Product Details
Metal Spiral Binding Coils In Stable Quality With Customized
Measurements And Colors
Quick Details :
- BINDING COILS: Give your papers, files, and documents a
professional touch while also matching your covers with these
plastic spiral binding coils
- PERFECT FOR: These binding coils can help to hold and organize a
variety of paper sheets and files with one coil; perfect to use at
home or for the office
- HIGH QUALITY: Durable coils allow you to compile paper sheets with
ease and store for a long time
- DIMENSIONS: Binding coils measure approximately 12 inches in length
Specifications :
Coil Inner Diameter | Recommended Max.Book Thickness | Pitch |
Inch | MM | MM | MM |
1/4 | 6.4 | 3.4 | 6 |
5/16 | 7.9 | 4.9 | 6 |
3/8 | 9.5 | 6.5 | 6 |
7/16 | 11.1 | 8.1 | 6 |
1/2 | 12.7 | 9.7 | 6 |
9/16 | 14.3 | 11.3 | 6 |
5/8 | 15.9 | 12.9 | 6 |
3/4 | 19.1 | 15.1 | 6 |
7/8 | 22.2 | 18.2 | 6 |
1 | 25.4 | 20.4 | 6 OR 8 |
1-1/4 | 31.8 | 25.8 | 6 OR 8 |
1-1/2 | 38.1 | 32.1 | 6 OR 8 |
2 | 50.8 | 42.8 | 6 OR 8 |
3 | 76.2 | 60 | 6 OR 8 |
4 | 100 | 80 | 6 OR 8 |
Choose Diameter.
- 1/4" (6.4mm) Wire Binding Spines: 2-35 sheets ( 20lb 80gsm )
Binding Capacity.
- 5/16" (7.9mm) Wire Binding Spines: 10-55 sheets ( 20lb 80gsm )
Binding Capacity.
- 3/8" (9.5mm) Wire Binding Spines: 15-70 sheets ( 20lb 80gsm )
Binding Capacity.
- 7/16" (11.1mm) Wire Binding Spines: 25-90 sheets ( 20lb 80gsm )
Binding Capacity.
- 1/2" (12.7mm) Wire Binding Spines: 25-100 sheets ( 20lb 80gsm )
Binding Capacity.
- 9/16" (14.3mm) Wire Binding Spines: 30-125 sheets ( 20lb 80gsm )
Binding Capacity.
- 5/8" (15.9mm) Wire Binding Spines: 30-135 sheets ( 20lb 80gsm )
Binding Capacity.
Company Profile
Factory exterior:

HongKong Sudi Stationery Limited, established on 20 13, is a
professional manufacturer of nylon double-coated wires, PVC plastic
spirals, metal single spirals, calendar hangers, binding machines,
punching machines and various spiral forming machines.
We have well-equipped testing facilities and strong technical
force. Our double wire adopts imported nylon covered wire. All our
binding materials have passed strict SGS testing and CE certified
binding machines, which meet the standards of the European and
American markets. At the same time, we are the supplier of LEO
PAPER GROUP, the largest printing company in Asia. After years of
sales, our products have won a high reputation and wide recognition
at home and abroad.
Our products have a wide variety, high quality, reasonable price,
beautiful design, and are widely used in printing and other
industries.
Our products are widely recognized and trusted by users, and can
meet the ever-changing economic and social needs.
We welcome new and old customers from all walks of life to contact
us for future business relations and mutual success!
GSG Environmental Certificate:

HLMTS Test Report:



Workshop interior:


Quality inspection departments:

Cut strip warehouse:
