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✦ Professional Jeweler & Lapidary Series
Industrial Wool Felt Ring Buffs on Wooden Mandrel
Engineered for inside ring finishing, curved metal deburring, and high-precision mold mirror polishing. Crafted from 100% compressed pure natural wool mounted seamlessly onto dynamic-balanced hardwood cores for chatter-free rotation.
Master Jeweler Workshop & Studio Presentation
Precision Mirror-Finishing for Precious Metals & Curved Workpieces
Authentic Workshop Craftsmanship
Designed for master goldsmiths and silversmiths. Delivers uniform radial pressure on delicate ring shanks, bands, and bezels.
Cylindrical & Tapered Options
Multiple stepped and tapered profiles fit ring sizes US 4 to 14, hollowware inner walls, and tight concave radiuses.
Step 10 Critical Polishing Stage
Integrated into professional jewelry manufacturing pipelines from casting and filing to final electroplating and QA.
Dimensional Standards & Engineering Structure
Precision CNC Lathe Turning with Dynamic Balance Inspection
3-Inch & 4-Inch Standard Sizing
◆ Small (3 Inch): Felt 75mm x 16mm, Wood 37mm.
◆ Middle (3 Inch): Felt 75mm x 19mm, Wood 37mm.
◆ Large (3 Inch): Felt 75mm x 20mm, Wood 37mm.
◆ Extra Large (4 Inch): Felt 95mm x 22mm, Wood 39mm.
3-Tier Industrial Architecture
1. 100% Compressed Wool Felt: High density, lint-free, scratch-free.
2. Solid Hardwood Core: Stable vibration dampening under heavy load.
3. Reinforced Center Mount: Metal-bushed bore for standard tapered spindles.
Universal Motor Compatibility & Broad Application Range
Equipped with a standard 6mm tapered spindle bore compatible with jewelry polishing lathes, bench grinders, flexible shaft handpieces, and rotary motors. Excellent performance across inside ring polishing, bangle & bracelet finishing, and curved metal & mold buffing.
✔ Non-Chatter Concentricity
Solid hardwood core eliminates shaft wobble, ensuring steady rotational concentricity and preventing band gouging.
✔ High Compound Retention
Interlocking natural wool fiber matrix retains rouge and diamond paste evenly, cutting compound consumption by 35%.
✔ Thermal Dissipation
Natural wool resists friction heat build-up, protecting thin jewelry rings and temper-sensitive metal workpieces.
✔ Factory OEM Support
Direct manufacturer customization for lengths, diameters, stepped profiles, hardness grades, and private branding.
Technical Specifications
Rolking Felt Standard Dimensions & Customization Range
| Parameter |
Standard Specification |
Customization Capability |
| Product Name |
Wool Felt Ring Buffs / Inside Ring Polishing Bob |
Private Labeling / Laser Engraving |
| Felt Material |
100% Compressed Premium Natural Wool Felt |
Soft / Medium / Hard / Rock Hard |
| Core Material |
Solid Seasoned Hardwood (Balanced) |
Reinforced Composite or Metal Core |
| Total Length |
112 mm (3 Inch series) / 134 mm (4 Inch series) |
80 mm – 160 mm Custom Lengths |
| Felt Diameter |
16mm (Small), 19mm (Middle), 20mm (Large), 22mm (4-Inch) |
12 mm – 35 mm Available |
| Center Mount Bore |
Standard Internal Taper / 6mm (1/4″) |
Universal Tapered Spindles & Lathe Arbors |
| Applicable Compounds |
Rouge, Dialux, Tripoli, Diamond Paste, Cerium Oxide |
Pre-impregnated Felt Available on Request |
Target Applications & Use Cases
From Fine Jewelry Workshops to Precision Tooling Laboratories
◆
Inside Ring Buffing
Polishes inner gold, platinum, and silver ring shanks to a flawless mirror shine.
✦
Bangles & Hollowware
Reaches concave curves and deep interior radiuses of bracelets and luxury metal crafts.
⚙
Mold & Die Cavities
Critical for toolmakers lapping cylindrical mold bores, bushings, and curved dies.
★
Horology & Dental Lab
Precision deburring and mirror polishing for watch cases, brass gears, and dental alloy pieces.
Frequently Asked Questions (FAQ)
Essential Technical & Sourcing Information for Buyers
Q1: How do I choose between 3-Inch and 4-Inch wool felt ring buffs?
The 3-Inch series (Small 16mm, Middle 19mm, Large 20mm) is ideal for standard ladies’ and men’s ring sizes (US 4 to 11). The 4-Inch series (22mm diameter) provides a longer working surface (95mm felt length), making it perfect for larger ring sizes, bangles, cuffs, and deep cylindrical metal cavities.
Q2: Which polishing compounds work best with wool felt ring mandrels?
Due to the interlocking natural wool fiber matrix, these ring buffs hold all standard compounds effectively:
• Gold & Silver: Use Red Jeweler’s Rouge or Dialux Green/Blue for high-mirror luster.
• Platinum, Titanium & Stainless Steel: Use White Diamond Compound or Diamond Lapping Paste.
• Brass & Bronze: Use Tripoli for pre-polish followed by Yellow/Green Dialux.
Q3: Will this wool felt ring buff fit standard bench polishers and flexible shaft motors?
Yes. The center bore is precision-engineered with an internal taper (approx. 6mm opening) that slides directly onto standard tapered spindles of bench polishers and jewelry lathes. For flex shaft handpieces, an adapter mandrel or dedicated 6mm arbor can be used.
Q4: How does the wooden mandrel core prevent vibration during high-speed polishing?
Our solid hardwood core is precision-machined and balanced on CNC lathes. Unlike solid-felt bobs that flex or wobble under pressure, the wood core provides rigid structural support and natural vibration damping, ensuring consistent concentricity at speeds up to 3,500 RPM.
Q5: Does Nangong Rolking Felt support custom sizes, densities, and private labeling?
Yes, we are a direct ISO9001-certified manufacturer. We offer full OEM/ODM customization including custom lengths (80mm–160mm), diameters (12mm–35mm), stepped/tapered contours, density levels (Medium to Rock Hard), and customized retail packaging (polybags, blister cards, barcode labelling).
Looking for Factory-Direct Pricing or Custom Sizing?
Contact Nangong Rolking Felt Co., Ltd. for sample kits, wholesale price lists, and bespoke OEM solutions.
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