304 Stainless Steel Plate Laser Cutting Sandblasting Bending Medical Spare Parts
304 Stainless Steel Plate Laser Cutting Sandblasting Bending Medical Spare Parts
Product Description
304 Stainless Steel Sheet Laser Cutting for Medical Spare Parts with Sandblasting and Bending is a specialized, full-cycle precision manufacturing service dedicated to producing high-integrity components for the medical equipment and device industry. We start with certified 304 stainless steel sheets, use high-precision fiber laser cutting to achieve complex, burr-free profiles, apply a controlled medical-grade sandblasting for a uniform, cleanable surface finish, and perform accurate CNC bending to form three-dimensional parts. This integrated process ensures components meet stringent requirements for dimensional accuracy, surface cleanliness, corrosion resistance, and durability, making them ideal for non-implantable medical hardware, instrument housings, brackets, and structural supports.
Product Processing
Our medical-focused manufacturing process emphasizes precision, cleanliness, and traceability at every stage.
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Controlled Material Handling & Programming: Certified 304 stainless steel sheets (with full material traceability) are handled in a clean environment. CAD files are programmed with precision toolpaths optimized for medical part accuracy and material conservation.
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High-Precision Medical Laser Cutting: A high-power fiber laser with fine-focused beam and high-pressure assist gas cuts the components. This ensures minimal heat input, extremely fine kerf widths, and edges with negligible thermal distortion or oxidation, critical for fit and function.
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Post-Cut Cleaning & Deburring: Parts undergo an initial cleaning to remove cutting residues. Edges are meticulously deburred using medical-approved methods (vibratory, electrochemical, or manual) to achieve smooth, safe, and particulate-free edges.
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Medical-Grade Sandblasting (Passivation Preparation): Components are sandblasted in a controlled booth using designated, contaminant-free media (e.g., high-purity aluminum oxide or glass bead). This achieves a consistent, matte finish that enhances cleanability, removes all surface impurities, and provides an ideal surface for subsequent passivation.
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Chemical Passivation: Following sandblasting, parts undergo a rigorous chemical passivation process per ASTM A967 (typically nitric or citric acid) to remove free iron and maximize the natural corrosion resistance of the 304 stainless steel surface.
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Precision CNC Bending: Passivated parts are bent on a CNC press brake with clean, dedicated tooling. Bending sequences and tooling are designed to avoid marring the finished surface. Protective films may be used.
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Final Cleaning, Inspection & Packaging: A final ultrasonic or precision cleaning ensures no residues. 100% dimensional inspection (CMM or gauge) and visual quality checks are performed. Parts are packaged in clean, sealed bags within an ISO Class 7 (or better) cleanroom environment.
Product Applications
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Medical Device Housings & Enclosures: Covers, panels, and chassis for diagnostic equipment, monitors, pumps, and analyzers.
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Instrumentation Components: Brackets, mounting plates, supports, and frames for surgical lights, microscopes, and lab instruments.
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Hospital & Laboratory Furniture: Structural parts for carts, workstations, shelving, and cabinet hardware.
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Sterilization & Processing Trays: Components for assembly or holding trays that undergo repeated sterilization cycles.
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Non-Implantable Surgical Tool Parts: Guards, handles, and adjustable components for reusable surgical instruments.
Product Technical Parameters (Detailed Table)
| Category | Parameter | Specification / Details |
|---|---|---|
| Material | Primary Grade | 304 Stainless Steel, Medical/Surgical Grade (ASTM A240) |
| Certification | Full traceability with Mill Test Certificate (MTC) per EN 10204 3.1. RoHS compliant. | |
| Sheet Specifications | Thickness Range | 0.5 mm to 8.0 mm (Standard service). Up to 12 mm for laser cutting on request. |
| Sheet Size | Standard: 1000x2000mm, 1250x2500mm, 1500x3000mm. Custom sizes available. | |
| Laser Cutting | Technology | High-Precision Fiber Laser with CNC control. |
| Dimensional Accuracy | ± 0.05 mm to ± 0.1 mm (Part dependent) | |
| Positional Tolerance | ± 0.03 mm | |
| Minimum Feature Size | 0.2 mm (e.g., small holes, narrow slots) | |
| Edge Quality (As-Cut) | Smooth, perpendicular, minimal dross. Ra (cut edge) < 6.3 µm. | |
| Surface Finish (Post-Processing) | Sandblasting Media | High-purity white aluminum oxide (standard) or glass bead. |
| Surface Texture | Uniform matte/satin finish. | |
| Surface Roughness (Ra) | 1.6 µm to 3.2 µm (Standard medical finish). Customizable. | |
| Passivation Standard | ASTM A967, Method (Nitric Acid 1, 2, or 3, or Citric Acid) with documentation. | |
| CNC Bending | Bending Capacity | Up to 3000 mm length, thickness up to 6 mm (standard). |
| Bend Angle Tolerance | ± 0.5° | |
| Minimum Inside Bend Radius (R) | Typically 1.0T (Material Thickness). Can achieve 0.6T with tooling. | |
| Bend-to-Hole/Feature Tolerance | ± 0.1 mm to ± 0.2 mm | |
| Cleanliness & Biocompatibility | Post-Process Cleanliness | Cleaned to meet ISO 14644-1 particle count standards (e.g., Class 7). |
| Biocompatibility (Surface) | Passivated surface is suitable for prolonged human contact per ISO 10993-5/-10. | |
| Quality Assurance | Inspection Equipment | CMM, Optical Comparator, Surface Roughness Tester, Passivation test kits. |
| Documentation Package | Mandatory: Certificate of Conformity (CoC), Dimensional Report, MTC, Passivation Report. Optional: First Article Inspection (FAI) Report per ISO 13485. | |
| Quality System | Manufactured under an ISO 13485:2016 compliant quality management system. | |
| Packaging & Delivery | Packaging Standard | Individually bagged in clean polyethylene, with desiccant if required. Packed in sturdy boxes. Cleanroom packaging available. |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.