Custom Metal Components Manufacturing
Solution
End-to-end OEM metal component manufacturing — integrating sheet metal laser cutting, precision CNC machining, certified welding, and custom surface finishing to deliver print-ready, high-consistency metal parts.
One-Stop Custom Metal Component Manufacturing
Sourcing custom metal parts across multiple isolated suppliers often leads to tolerance mismatch, communication gaps, inconsistent quality, and unexpected delivery delays. Conwhole eliminates these risks by providing an integrated single-source manufacturing solution for custom metal components.
From initial 3D CAD analysis and DFM guidance to raw material sourcing, multi-process fabrication, sub-assembly, and final surface treatment, we control every manufacturing step under rigorous ISO quality management systems.
Key Takeaways
- Multi-Process Integration: Combines Laser Sheet Cutting, CNC Machining, Tube Fabrication, and Welding seamlessly.
- Strict Tolerance Assurance: Precision machining down to ±0.01 mm with CMM dimensional reports.
- Full Material Traceability: Complete Mill Test Reports (MTR / EN 10204 3.1) for all alloys.
- Turnkey Sub-Assembly: Hardware insertion, press-fit fasteners, and finished sub-assemblies line-ready.
Integrated Multi-Process Fabrication
Conwhole integrates multiple metalworking processes into a single streamlined workflow. Rather than dividing your PO among separate sheet metal shops, CNC machine centers, and welding contractors, our engineering team manages the complete process chain to guarantee perfect fitting and zero inter-process error.
| Parameter / Capability | Technical Specification |
|---|---|
| Combined Processes | Fiber Laser Cutting, CNC Milling & Turning, Tube Laser, Press Brake Bending, TIG/MIG Welding, Metal Spinning |
| Primary Materials | Stainless Steel (304, 316/316L, 2205 Duplex), Aluminum Alloys (5083, 6061-T6, 7075), Carbon Steel (Q235, Q355, C45) |
| Dimension Limits | Sheet: up to 4000 × 2000 mm; CNC: up to 1500 × 800 × 600 mm; Tube: Ø12–150 mm |
| Secondary Operations | PEM stud/nut insertion, tapping, countersinking, riveting, sub-assembly |
Precision Engineering & DFM Optimization
Every custom metal part order undergoes a detailed Design for Manufacturability (DFM) review by our senior mechanical engineers before production begins. We identify tight radius issues, unnecessary weld seams, and over-toleranced callouts to optimize production efficiency and lower piece-part cost.
| Parameter / Capability | Technical Specification |
|---|---|
| Supported Formats | STEP, IGES, SolidWorks (.SLDPRT), DXF, DWG, PDF drawings |
| DFM Feedback | Hole-to-bend distance checks, minimum bend radii, tooling clearance, weld joint accessibility |
| Tolerance Class | Machining: ISO 2768-m/f (down to ±0.01 mm); Sheet Metal Fabrication: ISO 2768-m |
| Prototyping Speed | Prototype turnaround within 5 to 7 business days |
Rigorous Quality Assurance & Inspection
Quality is built into every phase of production. We maintain strict lot traceability and conduct step-by-step inspections—from incoming raw material validation to in-process dimensional audits and final CMM verification.
| Parameter / Capability | Technical Specification |
|---|---|
| Inspection Equipment | CMM (Hexagon/Zeiss), Optical Profile Projector, Digital Calipers, Roughness Testers, Coating Thickness Gauges |
| Documentation | Material Test Reports (MTR / EN 10204 3.1), First Article Inspection (FAI), CMM Inspection Reports |
| Weld Quality | Visual Inspection (VT), Penetrant Testing (PT), AWS D1.1 / ISO 5817 Level B weld standards |
| Compliance | RoHS & REACH compliant raw materials with full MTR traceability |
Surface Finishing & Final Assembly
We offer a complete range of industrial surface treatments to protect custom metal components against corrosion, wear, and environmental stress while providing the exact visual finish requested by your brand.
