feedback and a firm quotation.
About Rapidsheetfab
- Established 2015 in Dongguan, Guangdong, China
- Facility: 3,500 m² with laser cutting, press brakes, punching, welding, hardware, and assembly
- ISO 9001:2015 certified quality system
- Direct export service since 2019 to the United States, Canada, Germany, the United Kingdom, the Netherlands, Sweden, Australia, Singapore, and more
Frequently Asked Questions
Can you provide IP/NEMA-rated enclosures?
We manufacture to your design and specification, including gaskets, seals, and drainage features. If certification or testing is required, please specify the standard and acceptance criteria in your RFQ.
Do you offer custom colors and textures?
Yes. Powder coating and other finishes are available through qualified partners. Provide RAL/Pantone and gloss/texture requirements.
What inspection reports can you supply?
FAI, dimensional reports, material certificates, and RoHS/REACH documents are available. Coating reports are available upon request.
What is your typical enclosure tolerance?
Tolerances are drawing- and process-dependent. Typical capabilities are ±0.10 mm for laser cutting, ±0.20–0.30 mm for bends, and ±0.10–0.20 mm for holes. We will align to your CTQs during DFM.