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Help CenterStainless Steel Ring 0.3mm Thickness Spacer Bead 5mm-30mm ID Precision Machined Parts Supplier
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Dongguan HonHo Jewelry Co., Ltd. is proud to offer high-quality Stainless Steel Rings with a precise 0.3mm thickness, designed as spacer beads or precision machined parts. With over a decade of manufacturing experience since 2010, we specialize in producing custom ID rings ranging from 5mm to 30mm, ensuring exceptional accuracy and consistency. Our ISO9001-certified facility in Dongguan, China, equipped with advanced CNC machinery, guarantees that every ring meets strict dimensional standards, making them ideal for industrial assembly, jewelry, electronics, and decorative applications.
Product Features & Technical Specifications
- Ultra-thin 0.3mm thickness – perfect for tight tolerance spacer applications.
- Wide inner diameter range: 5mm to 30mm, available upon request for custom sizes.
- Premium material: Made from corrosion-resistant stainless steel (304/316 optional).
- Precision machining: Achieves ±0.02mm tolerance for consistent quality.
- Multiple surface finishes: polished, matte, or as specified by client.
- Versatile uses: as spacer beads, axial adjustment washers, or decorative rings.
- RoHS compliant and free from harmful substances.
| Parameter | Value |
|---|---|
| Thickness | 0.3 mm |
| Inner Diameter | 5 – 30 mm (customizable) |
| Outer Diameter | Custom based on ID + desired wall thickness |
| Material Options | SS304, SS316, other alloys upon request |
| Tolerance | ±0.02 mm typical |
| Surface Roughness | Ra ≤ 0.8 µm (polished finish) |
| Packaging | Bulk, reel, or custom packaging |
These precision spacer beads are manufactured using state-of-the-art CNC turning and grinding processes, ensuring burr-free edges and uniform dimensions. The 0.3mm thickness offers a low-profile solution for separating components without adding bulk. Whether used in watchmaking, medical devices, or instrument clusters, each ring undergoes strict quality checks to guarantee reliability.
Our factory spans 3,000–5,000 square meters with a skilled team of 51–100 employees, enabling us to handle both small prototype orders and large-volume production runs. With an annual export value of US$2.5–5 million, we serve clients across North America, South America, Europe, Asia, and Africa. We ship from Shenzhen, Dongguan, or Guangzhou ports for fast global delivery.
Why choose Dongguan HonHo? We combine decade-long expertise, ISO9001-certified quality management, and a dedication to precision engineering. Our stainless steel rings are tested for hardness, corrosion resistance, and dimensional accuracy before shipment. Customer satisfaction is our priority – we offer free samples for evaluation, flexible customization, and responsive technical support.
Frequently Asked Questions
Q1: Can you provide rings with inner diameter less than 5mm?
A: Yes, we can manufacture custom IDs smaller than 5mm. Please contact us with your specific dimensions.
Q2: What material hardness options are available?
A: Standard stainless steel rings are annealed or hardened as required. We can also supply 316L for enhanced corrosion resistance.
Q3: Do you offer surface coating like gold plating?
A: Absolutely. We can provide various finishes, including PVD coating, electroplating, and passivation. Discuss your needs with our team.
Q4: How do you ensure the 0.3mm thickness tolerance?
A: We use high-precision CNC lathes and laser measurement tools. Every batch is sampled and inspected with micrometers.
Q5: What is the minimum order quantity (MOQ)?
A: MOQ depends on size and complexity. For standard rings, MOQ can be as low as 1000 pieces. Custom orders are evaluated individually.
Q6: Can I get a sample before placing a large order?
A: Yes, we offer free samples for standard sizes (you pay shipping). Custom samples are available at cost.
Q7: What is your typical lead time?
A: For stock sizes, 3–5 working days. For custom orders, 7–15 working days depending on quantity.
Q8: Do you have certificates for the material?
A: We provide material test reports (MTR) for each batch. Our factory is ISO9001 certified ensuring traceability.
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