Double Loop Wire Spool, also called twin loop wire spool, Wire-O binding wire, or double wire binding spool, is designed for professional book binding, calendar binding, notebook binding, report binding, presentation binding, and manual binding. It provides a clean, durable, and lay-flat binding solution for commercial printing houses, stationery manufacturers, binding supply distributors, and office supply brands.
KYA Fasteners supplies double loop wire spools in 3:1 pitch and 2:1 pitch, with sizes from 3/16" to 1-1/2" and wire thickness from 0.70mm to 1.50mm. Gold, silver, bronze, black, white, and custom colors are available for different book binding, calendar, notebook, and promotional printing requirements.
2:1 and 3:1 pitch options: Suitable for automatic wire binding machines, Wire-O binding machines, and wire closers.
Wide size range: Available from 3/16" to 1-1/2" for thin reports, medium notebooks, thick manuals, and large calendars.
Custom wire thickness: Wire thickness can be supplied from 0.70mm to 1.50mm according to size and binding strength requirements.
Custom colors: Gold, silver, bronze, black, white, and customer-specified colors are available for branded binding projects.
Lay-flat binding: Allows books, reports, manuals, and calendars to open flat for easier reading and professional presentation.
Bulk spool supply: Suitable for binding factories, printing houses, office supply distributors, and book binding material wholesalers.
| Pitch | Size | Circle Diameter (mm) | Binding Thickness (mm) | Loops per Carton | Wire Thickness (mm) |
|---|---|---|---|---|---|
| 3:1 Pitch / 32 Loops | 3/16" | 4.8 | 3.0 | 118,000 | 0.70 |
| 1/4" | 6.4 | 4.0 | 80,000 | 0.70 | |
| 5/16" | 7.9 | 5.6 | 58,000 | 0.80 | |
| 3/8" | 9.5 | 7.0 | 42,000 | 0.80 | |
| 7/16" | 11.1 | 9.5 | 28,000 | 0.90 | |
| 1/2" | 12.7 | 11.1 | 24,000 | 0.90 | |
| 9/16" | 14.3 | 12.7 | 18,000 | 1.00 | |
| 2:1 Pitch / 21 Loops | 1/4" | 6.4 | 4.0 | 56,000 | 0.70 |
| 5/16" | 7.9 | 5.6 | 40,000 | 0.80 | |
| 3/8" | 9.8 | 7.0 | 29,500 | 0.80 | |
| 7/16" | 11.1 | 9.5 | 21,000 | 0.90 | |
| 1/2" | 12.7 | 11.1 | 17,500 | 0.90 | |
| 9/16" | 14.3 | 12.7 | 13,000 | 1.00 | |
| 5/8" | 15.9 | 13.2 | 10,000 | 1.10 | |
| 3/4" | 19.0 | 15.0 | 7,000 | 1.20 | |
| 7/8" | 22.2 | 19.0 | 4,500 | 1.20 | |
| 1" | 25.4 | 21.0 | 3,600 | 1.25 | |
| 1-1/8" | 28.6 | 25.4 | 2,400 | 1.50 | |
| 1-1/4" | 31.8 | 28.6 | 2,250 | 1.50 | |
| 1-1/2" | 38.1 | 32.1 | Free cut | 1.50 |
| Pitch Type | Best For | Buying Notes |
|---|---|---|
| 3:1 Pitch / 32 Loops | Thin to medium documents, reports, presentations, notebooks, and calendars. | Commonly used for smaller wire diameters and thinner binding thicknesses. |
| 2:1 Pitch / 21 Loops | Thicker books, manuals, catalogs, sketchbooks, and heavy-duty binding projects. | Suitable for larger wire sizes and thicker binding capacity. |
Double loop wire spool is widely used in commercial book binding, print finishing, office document binding, stationery manufacturing, and calendar production. It gives printed materials a professional appearance while allowing pages to turn smoothly and open flat.
Reports and business presentations
Calendars and desk calendars
Sketchbooks and drawing books
Notebooks, diaries, and planners
Manuals, catalogs, booklets, and training materials
Promotional printed products and custom stationery projects
Explore Related Book Binding Wire
| Selection Factor | Recommendation |
|---|---|
| Pitch | Choose 3:1 pitch for thinner documents and 2:1 pitch for thicker books and manuals. The pitch must match the binding machine and punched hole pattern. |
| Wire Size | Select the wire size according to binding thickness, paper volume, cover thickness, and required page turning space. |
| Wire Thickness | Thicker wire provides stronger binding support for larger books, catalogs, manuals, and heavy-duty projects. |
| Color | Choose gold, silver, bronze, black, white, or custom colors to match cover design, brand identity, or market preference. |
| Machine Compatibility | Confirm compatibility with automatic wire binding machines, double loop wire binding equipment, and wire closers before bulk purchase. |
| Packaging and Supply | Confirm loops per carton, spool packing, carton dimensions, pallet packing, private label, and export packaging requirements. |
KYA Fasteners supplies book binding wire, office staples, industrial fasteners, and binding consumables for global B2B buyers. For printing houses, stationery factories, office supply brands, and binding material distributors, stable pitch, consistent wire diameter, smooth coating, accurate spool winding, and reliable color matching are essential for efficient production and repeat orders.
Complete pitch range: 2:1 and 3:1 double loop wire spools for different binding thicknesses.
Custom colors: Standard and customized color options for branded stationery and printing projects.
Bulk supply: Suitable for importers, wholesalers, printing material distributors, and office supply channels.
OEM support: Custom packaging, private label, barcode labels, and export carton solutions are available.
Application matching: Wire pitch, size, thickness, color, and packing can be recommended according to your binding machine and finished product.
Double loop wire spool is used for binding reports, presentations, calendars, sketchbooks, notebooks, diaries, manuals, catalogs, training books, and other professional printed materials.
3:1 pitch has more loops per inch and is commonly used for thinner documents. 2:1 pitch has fewer loops per inch and is better for thicker books, manuals, and heavy-duty binding projects.
These wires are compatible with 2:1 and 3:1 pitch automatic wire binding machines, Wire-O binding machines, twin loop wire binding machines, and wire closers. The pitch must match the punched hole pattern and machine specification.
Yes. Gold, silver, bronze, black, white, and other custom colors can be supplied according to customer requirements. Custom color matching can support branded stationery, calendar, and printing projects.
Yes. KYA can supply wire thickness from 0.70mm to 1.50mm according to wire size, pitch, binding thickness, strength requirements, and machine compatibility.
Wire-O lay-flat binding allows pages to open flat and turn smoothly. It is useful for calendars, manuals, notebooks, cookbooks, reports, and documents that need easy reading or writing.
Choose the wire size according to binding thickness, paper count, cover thickness, pitch, and machine specification. Thicker books normally require larger wire sizes and stronger wire thickness.
Loops per carton vary by pitch and wire size. KYA supplies from 2,250 to 118,000 loops per carton for listed sizes, while 1-1/2" size can be supplied as free cut.
Yes. KYA can support OEM packaging, private label, barcode labels, carton design, pallet packing, and export packaging for book binding wire distributors and office supply brands.