| Parameter / Capability | Technical Specification |
|---|---|
| Finishing Options | Powder Coating, Anodizing (Type II/III), Electroplating (Zinc, Nickel, Chrome), Electropolishing, Passivation |
| Mechanical Finish | Mirror Polish (#8 / 800 grit), Satin Brushed (240/320 grit), Bead Blasting |
| Corrosion Testing | Neutral Salt Spray Testing (NSS) up to 1000+ hours according to ASTM B117 |
| Assembly Support | Hardware installation, gasket/seal fitting, custom protective packaging |
Typical Custom Metal Components & Applications
| Category | Representative Custom Components | Manufacturing Processes | Primary Materials |
|---|---|---|---|
| Industrial Machinery | Custom brackets, mounting plates, gear housings, motor bases | Laser cutting, CNC milling, TIG welding | Carbon Steel Q355, SS304 |
| Automotive & Transport | Chassis brackets, battery enclosures, suspension arms | Sheet metal bending, robotic MIG welding | Aluminum 6061, High-Strength Steel |
| Construction & Building | Structural connectors, facade anchors, custom handrail posts | Heavy plate laser, press brake, hot-dip galv | Stainless Steel 316, Galvanized Steel |
| Electronics & Enclosures | Server rack chassis, outdoor IP65 cabinets, aluminum heat sinks | CNC turret punching, bending, anodizing | Aluminum 5052-H32, SS304 |
| Medical & Marine | Instrument frames, 316L polished deck hardware, mounting flanges | 5-axis CNC, mirror polishing, passivation | Stainless Steel 316L, Duplex 2205 |
| Furniture & Commercial | Modular table frames, display fixtures, custom metal legs | Tube laser cutting, bending, powder coating | Steel tubing, Aluminum extrusion |
Why Choose Conwhole for Custom Metal Components?
Full In-House Manufacturing Control
We operate advanced laser cutters, CNC machining centers, press brakes, and welding cells in our own factory, ensuring complete process control, tight quality enforcement, and predictable lead times.
Engineering DFM & Rapid Prototyping
Our experienced mechanical engineers review your 3D models to eliminate manufacturing flaws and reduce unit costs. Prototypes are produced in as fast as 5 business days for rapid validation.
Strict CMM & Material Traceability
Every production lot is verified with full dimensional CMM inspection reports, material mill test certificates (EN 10204 3.1), and surface finish measurements before shipment.
Flexible Volume & Turnkey Delivery
From low-volume high-mix runs (50–500 pcs) to high-volume OEM mass production, we offer scalable manufacturing with turnkey sub-assembly, custom packaging, and door-to-door global logistics.
Frequently Asked Questions — Custom Metal Components
Q1: What drawing file formats do you accept for custom metal component quotes?
We accept 3D CAD files in STEP (.stp), IGES (.igs), and SolidWorks (.sldprt) formats, as well as 2D vector files in DXF or DWG format. PDF drawings with explicit dimensional tolerances, material callouts, and surface finish notes are recommended for quotation.
Q2: What is your minimum order quantity (MOQ) for custom metal parts?
We have no rigid minimum order quantity. We support prototype orders starting from a single piece (1 pc) up to low-volume production runs (50–500 pcs) and full-scale OEM mass production runs exceeding 10,000 pcs per batch.
Q3: How do you handle tolerance stack-up across combined sheet metal and CNC machined assemblies?
Our engineering team performs tolerance stack-up analysis during DFM review. CNC machined features (±0.01 mm) are strategically designated as reference datums, ensuring smooth alignment when welded or bolted to sheet metal sub-structures (±0.2 mm).
Q4: Do you provide Material Mill Test Reports (MTR) with shipments?
Yes. All raw materials are sourced directly from certified steel and aluminum mills. Mill Test Reports (MTR / EN 10204 3.1) showing chemical composition and mechanical properties are archived per lot and provided with every delivery.
Q5: Can Conwhole perform secondary sub-assembly for custom metal hardware?
Yes. We offer turnkey sub-assembly services including press-fit hardware insertion (PEM studs/nuts), riveting, helicoil thread inserts, gasket fitting, and sub-system bolting so components arrive ready for direct production line integration.
Q6: What surface treatments can you apply to custom aluminum and stainless steel parts?
For aluminum, we offer Type II/III anodizing, powder coating, and bead blasting. For stainless steel, we provide electropolishing, ASTM A380 passivation, mirror polishing, satin brushing, and protective PVD or zinc plating.
Q7: How fast can I receive a quote for custom metal parts?
Once you submit your CAD files and technical drawings via our request form, our engineering and estimating team reviews your requirements and provides a detailed quotation within 24 business hours.
Q8: How do you protect client intellectual property and custom drawing designs?
We take IP protection extremely seriously. We sign strict Non-Disclosure Agreements (NDAs) prior to receiving proprietary drawing files. All CAD data is stored on secure, encrypted internal servers accessible only by authorized engineering staff.