Customized Metal Ring Binder Mechanism 285mm Length 20mm Width with O-Shaped 3-Ring Design for Stationery Files
Professional O-shaped 3-ring binder mechanism with trigger mechanism for secure paper holding in folders and binders.
| Material | Cold Rolled Steel (Environmental) |
| Standards | DIN, IFI, ASTM, ISO, JIS, BS and non-standard products |
| Overall Length | 90/110/123/133/170/180/210/225/240/264/280/292/300/315mm, etc. |
| Base Width | 15/17/20/26/36/45mm etc. |
| Ring Inside Diameter | 15/16/19/20/25/30/35/38/40/45/50/65/76mm, etc. |
| Ring Number | 2/3/4/5/6/8/9/10/20/26/30, etc. |
| Ring Shape | O/D/Q |
| Ring Spacing | 9.5/19/28.5/45/51/65/70/80/89/95/108mm, etc. |
| Surface Treatment | Zn-plating, Ni-plating, Cr-plating, Tin-plating, copper-plating, resin spraying, heat treatment, hot-dip galvanizing, black oxide coating, painting, baking paint, color zinc-plated, blue black zincplated, rust preventive oil, titanium alloy galvanized, silver plating, plastic, electroplating, anodizing etc. |
| Applications | For stationery files to hold papers |
| Item No | Overall Length (mm) | Base Width (mm) | Overall Height (mm) | Inside Height (mm) | Ring Center Distance (mm) | Rivet Hole Center Distance (mm) |
|---|---|---|---|---|---|---|
| TR285-3-16/20 | 285 | 20 | 20 | 16 | 108×108 | 243 |
| TR285-3-20/20 | 285 | 20 | 25 | 20 | 108×108 | 243 |
| TR285-3-25/20 | 285 | 20 | 30 | 25 | 108×108 | 243 |
| TR285-3-30/20 | 285 | 20 | 36 | 30 | 108×108 | 243 |
| TR285-3-38/20 | 285 | 20 | 44 | 38 | 108×108 | 243 |
| TR285-3-25/26 | 285 | 26 | 30 | 25 | 108×108 | 243 |
| TR285-3-32/26 | 285 | 26 | 38 | 32 | 108×108 | 243 |
| TR285-3-38/26 | 285 | 26 | 41 | 38 | 108×108 | 243 |
| TR285-3-50/26 | 285 | 26 | 58 | 50 | 108×108 | 243 |
Not all available items are listed to page, welcome to contact us directly.
- Custom colors available as required
- OEM / ODM services available
- Free samples available (customer pays delivery)
- Multiple surface treatment options
- Various ring shapes and configurations
- Products separated with cardboard for protection
- Moisture proof agent included
- Packaged in plastic bags and standard cartons
- Protective woven bag available upon request
We are a factory with 15 years of experience in the production of stationery clips.
- Ring mechanism
- Lever Arch clip
- Wire clip
- Spring clip
- Lever clip and metal accessories
Our team has over 100 members, two factory areas. Total area of the factory buildings is 15,000 square meters.
Metal binders are widely used in notebooks, data books, file boxes, etc. and are extremely important metal accessories.
Manual measurement, it will be slightly deviated in different batches, please subject to the physical object.
After receiving the goods, please check or weigh them before using them. If you have any questions, please contact us in time. We can't be responsible for the lack of quantity after use.
Please send the goods by regular express to avoid damage. Before receiving the goods, please check the integrity of the cartons. If there is any damage, our factory will assist logistics company to compensate the customers.
Our factory uses the normal salt spray tester to test the anti-rust effect. Different test methods will have different anti-rust time. It will be slightly deviated.
Generally, the clip opening and closing is intact, but it does not rule out that individual clip opening and closing are not completely aligned, can not be regarded as quality problems, not within the scope of returns.
Because our factory is fully automatic production, production speed. Individual stationery clip surface may have very small scratches, this is normal situation.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.