Product Specifications
Product Specifications
All Richlong ring binder mechanisms are manufactured to strict quality standards. Below are the general specifications for our product range. For detailed technical drawings and specific dimensions, please contact our team.
D-Ring Mechanisms
| Ring Size | Capacity (sheets) | Plate Width | Hole Spacing |
|---|---|---|---|
| 1/2" (13mm) | ~100 | Custom | Standard 80mm |
| 3/4" (19mm) | ~150 | Custom | Standard 80mm |
| 1" (25mm) | ~200 | Custom | Standard 80mm |
| 1.5" (38mm) | ~300 | Custom | Standard 80mm |
| 2" (51mm) | ~400 | Custom | Standard 80mm |
O-Ring Mechanisms
| Ring Size | Capacity (sheets) | Plate Width | Hole Spacing |
|---|---|---|---|
| 1/2" (13mm) | ~100 | Custom | Standard 80mm |
| 3/4" (19mm) | ~150 | Custom | Standard 80mm |
| 1" (25mm) | ~200 | Custom | Standard 80mm |
Materials & Finishes
- Base Material: Cold-rolled steel (SPCC), Stainless steel (SUS304), Nickel-plated steel
- Surface Finishes: Nickel plated (standard), Zinc plated, Black oxidized, Antique brass, Custom finishes available
- Rivet Material: Brass, Steel, Nickel-plated brass
Quality Standards
- Ring opening/closing force tested to 5,000+ cycles
- Corrosion resistance: 24-hour salt spray test (nickel-plated)
- Dimensional tolerance: ±0.1mm
- RoHS & REACH compliant materials available upon request
For complete technical datasheets and custom specifications, please contact our engineering team.