Spiral Coil FAQs
1. What coil bind pitch do I need? The most common binding pitch for spiral coils (by far) is 4:1 pitch, but some industry-specific customers use a 5:1, 3:1, and 2.5:1. To know which one you need, just check out machine pitch; in order to be compatible, the machine's pitch and the coil spine pitch need to match.
2. What is the largest book a coil can bind? Coil binding spines come in diameters up to 50mm. That largest coil can bind books up to 1.75" thick, or about 440 sheets of 20 lb. bond copy paper. When it comes to the largest sheet size, it will depend on your machine; most machines have a 12", 14", or 24" punch opening, so they can handle page sizes up to those lengths. Coil binding spines are stocked in either 12" (for 11" letter-size pages), or 36" long options. Custom-cut lengths are also available.
3. Why is the coil longer than my book? Spiral coils are 1" longer than the intended binding edge length to allow for cutting and crimping-in each end. This leaves 1/2" on each side of your page; smaller extensions can be more difficult to handle. So, for example, standard coils are 12" long and intended for letter-size paper that is 11" long.
4. How do I know what coil size I should get? The most accurate way to determine the best coil size for your book is to lay all of your pages on a desk (including covers and any inserts) and measure the thickness of the stack, then add 1/8" to that. Make sure you are not pressing your pages down when you measure them; just allow them to lay loose. If you press down, you may end up with a coil size that is too small to allow your pages to freely turn. Sample: My book is 5/16" thick + 1/8" = 7/16" should be the coil size. Since coils are measured in millimeters, not inches, you can use a conversion calculator to convert it. My 7/16" coil becomes 11.11 mm. Always round up to make page-turning easier, which would mean I should use a 12 mm coil for my book.
5. Is the coil size the outside or inside diameter? Coil binder measurements are the inside diameter, or "ID".
6. Can I buy smaller packs? Our coils are pre-packaged in packs of 100 or 50, depending on the size. We cannot break down packs to offer smaller quantities.
7. Can I buy assorted packs? At this time we do not offer assorted color or assorted size packs. But if there is a demand for them, we may do this in the future, so let us know that you want us to carry assorted packs by emailing firstname.lastname@example.org.
8. Is it possible to coil bind without a machine? Having a spiral coil binding machine will give you the most variety of binding, as you will be able to punch any kind of paper stock you want, but yes, coil binding without a machine is possible (and easy)! Simply get pre-punched front covers, pre-punched backs, and pre-punched filler paper, along with the cutter/crimper pliers. Print your pages and, once all assembled, just manually roll the coil in through all the holes. Then crimp in the ends of the coil with the pliers. Note that some printers may not be able to run pre-punched pages, so check your user manual for compatibility.
9. How much do Spiral Binding Machines cost? The price of a coil binding machine will depend on the volume it can handle as well as the integrated features. They start at about $175 and go up to several thousands of dollars. Our experts can help you find the best coil binding machine for your budget; just call us at .