Grade 316 Stainless Steel Ring, ±0.005mm Tolerance, for Laboratory Equipment, Factory Direct
Product Spotlights
Dongguan HonHo Jewelry Co., Ltd., a professional manufacturer established in 2010, proudly presents our Grade 316 Stainless Steel Ring with an ultra-precise tolerance of ±0.005mm. Designed specifically for laboratory equipment, this ring combines superior corrosion resistance with exceptional dimensional accuracy. As a factory-direct supplier with an annual export value of US$2.5–5 million, we ensure competitive pricing without compromising quality. Our ISO9001-certified production process guarantees consistent performance, making this ring a reliable component for critical lab applications.
Key Features & Technical Specifications
- Material: Grade 316 stainless steel – excellent resistance to chemicals, acids, and saline environments, ideal for laboratory and medical settings.
- Precision Tolerance: ±0.005mm ensures tight fit and reliable function in sensitive instruments, reducing assembly errors.
- Durable Construction: High tensile strength and hardness withstand repeated sterilization, vibration, and mechanical stress.
- Customizable Dimensions: Inner diameter, outer diameter, thickness – all can be tailored to your specific equipment requirements.
- Surface Options: Available in as-machined, polished, or electropolished finish for enhanced cleanliness and aesthetics.
| Parameter | Value / Option |
| Standard Tolerance | ±0.005mm (customizable) |
| Available Sizes (ID × OD × H) | As per customer drawing |
| Surface Finish Ra | ≤0.8μm (optional finer) |
| Hardness (HRC) | Approx. 20-25 (annealed), can be hardened on request |
| Packing | Individually wrapped, anti-rust oil, option for cleanroom packaging |
Why Choose Our 316 Stainless Steel Ring for Laboratory Equipment?
- Enhanced Corrosion Resistance: The molybdenum content in 316 steel provides superior protection against chlorides, alkalis, and lab chemicals – essential for autoclaving and cleaning agents.
- Ultra-Precise Fit: The ±0.005mm tolerance minimizes play between mating parts, improving instrument accuracy and longevity.
- Factory Direct Pricing: By manufacturing the rings in our 3,000–5,000㎡ facility, we eliminate middlemen, passing cost savings directly to you.
- Rigorous Quality Control: Every ring undergoes dimensional inspection using CMMs and surface finish testers to meet ISO9001 standards.
- Fast Lead Times: With 51–100 skilled workers, we can fulfill orders of 1,000–100,000 pieces within 15–25 working days.
- Global Shipping: Conveniently shipped from Shenzhen, Dongguan, or Guangzhou ports to major markets worldwide (North America, Europe, Asia, etc.).
Trust Us as Your Reliable Partner
Dongguan HonHo Jewelry Co., Ltd. has been serving diverse industries since 2010, with an annual export value of US$2.5–5 million to markets across North America, South America, Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. Our 3,000–5,000㎡ factory houses 51–100 dedicated employees, ensuring every ring meets your exact specifications. Certified under ISO9001, we maintain a robust quality management system. Whether you need a small prototype batch or large-volume production, our engineering team is ready to support your project. Contact us today to discuss your custom ring requirements and experience the HonHo advantage – precision, durability, and factory-direct value.
Frequently Asked Questions (FAQ)
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Q: Is the ±0.005mm tolerance guaranteed for every ring?
A: Yes. Our quality control process uses coordinate measuring machines (CMM) to inspect random samples from each batch. For critical dimensions, 100% inspection can be arranged upon request. -
Q: Can I order rings with different inner/outer diameters?
A: Absolutely. We produce custom sizes based on your drawings or samples. Simply provide your desired dimensions, and we'll confirm feasibility. -
Q: What surface finish options are available for laboratory use?
A: Common options include as-machined (Ra ≤1.6μm), polished (Ra ≤0.8μm), and electropolished (Ra ≤0.4μm) for enhanced cleanability. Passivation is also available. -
Q: Do you offer any certificates of material and inspection?
A: Yes. We can provide material test certificates (MTC) confirming Grade 316 composition, dimensional inspection reports, and a certificate of conformance. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is typically 500 pieces. For custom dimensions, MOQ starts at 1,000 pieces. Smaller quantities may be accommodated for samples – please inquire. -
Q: How do you ensure the rings are rust-free during shipping?
A: Each ring is coated with anti-rust oil (or VCI paper) and packed in sealed plastic bags. For long-distance sea freight, we add desiccant and vacuum packaging if needed. -
Q: Are these rings suitable for high-temperature laboratory environments?
A: Grade 316 stainless steel maintains good mechanical properties up to 800°C (1472°F) in continuous service, and up to 900°C (1652°F) for intermittent use. However, prolonged exposure near the upper limit may affect corrosion resistance – please consult our engineers for specific applications. -
Q: Can you produce rings with secondary operations like threading or grooving?
A: Yes. Our CNC turning and milling capabilities allow us to add threads, grooves, holes, or other features per your design. Tell us your requirements.
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