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Help CenterPrecision CNC Stainless Steel Ring 304 Grade 12mm ID 20mm OD for Mechanical Assembly Bulk Supply
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Welcome to Dongguan HonHo Jewelry Co., Ltd. As a specialized manufacturer with over a decade of precision machining experience, we present our Precision CNC Stainless Steel Ring 304 Grade 12mm ID 20mm OD for Mechanical Assembly Bulk Supply. These rings are crafted from high-quality 304 stainless steel, offering excellent corrosion resistance, strength, and dimensional stability for demanding industrial applications. With our advanced CNC equipment and strict quality control, we ensure each ring meets exacting specifications, making them ideal for mechanical assemblies, spacers, bushings, and positioning components.
Our factory, spanning 3,000-5,000 square meters, is equipped with state-of-the-art CNC lathes and milling machines, enabling us to produce rings with tight tolerances and consistent quality in high volumes. We understand the critical role these components play in your machinery, and we are committed to delivering products that enhance performance and reliability.
Key Product Features & Technical Specifications
- Material Excellence: 304 stainless steel (18/8) ensures outstanding resistance to oxidation, corrosion, and wear, suitable for harsh environments.
- Precision CNC Machining: All rings are produced using CNC turning and milling processes, achieving tight tolerances of ±0.01mm to ±0.05mm as required.
- Standard Dimensions (ID 12mm, OD 20mm): This ring is designed for common shafts and housing sizes; custom thicknesses are available upon request.
- Versatile Applications: Perfect for mechanical assemblies, automotive components, industrial machinery, electronics enclosures, and fluid handling systems.
- Bulk Supply Capability: Our production capacity supports large-volume orders with consistent quality, reducing your procurement costs.
- Surface Finishing Options: Choose from polished, brushed, or matte finishes; passivation or electropolishing available for enhanced corrosion resistance.
- ISO9001 Certified Quality: Our management system ensures traceability, inspection records, and continuous improvement.
Technical Parameters (Standard Specification)
| Parameter | Value |
|---|---|
| Material Grade | SS304 (AISI 304, 0Cr18Ni9) |
| Inner Diameter (ID) | 12 mm (±0.02 mm standard) |
| Outer Diameter (OD) | 20 mm (±0.02 mm standard) |
| Thickness (Height) | Customizable (commonly 2mm, 3mm, 5mm; up to 10mm) |
| Surface Roughness | Ra ≤ 0.8 μm (as machined); Ra ≤ 0.4 μm upon request |
| Hardness | HRB 80-90 (annealed); work-hardening possible |
| Packaging | Bulk in polybags, cartons, or customized kits |
Benefits for Your Mechanical Assembly
- Enhanced Reliability: Precision-machined rings ensure accurate spacing and alignment, reducing vibration and wear in rotating assemblies.
- Cost Efficiency: Bulk supply from our factory directly lowers per-unit cost and lead time, ideal for OEMs and large-scale projects.
- Long Service Life: 304 stainless steel resists rust and corrosion, extending component lifespan even in humid or chemical-exposed environments.
- Easy Installation: Consistent dimensions allow for quick assembly without additional rework.
- Customization Flexibility: We accommodate custom IDs, ODs, thicknesses, chamfers, and groove features to match your specific design.
These rings serve as essential spacers, washers, or bushings in gearboxes, pumps, motors, conveyors, and medical devices. Their high dimensional accuracy ensures consistent performance across thousands of units.
Why Choose Dongguan HonHo Jewelry Co., Ltd.?
Founded in 2010, we have grown into a reliable manufacturer with 3,000-5,000 square meters of factory space and a dedicated team of 51-100 skilled employees. Our annual export value exceeds US$2.5 Million to US$5 Million, serving markets across North America, South America, Europe, Asia, Africa, and Oceania. We are proud to hold ISO9001 certification, reflecting our commitment to quality management and customer satisfaction. Our shipping flexibility includes ports in Shenzhen, Dongguan, and Guangzhou, ensuring timely delivery worldwide.
By partnering with us, you benefit from our extensive experience in precision metal fabrication, rigorous inspection processes (including dimensional verification, surface finish checks, and material certifications), and responsive customer service. Whether you need a sample for prototyping or a container-load of rings for production, we are ready to support your business.
Contact us today for a quote or to discuss your custom requirements. Our team will provide you with competitive pricing and professional technical advice.
Frequently Asked Questions (FAQ)
Q1: What is the standard tolerance for these rings?
A: Our standard tolerance for ID and OD is ±0.02 mm. Tighter tolerances like ±0.01 mm are available upon request and may involve additional cost.
Q2: Can you provide samples before bulk order?
A: Yes, we offer samples for evaluation. Sample cost and shipping are typically charged, but we can deduct the sample cost from the bulk order if placed within a specified period.
Q3: What is the minimum order quantity (MOQ) for bulk supply?
A: MOQ depends on size and complexity. For standard 12mm ID x 20mm OD rings, MOQ is usually 1,000 pieces. We can discuss lower quantities for initial orders.
Q4: Are these rings suitable for food-grade applications?
A: 304 stainless steel is often considered food-safe. However, for direct food contact, surface finish and passivation should meet specific regulations. We can provide passivation or electropolishing upon request.
Q5: How do you ensure consistent quality across large volumes?
A: We employ CNC machines with automated tool compensation and in-process gauging. Every batch undergoes first-piece inspection and random sampling per ISO9001 procedures. Dimensional reports are available upon request.
Q6: What are the available surface treatments?
A: Standard as-machined finish (slightly rough). Options include: mechanical polishing, brushed (satin), matte (bead blasting), and passivation (to enhance corrosion resistance).
Q7: Can you custom make rings with different IDs, ODs, or thicknesses?
A: Absolutely. We specialize in custom precision rings. Provide your drawing or specifications, and we can produce non-standard sizes with the same quality standards.
Q8: What is the typical lead time for bulk orders?
A: For standard rings in stock, lead time is 5-7 days. For custom or large orders, typical lead time is 15-25 days depending on quantity and complexity.
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